ResultSet (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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java.sql
Interface ResultSet

All Known Subinterfaces:: CachedRowSet, FilteredRowSet, JdbcRowSet, JoinRowSet, RowSet, SyncResolver, WebRowSet

public interface ResultSet

A table of data representing a database result set, which is usually generated by executing a statement that queries the database.

A ResultSet object maintains a cursor pointing to its current row of data. Initially the cursor is positioned before the first row. The next method moves the cursor to the next row, and because it returns false when there are no more rows in the ResultSet object, it can be used in a while loop to iterate through the result set.

A default ResultSet object is not updatable and has a cursor that moves forward only. Thus, you can iterate through it only once and only from the first row to the last row. It is possible to produce ResultSet objects that are scrollable and/or updatable. The following code fragment, in which con is a valid Connection object, illustrates how to make a result set that is scrollable and insensitive to updates by others, and that is updatable. See ResultSet fields for other options.


       Statement stmt = con.createStatement(
                                      ResultSet.TYPE_SCROLL_INSENSITIVE,
                                      ResultSet.CONCUR_UPDATABLE);
       ResultSet rs = stmt.executeQuery("SELECT a, b FROM TABLE2");
       // rs will be scrollable, will not show changes made by others,
       // and will be updatable

The ResultSet interface provides getter methods (getBoolean, getLong, and so on) for retrieving column values from the current row. Values can be retrieved using either the index number of the column or the name of the column. In general, using the column index will be more efficient. Columns are numbered from 1. For maximum portability, result set columns within each row should be read in left-to-right order, and each column should be read only once.

For the getter methods, a JDBC driver attempts to convert the underlying data to the Java type specified in the getter method and returns a suitable Java value. The JDBC specification has a table showing the allowable mappings from SQL types to Java types that can be used by the ResultSet getter methods.

Column names used as input to getter methods are case insensitive. When a getter method is called with a column name and several columns have the same name, the value of the first matching column will be returned. The column name option is designed to be used when column names are used in the SQL query that generated the result set. For columns that are NOT explicitly named in the query, it is best to use column numbers. If column names are used, there is no way for the programmer to guarantee that they actually refer to the intended columns.

A set of updater methods were added to this interface in the JDBC 2.0 API (JDK 1.2). The comments regarding parameters to the getter methods also apply to parameters to the updater methods.

The updater methods may be used in two ways:

to update a column value in the current row. In a scrollable ResultSet object, the cursor can be moved backwards and forwards, to an absolute position, or to a position relative to the current row. The following code fragment updates the NAME column in the fifth row of the ResultSet object rs and then uses the method updateRow to update the data source table from which rs was derived.
```
       rs.absolute(5); // moves the cursor to the fifth row of rs
       rs.updateString("NAME", "AINSWORTH"); // updates the 
          // NAME column of row 5 to be AINSWORTH
       rs.updateRow(); // updates the row in the data source

 
```

to insert column values into the insert row. An updatable ResultSet object has a special row associated with it that serves as a staging area for building a row to be inserted. The following code fragment moves the cursor to the insert row, builds a three-column row, and inserts it into rs and into the data source table using the method insertRow.


       rs.moveToInsertRow(); // moves cursor to the insert row
       rs.updateString(1, "AINSWORTH"); // updates the 
          // first column of the insert row to be AINSWORTH
       rs.updateInt(2,35); // updates the second column to be 35
       rs.updateBoolean(3, true); // updates the third column to true
       rs.insertRow();
       rs.moveToCurrentRow();

A ResultSet object is automatically closed when the Statement object that generated it is closed, re-executed, or used to retrieve the next result from a sequence of multiple results.

The number, types and properties of a ResultSet object's columns are provided by the ResulSetMetaData object returned by the ResultSet.getMetaData method.

See Also:: Statement.executeQuery(java.lang.String), Statement.getResultSet(), ResultSetMetaData

Field Summary

static int CLOSE_CURSORS_AT_COMMIT
          The constant indicating that ResultSet objects should be closed when the method Connection.commit is called.

static int CONCUR_READ_ONLY
          The constant indicating the concurrency mode for a ResultSet object that may NOT be updated.

static int CONCUR_UPDATABLE
          The constant indicating the concurrency mode for a ResultSet object that may be updated.

static int FETCH_FORWARD
          The constant indicating that the rows in a result set will be processed in a forward direction; first-to-last.

static int FETCH_REVERSE
          The constant indicating that the rows in a result set will be processed in a reverse direction; last-to-first.

static int FETCH_UNKNOWN
          The constant indicating that the order in which rows in a result set will be processed is unknown.

static int HOLD_CURSORS_OVER_COMMIT
          The constant indicating that ResultSet objects should not be closed when the method Connection.commit is called.

static int TYPE_FORWARD_ONLY
          The constant indicating the type for a ResultSet object whose cursor may move only forward.

static int TYPE_SCROLL_INSENSITIVE
          The constant indicating the type for a ResultSet object that is scrollable but generally not sensitive to changes made by others.

static int TYPE_SCROLL_SENSITIVE
          The constant indicating the type for a ResultSet object that is scrollable and generally sensitive to changes made by others.

Method Summary

boolean absolute(int row)
          Moves the cursor to the given row number in this ResultSet object.

void afterLast()
          Moves the cursor to the end of this ResultSet object, just after the last row.

void beforeFirst()
          Moves the cursor to the front of this ResultSet object, just before the first row.

void cancelRowUpdates()
          Cancels the updates made to the current row in this ResultSet object.

void clearWarnings()
          Clears all warnings reported on this ResultSet object.

void close()
          Releases this ResultSet object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed.

void deleteRow()
          Deletes the current row from this ResultSet object and from the underlying database.

int findColumn(String columnName)
          Maps the given ResultSet column name to its ResultSet column index.

boolean first()
          Moves the cursor to the first row in this ResultSet object.

Array getArray(int i)
          Retrieves the value of the designated column in the current row of this ResultSet object as an Array object in the Java programming language.

Array getArray(String colName)
          Retrieves the value of the designated column in the current row of this ResultSet object as an Array object in the Java programming language.

InputStream getAsciiStream(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a stream of ASCII characters.

InputStream getAsciiStream(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a stream of ASCII characters.

BigDecimal getBigDecimal(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.math.BigDecimal with full precision.

BigDecimal getBigDecimal(int columnIndex, int scale)
          Deprecated.

BigDecimal getBigDecimal(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.math.BigDecimal with full precision.

BigDecimal getBigDecimal(String columnName, int scale)
          Deprecated.

InputStream getBinaryStream(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a binary stream of uninterpreted bytes.

InputStream getBinaryStream(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a stream of uninterpreted bytes.

Blob getBlob(int i)
          Retrieves the value of the designated column in the current row of this ResultSet object as a Blob object in the Java programming language.

Blob getBlob(String colName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a Blob object in the Java programming language.

boolean getBoolean(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a boolean in the Java programming language.

boolean getBoolean(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a boolean in the Java programming language.

byte getByte(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a byte in the Java programming language.

byte getByte(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a byte in the Java programming language.

byte[] getBytes(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a byte array in the Java programming language.

byte[] getBytes(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a byte array in the Java programming language.

Reader getCharacterStream(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.io.Reader object.

Reader getCharacterStream(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.io.Reader object.

Clob getClob(int i)
          Retrieves the value of the designated column in the current row of this ResultSet object as a Clob object in the Java programming language.

Clob getClob(String colName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a Clob object in the Java programming language.

int getConcurrency()
          Retrieves the concurrency mode of this ResultSet object.

String getCursorName()
          Retrieves the name of the SQL cursor used by this ResultSet object.

Date getDate(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Date object in the Java programming language.

Date getDate(int columnIndex, Calendar cal)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Date object in the Java programming language.

Date getDate(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Date object in the Java programming language.

Date getDate(String columnName, Calendar cal)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Date object in the Java programming language.

double getDouble(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a double in the Java programming language.

double getDouble(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a double in the Java programming language.

int getFetchDirection()
          Retrieves the fetch direction for this ResultSet object.

int getFetchSize()
          Retrieves the fetch size for this ResultSet object.

float getFloat(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a float in the Java programming language.

float getFloat(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a float in the Java programming language.

int getInt(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as an int in the Java programming language.

int getInt(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as an int in the Java programming language.

long getLong(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a long in the Java programming language.

long getLong(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a long in the Java programming language.

ResultSetMetaData getMetaData()
          Retrieves the number, types and properties of this ResultSet object's columns.

Object getObject(int columnIndex)
          Gets the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.

Object getObject(int i, Map<String,Class<?>> map)
          Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.

Object getObject(String columnName)
          Gets the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.

Object getObject(String colName, Map<String,Class<?>> map)
          Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.

Ref getRef(int i)
          Retrieves the value of the designated column in the current row of this ResultSet object as a Ref object in the Java programming language.

Ref getRef(String colName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a Ref object in the Java programming language.

int getRow()
          Retrieves the current row number.

short getShort(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a short in the Java programming language.

short getShort(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a short in the Java programming language.

Statement getStatement()
          Retrieves the Statement object that produced this ResultSet object.

String getString(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a String in the Java programming language.

String getString(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a String in the Java programming language.

Time getTime(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Time object in the Java programming language.

Time getTime(int columnIndex, Calendar cal)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Time object in the Java programming language.

Time getTime(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Time object in the Java programming language.

Time getTime(String columnName, Calendar cal)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Time object in the Java programming language.

Timestamp getTimestamp(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object in the Java programming language.

Timestamp getTimestamp(int columnIndex, Calendar cal)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object in the Java programming language.

Timestamp getTimestamp(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object.

Timestamp getTimestamp(String columnName, Calendar cal)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object in the Java programming language.

int getType()
          Retrieves the type of this ResultSet object.

InputStream getUnicodeStream(int columnIndex)
          Deprecated. use getCharacterStream in place of getUnicodeStream

InputStream getUnicodeStream(String columnName)
          Deprecated. use getCharacterStream instead

URL getURL(int columnIndex)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.net.URL object in the Java programming language.

URL getURL(String columnName)
          Retrieves the value of the designated column in the current row of this ResultSet object as a java.net.URL object in the Java programming language.

SQLWarning getWarnings()
          Retrieves the first warning reported by calls on this ResultSet object.

void insertRow()
          Inserts the contents of the insert row into this ResultSet object and into the database.

boolean isAfterLast()
          Retrieves whether the cursor is after the last row in this ResultSet object.

boolean isBeforeFirst()
          Retrieves whether the cursor is before the first row in this ResultSet object.

boolean isFirst()
          Retrieves whether the cursor is on the first row of this ResultSet object.

boolean isLast()
          Retrieves whether the cursor is on the last row of this ResultSet object.

boolean last()
          Moves the cursor to the last row in this ResultSet object.

void moveToCurrentRow()
          Moves the cursor to the remembered cursor position, usually the current row.

void moveToInsertRow()
          Moves the cursor to the insert row.

boolean next()
          Moves the cursor down one row from its current position.

boolean previous()
          Moves the cursor to the previous row in this ResultSet object.

void refreshRow()
          Refreshes the current row with its most recent value in the database.

boolean relative(int rows)
          Moves the cursor a relative number of rows, either positive or negative.

boolean rowDeleted()
          Retrieves whether a row has been deleted.

boolean rowInserted()
          Retrieves whether the current row has had an insertion.

boolean rowUpdated()
          Retrieves whether the current row has been updated.

void setFetchDirection(int direction)
          Gives a hint as to the direction in which the rows in this ResultSet object will be processed.

void setFetchSize(int rows)
          Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed for this ResultSet object.

void updateArray(int columnIndex, Array x)
          Updates the designated column with a java.sql.Array value.

void updateArray(String columnName, Array x)
          Updates the designated column with a java.sql.Array value.

void updateAsciiStream(int columnIndex, InputStream x, int length)
          Updates the designated column with an ascii stream value.

void updateAsciiStream(String columnName, InputStream x, int length)
          Updates the designated column with an ascii stream value.

void updateBigDecimal(int columnIndex, BigDecimal x)
          Updates the designated column with a java.math.BigDecimal value.

void updateBigDecimal(String columnName, BigDecimal x)
          Updates the designated column with a java.sql.BigDecimal value.

void updateBinaryStream(int columnIndex, InputStream x, int length)
          Updates the designated column with a binary stream value.

void updateBinaryStream(String columnName, InputStream x, int length)
          Updates the designated column with a binary stream value.

void updateBlob(int columnIndex, Blob x)
          Updates the designated column with a java.sql.Blob value.

void updateBlob(String columnName, Blob x)
          Updates the designated column with a java.sql.Blob value.

void updateBoolean(int columnIndex, boolean x)
          Updates the designated column with a boolean value.

void updateBoolean(String columnName, boolean x)
          Updates the designated column with a boolean value.

void updateByte(int columnIndex, byte x)
          Updates the designated column with a byte value.

void updateByte(String columnName, byte x)
          Updates the designated column with a byte value.

void updateBytes(int columnIndex, byte[] x)
          Updates the designated column with a byte array value.

void updateBytes(String columnName, byte[] x)
          Updates the designated column with a byte array value.

void updateCharacterStream(int columnIndex, Reader x, int length)
          Updates the designated column with a character stream value.

void updateCharacterStream(String columnName, Reader reader, int length)
          Updates the designated column with a character stream value.

void updateClob(int columnIndex, Clob x)
          Updates the designated column with a java.sql.Clob value.

void updateClob(String columnName, Clob x)
          Updates the designated column with a java.sql.Clob value.

void updateDate(int columnIndex, Date x)
          Updates the designated column with a java.sql.Date value.

void updateDate(String columnName, Date x)
          Updates the designated column with a java.sql.Date value.

void updateDouble(int columnIndex, double x)
          Updates the designated column with a double value.

void updateDouble(String columnName, double x)
          Updates the designated column with a double value.

void updateFloat(int columnIndex, float x)
          Updates the designated column with a float value.

void updateFloat(String columnName, float x)
          Updates the designated column with a float value.

void updateInt(int columnIndex, int x)
          Updates the designated column with an int value.

void updateInt(String columnName, int x)
          Updates the designated column with an int value.

void updateLong(int columnIndex, long x)
          Updates the designated column with a long value.

void updateLong(String columnName, long x)
          Updates the designated column with a long value.

void updateNull(int columnIndex)
          Gives a nullable column a null value.

void updateNull(String columnName)
          Updates the designated column with a null value.

void updateObject(int columnIndex, Object x)
          Updates the designated column with an Object value.

void updateObject(int columnIndex, Object x, int scale)
          Updates the designated column with an Object value.

void updateObject(String columnName, Object x)
          Updates the designated column with an Object value.

void updateObject(String columnName, Object x, int scale)
          Updates the designated column with an Object value.

void updateRef(int columnIndex, Ref x)
          Updates the designated column with a java.sql.Ref value.

void updateRef(String columnName, Ref x)
          Updates the designated column with a java.sql.Ref value.

void updateRow()
          Updates the underlying database with the new contents of the current row of this ResultSet object.

void updateShort(int columnIndex, short x)
          Updates the designated column with a short value.

void updateShort(String columnName, short x)
          Updates the designated column with a short value.

void updateString(int columnIndex, String x)
          Updates the designated column with a String value.

void updateString(String columnName, String x)
          Updates the designated column with a String value.

void updateTime(int columnIndex, Time x)
          Updates the designated column with a java.sql.Time value.

void updateTime(String columnName, Time x)
          Updates the designated column with a java.sql.Time value.

void updateTimestamp(int columnIndex, Timestamp x)
          Updates the designated column with a java.sql.Timestamp value.

void updateTimestamp(String columnName, Timestamp x)
          Updates the designated column with a java.sql.Timestamp value.

boolean wasNull()
          Reports whether the last column read had a value of SQL NULL.

Field Summary
`static int`	`CLOSE_CURSORS_AT_COMMIT` The constant indicating that `ResultSet` objects should be closed when the method `Connection.commit` is called.
`static int`	`CONCUR_READ_ONLY` The constant indicating the concurrency mode for a `ResultSet` object that may NOT be updated.
`static int`	`CONCUR_UPDATABLE` The constant indicating the concurrency mode for a `ResultSet` object that may be updated.
`static int`	`FETCH_FORWARD` The constant indicating that the rows in a result set will be processed in a forward direction; first-to-last.
`static int`	`FETCH_REVERSE` The constant indicating that the rows in a result set will be processed in a reverse direction; last-to-first.
`static int`	`FETCH_UNKNOWN` The constant indicating that the order in which rows in a result set will be processed is unknown.
`static int`	`HOLD_CURSORS_OVER_COMMIT` The constant indicating that `ResultSet` objects should not be closed when the method `Connection.commit` is called.
`static int`	`TYPE_FORWARD_ONLY` The constant indicating the type for a `ResultSet` object whose cursor may move only forward.
`static int`	`TYPE_SCROLL_INSENSITIVE` The constant indicating the type for a `ResultSet` object that is scrollable but generally not sensitive to changes made by others.
`static int`	`TYPE_SCROLL_SENSITIVE` The constant indicating the type for a `ResultSet` object that is scrollable and generally sensitive to changes made by others.

Method Summary
`boolean`	`absolute(int row)` Moves the cursor to the given row number in this `ResultSet` object.
`void`	`afterLast()` Moves the cursor to the end of this `ResultSet` object, just after the last row.
`void`	`beforeFirst()` Moves the cursor to the front of this `ResultSet` object, just before the first row.
`void`	`cancelRowUpdates()` Cancels the updates made to the current row in this `ResultSet` object.
`void`	`clearWarnings()` Clears all warnings reported on this `ResultSet` object.
`void`	`close()` Releases this `ResultSet` object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed.
`void`	`deleteRow()` Deletes the current row from this `ResultSet` object and from the underlying database.
`int`	`findColumn(String columnName)` Maps the given `ResultSet` column name to its `ResultSet` column index.
`boolean`	`first()` Moves the cursor to the first row in this `ResultSet` object.
`Array`	`getArray(int i)` Retrieves the value of the designated column in the current row of this `ResultSet` object as an `Array` object in the Java programming language.
`Array`	`getArray(String colName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as an `Array` object in the Java programming language.
`InputStream`	`getAsciiStream(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a stream of ASCII characters.
`InputStream`	`getAsciiStream(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a stream of ASCII characters.
`BigDecimal`	`getBigDecimal(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.math.BigDecimal` with full precision.
`BigDecimal`	`getBigDecimal(int columnIndex, int scale)` Deprecated.
`BigDecimal`	`getBigDecimal(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.math.BigDecimal` with full precision.
`BigDecimal`	`getBigDecimal(String columnName, int scale)` Deprecated.
`InputStream`	`getBinaryStream(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a binary stream of uninterpreted bytes.
`InputStream`	`getBinaryStream(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a stream of uninterpreted `byte`s.
`Blob`	`getBlob(int i)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `Blob` object in the Java programming language.
`Blob`	`getBlob(String colName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `Blob` object in the Java programming language.
`boolean`	`getBoolean(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `boolean` in the Java programming language.
`boolean`	`getBoolean(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `boolean` in the Java programming language.
`byte`	`getByte(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `byte` in the Java programming language.
`byte`	`getByte(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `byte` in the Java programming language.
`byte[]`	`getBytes(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `byte` array in the Java programming language.
`byte[]`	`getBytes(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `byte` array in the Java programming language.
`Reader`	`getCharacterStream(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.io.Reader` object.
`Reader`	`getCharacterStream(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.io.Reader` object.
`Clob`	`getClob(int i)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `Clob` object in the Java programming language.
`Clob`	`getClob(String colName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `Clob` object in the Java programming language.
`int`	`getConcurrency()` Retrieves the concurrency mode of this `ResultSet` object.
`String`	`getCursorName()` Retrieves the name of the SQL cursor used by this `ResultSet` object.
`Date`	`getDate(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Date` object in the Java programming language.
`Date`	`getDate(int columnIndex, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Date` object in the Java programming language.
`Date`	`getDate(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Date` object in the Java programming language.
`Date`	`getDate(String columnName, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Date` object in the Java programming language.
`double`	`getDouble(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `double` in the Java programming language.
`double`	`getDouble(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `double` in the Java programming language.
`int`	`getFetchDirection()` Retrieves the fetch direction for this `ResultSet` object.
`int`	`getFetchSize()` Retrieves the fetch size for this `ResultSet` object.
`float`	`getFloat(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `float` in the Java programming language.
`float`	`getFloat(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `float` in the Java programming language.
`int`	`getInt(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as an `int` in the Java programming language.
`int`	`getInt(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as an `int` in the Java programming language.
`long`	`getLong(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `long` in the Java programming language.
`long`	`getLong(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `long` in the Java programming language.
`ResultSetMetaData`	`getMetaData()` Retrieves the number, types and properties of this `ResultSet` object's columns.
`Object`	`getObject(int columnIndex)` Gets the value of the designated column in the current row of this `ResultSet` object as an `Object` in the Java programming language.
`Object`	`getObject(int i, Map<String,Class<?>> map)` Retrieves the value of the designated column in the current row of this `ResultSet` object as an `Object` in the Java programming language.
`Object`	`getObject(String columnName)` Gets the value of the designated column in the current row of this `ResultSet` object as an `Object` in the Java programming language.
`Object`	`getObject(String colName, Map<String,Class<?>> map)` Retrieves the value of the designated column in the current row of this `ResultSet` object as an `Object` in the Java programming language.
`Ref`	`getRef(int i)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `Ref` object in the Java programming language.
`Ref`	`getRef(String colName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `Ref` object in the Java programming language.
`int`	`getRow()` Retrieves the current row number.
`short`	`getShort(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `short` in the Java programming language.
`short`	`getShort(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `short` in the Java programming language.
`Statement`	`getStatement()` Retrieves the `Statement` object that produced this `ResultSet` object.
`String`	`getString(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `String` in the Java programming language.
`String`	`getString(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `String` in the Java programming language.
`Time`	`getTime(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Time` object in the Java programming language.
`Time`	`getTime(int columnIndex, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Time` object in the Java programming language.
`Time`	`getTime(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Time` object in the Java programming language.
`Time`	`getTime(String columnName, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Time` object in the Java programming language.
`Timestamp`	`getTimestamp(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Timestamp` object in the Java programming language.
`Timestamp`	`getTimestamp(int columnIndex, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Timestamp` object in the Java programming language.
`Timestamp`	`getTimestamp(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Timestamp` object.
`Timestamp`	`getTimestamp(String columnName, Calendar cal)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.sql.Timestamp` object in the Java programming language.
`int`	`getType()` Retrieves the type of this `ResultSet` object.
`InputStream`	`getUnicodeStream(int columnIndex)` Deprecated. use `getCharacterStream` in place of `getUnicodeStream`
`InputStream`	`getUnicodeStream(String columnName)` Deprecated. use `getCharacterStream` instead
`URL`	`getURL(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.net.URL` object in the Java programming language.
`URL`	`getURL(String columnName)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `java.net.URL` object in the Java programming language.
`SQLWarning`	`getWarnings()` Retrieves the first warning reported by calls on this `ResultSet` object.
`void`	`insertRow()` Inserts the contents of the insert row into this `ResultSet` object and into the database.
`boolean`	`isAfterLast()` Retrieves whether the cursor is after the last row in this `ResultSet` object.
`boolean`	`isBeforeFirst()` Retrieves whether the cursor is before the first row in this `ResultSet` object.
`boolean`	`isFirst()` Retrieves whether the cursor is on the first row of this `ResultSet` object.
`boolean`	`isLast()` Retrieves whether the cursor is on the last row of this `ResultSet` object.
`boolean`	`last()` Moves the cursor to the last row in this `ResultSet` object.
`void`	`moveToCurrentRow()` Moves the cursor to the remembered cursor position, usually the current row.
`void`	`moveToInsertRow()` Moves the cursor to the insert row.
`boolean`	`next()` Moves the cursor down one row from its current position.
`boolean`	`previous()` Moves the cursor to the previous row in this `ResultSet` object.
`void`	`refreshRow()` Refreshes the current row with its most recent value in the database.
`boolean`	`relative(int rows)` Moves the cursor a relative number of rows, either positive or negative.
`boolean`	`rowDeleted()` Retrieves whether a row has been deleted.
`boolean`	`rowInserted()` Retrieves whether the current row has had an insertion.
`boolean`	`rowUpdated()` Retrieves whether the current row has been updated.
`void`	`setFetchDirection(int direction)` Gives a hint as to the direction in which the rows in this `ResultSet` object will be processed.
`void`	`setFetchSize(int rows)` Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed for this `ResultSet` object.
`void`	`updateArray(int columnIndex, Array x)` Updates the designated column with a `java.sql.Array` value.
`void`	`updateArray(String columnName, Array x)` Updates the designated column with a `java.sql.Array` value.
`void`	`updateAsciiStream(int columnIndex, InputStream x, int length)` Updates the designated column with an ascii stream value.
`void`	`updateAsciiStream(String columnName, InputStream x, int length)` Updates the designated column with an ascii stream value.
`void`	`updateBigDecimal(int columnIndex, BigDecimal x)` Updates the designated column with a `java.math.BigDecimal` value.
`void`	`updateBigDecimal(String columnName, BigDecimal x)` Updates the designated column with a `java.sql.BigDecimal` value.
`void`	`updateBinaryStream(int columnIndex, InputStream x, int length)` Updates the designated column with a binary stream value.
`void`	`updateBinaryStream(String columnName, InputStream x, int length)` Updates the designated column with a binary stream value.
`void`	`updateBlob(int columnIndex, Blob x)` Updates the designated column with a `java.sql.Blob` value.
`void`	`updateBlob(String columnName, Blob x)` Updates the designated column with a `java.sql.Blob` value.
`void`	`updateBoolean(int columnIndex, boolean x)` Updates the designated column with a `boolean` value.
`void`	`updateBoolean(String columnName, boolean x)` Updates the designated column with a `boolean` value.
`void`	`updateByte(int columnIndex, byte x)` Updates the designated column with a `byte` value.
`void`	`updateByte(String columnName, byte x)` Updates the designated column with a `byte` value.
`void`	`updateBytes(int columnIndex, byte[] x)` Updates the designated column with a `byte` array value.
`void`	`updateBytes(String columnName, byte[] x)` Updates the designated column with a byte array value.
`void`	`updateCharacterStream(int columnIndex, Reader x, int length)` Updates the designated column with a character stream value.
`void`	`updateCharacterStream(String columnName, Reader reader, int length)` Updates the designated column with a character stream value.
`void`	`updateClob(int columnIndex, Clob x)` Updates the designated column with a `java.sql.Clob` value.
`void`	`updateClob(String columnName, Clob x)` Updates the designated column with a `java.sql.Clob` value.
`void`	`updateDate(int columnIndex, Date x)` Updates the designated column with a `java.sql.Date` value.
`void`	`updateDate(String columnName, Date x)` Updates the designated column with a `java.sql.Date` value.
`void`	`updateDouble(int columnIndex, double x)` Updates the designated column with a `double` value.
`void`	`updateDouble(String columnName, double x)` Updates the designated column with a `double` value.
`void`	`updateFloat(int columnIndex, float x)` Updates the designated column with a `float` value.
`void`	`updateFloat(String columnName, float x)` Updates the designated column with a `float` value.
`void`	`updateInt(int columnIndex, int x)` Updates the designated column with an `int` value.
`void`	`updateInt(String columnName, int x)` Updates the designated column with an `int` value.
`void`	`updateLong(int columnIndex, long x)` Updates the designated column with a `long` value.
`void`	`updateLong(String columnName, long x)` Updates the designated column with a `long` value.
`void`	`updateNull(int columnIndex)` Gives a nullable column a null value.
`void`	`updateNull(String columnName)` Updates the designated column with a `null` value.
`void`	`updateObject(int columnIndex, Object x)` Updates the designated column with an `Object` value.
`void`	`updateObject(int columnIndex, Object x, int scale)` Updates the designated column with an `Object` value.
`void`	`updateObject(String columnName, Object x)` Updates the designated column with an `Object` value.
`void`	`updateObject(String columnName, Object x, int scale)` Updates the designated column with an `Object` value.
`void`	`updateRef(int columnIndex, Ref x)` Updates the designated column with a `java.sql.Ref` value.
`void`	`updateRef(String columnName, Ref x)` Updates the designated column with a `java.sql.Ref` value.
`void`	`updateRow()` Updates the underlying database with the new contents of the current row of this `ResultSet` object.
`void`	`updateShort(int columnIndex, short x)` Updates the designated column with a `short` value.
`void`	`updateShort(String columnName, short x)` Updates the designated column with a `short` value.
`void`	`updateString(int columnIndex, String x)` Updates the designated column with a `String` value.
`void`	`updateString(String columnName, String x)` Updates the designated column with a `String` value.
`void`	`updateTime(int columnIndex, Time x)` Updates the designated column with a `java.sql.Time` value.
`void`	`updateTime(String columnName, Time x)` Updates the designated column with a `java.sql.Time` value.
`void`	`updateTimestamp(int columnIndex, Timestamp x)` Updates the designated column with a `java.sql.Timestamp` value.
`void`	`updateTimestamp(String columnName, Timestamp x)` Updates the designated column with a `java.sql.Timestamp` value.
`boolean`	`wasNull()` Reports whether the last column read had a value of SQL `NULL`.

Field Detail

FETCH_FORWARD

static final int FETCH_FORWARD

The constant indicating that the rows in a result set will be processed in a forward direction; first-to-last. This constant is used by the method setFetchDirection as a hint to the driver, which the driver may ignore.

Since:: 1.2
See Also:: Constant Field Values

FETCH_REVERSE

static final int FETCH_REVERSE

The constant indicating that the rows in a result set will be processed in a reverse direction; last-to-first. This constant is used by the method setFetchDirection as a hint to the driver, which the driver may ignore.

Since:: 1.2
See Also:: Constant Field Values

FETCH_UNKNOWN

static final int FETCH_UNKNOWN

The constant indicating that the order in which rows in a result set will be processed is unknown. This constant is used by the method setFetchDirection as a hint to the driver, which the driver may ignore.

See Also:: Constant Field Values

TYPE_FORWARD_ONLY

static final int TYPE_FORWARD_ONLY

The constant indicating the type for a ResultSet object whose cursor may move only forward.

Since:: 1.2
See Also:: Constant Field Values

TYPE_SCROLL_INSENSITIVE

static final int TYPE_SCROLL_INSENSITIVE

The constant indicating the type for a ResultSet object that is scrollable but generally not sensitive to changes made by others.

Since:: 1.2
See Also:: Constant Field Values

TYPE_SCROLL_SENSITIVE

static final int TYPE_SCROLL_SENSITIVE

The constant indicating the type for a ResultSet object that is scrollable and generally sensitive to changes made by others.

Since:: 1.2
See Also:: Constant Field Values

CONCUR_READ_ONLY

static final int CONCUR_READ_ONLY

The constant indicating the concurrency mode for a ResultSet object that may NOT be updated.

Since:: 1.2
See Also:: Constant Field Values

CONCUR_UPDATABLE

static final int CONCUR_UPDATABLE

The constant indicating the concurrency mode for a ResultSet object that may be updated.

Since:: 1.2
See Also:: Constant Field Values

HOLD_CURSORS_OVER_COMMIT

static final int HOLD_CURSORS_OVER_COMMIT

The constant indicating that ResultSet objects should not be closed when the method Connection.commit is called.

Since:: 1.4
See Also:: Constant Field Values

CLOSE_CURSORS_AT_COMMIT

static final int CLOSE_CURSORS_AT_COMMIT

The constant indicating that ResultSet objects should be closed when the method Connection.commit is called.

Since:: 1.4
See Also:: Constant Field Values

Method Detail

boolean next()
             throws SQLException

Moves the cursor down one row from its current position. A ResultSet cursor is initially positioned before the first row; the first call to the method next makes the first row the current row; the second call makes the second row the current row, and so on.

If an input stream is open for the current row, a call to the method next will implicitly close it. A ResultSet object's warning chain is cleared when a new row is read.

Returns:: true if the new current row is valid; false if there are no more rows
Throws:: SQLException - if a database access error occurs

close

void close()
           throws SQLException

Releases this ResultSet object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed.

Note: A ResultSet object is automatically closed by the Statement object that generated it when that Statement object is closed, re-executed, or is used to retrieve the next result from a sequence of multiple results. A ResultSet object is also automatically closed when it is garbage collected.

Throws:: SQLException - if a database access error occurs

wasNull

boolean wasNull()
                throws SQLException

Reports whether the last column read had a value of SQL NULL. Note that you must first call one of the getter methods on a column to try to read its value and then call the method wasNull to see if the value read was SQL NULL.

Returns:: true if the last column value read was SQL NULL and false otherwise
Throws:: SQLException - if a database access error occurs

getString

String getString(int columnIndex)
                 throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a String in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getBoolean

boolean getBoolean(int columnIndex)
                   throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a boolean in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is false
Throws:: SQLException - if a database access error occurs

getByte

byte getByte(int columnIndex)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a byte in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getShort

short getShort(int columnIndex)
               throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a short in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getInt

int getInt(int columnIndex)
           throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as an int in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getLong

long getLong(int columnIndex)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a long in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getFloat

float getFloat(int columnIndex)
               throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a float in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getDouble

double getDouble(int columnIndex)
                 throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a double in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getBigDecimal

@Deprecated
BigDecimal getBigDecimal(int columnIndex,
                                    int scale)
                         throws SQLException

Deprecated.

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.BigDecimal in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; scale - the number of digits to the right of the decimal point
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getBytes

byte[] getBytes(int columnIndex)
                throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a byte array in the Java programming language. The bytes represent the raw values returned by the driver.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getDate

Date getDate(int columnIndex)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Date object in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getTime

Time getTime(int columnIndex)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Time object in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getTimestamp

Timestamp getTimestamp(int columnIndex)
                       throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object in the Java programming language.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getAsciiStream

InputStream getAsciiStream(int columnIndex)
                           throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a stream of ASCII characters. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving large LONGVARCHAR values. The JDBC driver will do any necessary conversion from the database format into ASCII.

Note: All the data in the returned stream must be read prior to getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream may return 0 when the method InputStream.available is called whether there is data available or not.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: a Java input stream that delivers the database column value as a stream of one-byte ASCII characters; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getUnicodeStream

@Deprecated
InputStream getUnicodeStream(int columnIndex)
                             throws SQLException

Deprecated. use getCharacterStream in place of getUnicodeStream

Retrieves the value of the designated column in the current row of this ResultSet object as as a stream of two-byte Unicode characters. The first byte is the high byte; the second byte is the low byte. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving large LONGVARCHARvalues. The JDBC driver will do any necessary conversion from the database format into Unicode.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: a Java input stream that delivers the database column value as a stream of two-byte Unicode characters; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getBinaryStream

InputStream getBinaryStream(int columnIndex)
                            throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a binary stream of uninterpreted bytes. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving large LONGVARBINARY values.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: a Java input stream that delivers the database column value as a stream of uninterpreted bytes; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getString

String getString(String columnName)
                 throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a String in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getBoolean

boolean getBoolean(String columnName)
                   throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a boolean in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is false
Throws:: SQLException - if a database access error occurs

getByte

byte getByte(String columnName)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a byte in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getShort

short getShort(String columnName)
               throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a short in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getInt

int getInt(String columnName)
           throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as an int in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getLong

long getLong(String columnName)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a long in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getFloat

float getFloat(String columnName)
               throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a float in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getDouble

double getDouble(String columnName)
                 throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a double in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is 0
Throws:: SQLException - if a database access error occurs

getBigDecimal

@Deprecated
BigDecimal getBigDecimal(String columnName,
                                    int scale)
                         throws SQLException

Deprecated.

Retrieves the value of the designated column in the current row of this ResultSet object as a java.math.BigDecimal in the Java programming language.

Parameters:: columnName - the SQL name of the column; scale - the number of digits to the right of the decimal point
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getBytes

byte[] getBytes(String columnName)
                throws SQLException

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getDate

Date getDate(String columnName)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Date object in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getTime

Time getTime(String columnName)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Time object in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getTimestamp

Timestamp getTimestamp(String columnName)
                       throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object.

Parameters:: columnName - the SQL name of the column
Returns:: the column value; if the value is SQL NULL, the value returned is null
Throws:: SQLException - if a database access error occurs

getAsciiStream

InputStream getAsciiStream(String columnName)
                           throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a stream of ASCII characters. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving large LONGVARCHAR values. The JDBC driver will do any necessary conversion from the database format into ASCII.

Note: All the data in the returned stream must be read prior to getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream may return 0 when the method available is called whether there is data available or not.

Parameters:: columnName - the SQL name of the column
Returns:: a Java input stream that delivers the database column value as a stream of one-byte ASCII characters. If the value is SQL NULL, the value returned is null.
Throws:: SQLException - if a database access error occurs

getUnicodeStream

@Deprecated
InputStream getUnicodeStream(String columnName)
                             throws SQLException

Deprecated. use getCharacterStream instead

Retrieves the value of the designated column in the current row of this ResultSet object as a stream of two-byte Unicode characters. The first byte is the high byte; the second byte is the low byte. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving large LONGVARCHAR values. The JDBC technology-enabled driver will do any necessary conversion from the database format into Unicode.

Parameters:: columnName - the SQL name of the column
Returns:: a Java input stream that delivers the database column value as a stream of two-byte Unicode characters. If the value is SQL NULL, the value returned is null.
Throws:: SQLException - if a database access error occurs

getBinaryStream

InputStream getBinaryStream(String columnName)
                            throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a stream of uninterpreted bytes. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving large LONGVARBINARY values.

Note: All the data in the returned stream must be read prior to getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream may return 0 when the method available is called whether there is data available or not.

Parameters:: columnName - the SQL name of the column
Returns:: a Java input stream that delivers the database column value as a stream of uninterpreted bytes; if the value is SQL NULL, the result is null
Throws:: SQLException - if a database access error occurs

getWarnings

SQLWarning getWarnings()
                       throws SQLException

Retrieves the first warning reported by calls on this ResultSet object. Subsequent warnings on this ResultSet object will be chained to the SQLWarning object that this method returns.

The warning chain is automatically cleared each time a new row is read. This method may not be called on a ResultSet object that has been closed; doing so will cause an SQLException to be thrown.

Note: This warning chain only covers warnings caused by ResultSet methods. Any warning caused by Statement methods (such as reading OUT parameters) will be chained on the Statement object.

Returns:: the first SQLWarning object reported or null if there are none
Throws:: SQLException - if a database access error occurs or this method is called on a closed result set

clearWarnings

void clearWarnings()
                   throws SQLException

Clears all warnings reported on this ResultSet object. After this method is called, the method getWarnings returns null until a new warning is reported for this ResultSet object.

Throws:: SQLException - if a database access error occurs

getCursorName

String getCursorName()
                     throws SQLException

Retrieves the name of the SQL cursor used by this ResultSet object.

In SQL, a result table is retrieved through a cursor that is named. The current row of a result set can be updated or deleted using a positioned update/delete statement that references the cursor name. To insure that the cursor has the proper isolation level to support update, the cursor's SELECT statement should be of the form SELECT FOR UPDATE. If FOR UPDATE is omitted, the positioned updates may fail.

The JDBC API supports this SQL feature by providing the name of the SQL cursor used by a ResultSet object. The current row of a ResultSet object is also the current row of this SQL cursor.

Note: If positioned update is not supported, a SQLException is thrown.

Returns:: the SQL name for this ResultSet object's cursor
Throws:: SQLException - if a database access error occurs

getMetaData

ResultSetMetaData getMetaData()
                              throws SQLException

Retrieves the number, types and properties of this ResultSet object's columns.

Returns:: the description of this ResultSet object's columns
Throws:: SQLException - if a database access error occurs

getObject

Object getObject(int columnIndex)
                 throws SQLException

Gets the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.

This method will return the value of the given column as a Java object. The type of the Java object will be the default Java object type corresponding to the column's SQL type, following the mapping for built-in types specified in the JDBC specification. If the value is an SQL NULL, the driver returns a Java null.

This method may also be used to read database-specific abstract data types. In the JDBC 2.0 API, the behavior of method getObject is extended to materialize data of SQL user-defined types. When a column contains a structured or distinct value, the behavior of this method is as if it were a call to: getObject(columnIndex, this.getStatement().getConnection().getTypeMap()).

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: a java.lang.Object holding the column value
Throws:: SQLException - if a database access error occurs

getObject

Object getObject(String columnName)
                 throws SQLException

Gets the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.

This method may also be used to read database-specific abstract data types.

In the JDBC 2.0 API, the behavior of the method getObject is extended to materialize data of SQL user-defined types. When a column contains a structured or distinct value, the behavior of this method is as if it were a call to: getObject(columnIndex, this.getStatement().getConnection().getTypeMap()).

Parameters:: columnName - the SQL name of the column
Returns:: a java.lang.Object holding the column value
Throws:: SQLException - if a database access error occurs

findColumn

int findColumn(String columnName)
               throws SQLException

Maps the given ResultSet column name to its ResultSet column index.

Parameters:: columnName - the name of the column
Returns:: the column index of the given column name
Throws:: SQLException - if the ResultSet object does not contain columnName or a database access error occurs

getCharacterStream

Reader getCharacterStream(int columnIndex)
                          throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.io.Reader object.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: a java.io.Reader object that contains the column value; if the value is SQL NULL, the value returned is null in the Java programming language.
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getCharacterStream

Reader getCharacterStream(String columnName)
                          throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.io.Reader object.

Parameters:: columnName - the name of the column
Returns:: a java.io.Reader object that contains the column value; if the value is SQL NULL, the value returned is null in the Java programming language
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getBigDecimal

BigDecimal getBigDecimal(int columnIndex)
                         throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.math.BigDecimal with full precision.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Returns:: the column value (full precision); if the value is SQL NULL, the value returned is null in the Java programming language.
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getBigDecimal

BigDecimal getBigDecimal(String columnName)
                         throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.math.BigDecimal with full precision.

Parameters:: columnName - the column name
Returns:: the column value (full precision); if the value is SQL NULL, the value returned is null in the Java programming language.
Throws:: SQLException - if a database access error occurs
Since:: 1.2

isBeforeFirst

boolean isBeforeFirst()
                      throws SQLException

Retrieves whether the cursor is before the first row in this ResultSet object.

Returns:: true if the cursor is before the first row; false if the cursor is at any other position or the result set contains no rows
Throws:: SQLException - if a database access error occurs
Since:: 1.2

isAfterLast

boolean isAfterLast()
                    throws SQLException

Retrieves whether the cursor is after the last row in this ResultSet object.

Returns:: true if the cursor is after the last row; false if the cursor is at any other position or the result set contains no rows
Throws:: SQLException - if a database access error occurs
Since:: 1.2

isFirst

boolean isFirst()
                throws SQLException

Retrieves whether the cursor is on the first row of this ResultSet object.

Returns:: true if the cursor is on the first row; false otherwise
Throws:: SQLException - if a database access error occurs
Since:: 1.2

isLast

boolean isLast()
               throws SQLException

Retrieves whether the cursor is on the last row of this ResultSet object. Note: Calling the method isLast may be expensive because the JDBC driver might need to fetch ahead one row in order to determine whether the current row is the last row in the result set.

Returns:: true if the cursor is on the last row; false otherwise
Throws:: SQLException - if a database access error occurs
Since:: 1.2

beforeFirst

void beforeFirst()
                 throws SQLException

Moves the cursor to the front of this ResultSet object, just before the first row. This method has no effect if the result set contains no rows.

Throws:: SQLException - if a database access error occurs or the result set type is TYPE_FORWARD_ONLY
Since:: 1.2

afterLast

void afterLast()
               throws SQLException

Moves the cursor to the end of this ResultSet object, just after the last row. This method has no effect if the result set contains no rows.

Throws:: SQLException - if a database access error occurs or the result set type is TYPE_FORWARD_ONLY
Since:: 1.2

first

boolean first()
              throws SQLException

Moves the cursor to the first row in this ResultSet object.

Returns:: true if the cursor is on a valid row; false if there are no rows in the result set
Throws:: SQLException - if a database access error occurs or the result set type is TYPE_FORWARD_ONLY
Since:: 1.2

last

boolean last()
             throws SQLException

Moves the cursor to the last row in this ResultSet object.

Returns:: true if the cursor is on a valid row; false if there are no rows in the result set
Throws:: SQLException - if a database access error occurs or the result set type is TYPE_FORWARD_ONLY
Since:: 1.2

getRow

int getRow()
           throws SQLException

Retrieves the current row number. The first row is number 1, the second number 2, and so on.

Returns:: the current row number; 0 if there is no current row
Throws:: SQLException - if a database access error occurs
Since:: 1.2

absolute

boolean absolute(int row)
                 throws SQLException

Moves the cursor to the given row number in this ResultSet object.

If the row number is positive, the cursor moves to the given row number with respect to the beginning of the result set. The first row is row 1, the second is row 2, and so on.

If the given row number is negative, the cursor moves to an absolute row position with respect to the end of the result set. For example, calling the method absolute(-1) positions the cursor on the last row; calling the method absolute(-2) moves the cursor to the next-to-last row, and so on.

An attempt to position the cursor beyond the first/last row in the result set leaves the cursor before the first row or after the last row.

Note: Calling absolute(1) is the same as calling first(). Calling absolute(-1) is the same as calling last().

Parameters:: row - the number of the row to which the cursor should move. A positive number indicates the row number counting from the beginning of the result set; a negative number indicates the row number counting from the end of the result set
Returns:: true if the cursor is on the result set; false otherwise
Throws:: SQLException - if a database access error occurs, or the result set type is TYPE_FORWARD_ONLY
Since:: 1.2

relative

boolean relative(int rows)
                 throws SQLException

Moves the cursor a relative number of rows, either positive or negative. Attempting to move beyond the first/last row in the result set positions the cursor before/after the the first/last row. Calling relative(0) is valid, but does not change the cursor position.

Note: Calling the method relative(1) is identical to calling the method next() and calling the method relative(-1) is identical to calling the method previous().

Parameters:: rows - an int specifying the number of rows to move from the current row; a positive number moves the cursor forward; a negative number moves the cursor backward
Returns:: true if the cursor is on a row; false otherwise
Throws:: SQLException - if a database access error occurs, there is no current row, or the result set type is TYPE_FORWARD_ONLY
Since:: 1.2

boolean previous()
                 throws SQLException

Moves the cursor to the previous row in this ResultSet object.

Returns:: true if the cursor is on a valid row; false if it is off the result set
Throws:: SQLException - if a database access error occurs or the result set type is TYPE_FORWARD_ONLY
Since:: 1.2

setFetchDirection

void setFetchDirection(int direction)
                       throws SQLException

Gives a hint as to the direction in which the rows in this ResultSet object will be processed. The initial value is determined by the Statement object that produced this ResultSet object. The fetch direction may be changed at any time.

Parameters:: direction - an int specifying the suggested fetch direction; one of ResultSet.FETCH_FORWARD, ResultSet.FETCH_REVERSE, or ResultSet.FETCH_UNKNOWN
Throws:: SQLException - if a database access error occurs or the result set type is TYPE_FORWARD_ONLY and the fetch direction is not FETCH_FORWARD
Since:: 1.2
See Also:: Statement.setFetchDirection(int), getFetchDirection()

getFetchDirection

int getFetchDirection()
                      throws SQLException

Retrieves the fetch direction for this ResultSet object.

Returns:: the current fetch direction for this ResultSet object
Throws:: SQLException - if a database access error occurs
Since:: 1.2
See Also:: setFetchDirection(int)

setFetchSize

void setFetchSize(int rows)
                  throws SQLException

Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed for this ResultSet object. If the fetch size specified is zero, the JDBC driver ignores the value and is free to make its own best guess as to what the fetch size should be. The default value is set by the Statement object that created the result set. The fetch size may be changed at any time.

Parameters:: rows - the number of rows to fetch
Throws:: SQLException - if a database access error occurs or the condition 0 <= rows <= Statement.getMaxRows() is not satisfied
Since:: 1.2
See Also:: getFetchSize()

getFetchSize

int getFetchSize()
                 throws SQLException

Retrieves the fetch size for this ResultSet object.

Returns:: the current fetch size for this ResultSet object
Throws:: SQLException - if a database access error occurs
Since:: 1.2
See Also:: setFetchSize(int)

getType

int getType()
            throws SQLException

Retrieves the type of this ResultSet object. The type is determined by the Statement object that created the result set.

Returns:: ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getConcurrency

int getConcurrency()
                   throws SQLException

Retrieves the concurrency mode of this ResultSet object. The concurrency used is determined by the Statement object that created the result set.

Returns:: the concurrency type, either ResultSet.CONCUR_READ_ONLY or ResultSet.CONCUR_UPDATABLE
Throws:: SQLException - if a database access error occurs
Since:: 1.2

rowUpdated

boolean rowUpdated()
                   throws SQLException

Retrieves whether the current row has been updated. The value returned depends on whether or not the result set can detect updates.

Returns:: true if both (1) the row has been visibly updated by the owner or another and (2) updates are detected
Throws:: SQLException - if a database access error occurs
Since:: 1.2
See Also:: DatabaseMetaData.updatesAreDetected(int)

rowInserted

boolean rowInserted()
                    throws SQLException

Retrieves whether the current row has had an insertion. The value returned depends on whether or not this ResultSet object can detect visible inserts.

Returns:: true if a row has had an insertion and insertions are detected; false otherwise
Throws:: SQLException - if a database access error occurs
Since:: 1.2
See Also:: DatabaseMetaData.insertsAreDetected(int)

rowDeleted

boolean rowDeleted()
                   throws SQLException

Retrieves whether a row has been deleted. A deleted row may leave a visible "hole" in a result set. This method can be used to detect holes in a result set. The value returned depends on whether or not this ResultSet object can detect deletions.

Returns:: true if a row was deleted and deletions are detected; false otherwise
Throws:: SQLException - if a database access error occurs
Since:: 1.2
See Also:: DatabaseMetaData.deletesAreDetected(int)

updateNull

void updateNull(int columnIndex)
                throws SQLException

Gives a nullable column a null value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateBoolean

void updateBoolean(int columnIndex,
                   boolean x)
                   throws SQLException

Updates the designated column with a boolean value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateByte

void updateByte(int columnIndex,
                byte x)
                throws SQLException

Updates the designated column with a byte value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateShort

void updateShort(int columnIndex,
                 short x)
                 throws SQLException

Updates the designated column with a short value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateInt

void updateInt(int columnIndex,
               int x)
               throws SQLException

Updates the designated column with an int value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateLong

void updateLong(int columnIndex,
                long x)
                throws SQLException

Updates the designated column with a long value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateFloat

void updateFloat(int columnIndex,
                 float x)
                 throws SQLException

Updates the designated column with a float value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateDouble

void updateDouble(int columnIndex,
                  double x)
                  throws SQLException

Updates the designated column with a double value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateBigDecimal

void updateBigDecimal(int columnIndex,
                      BigDecimal x)
                      throws SQLException

Updates the designated column with a java.math.BigDecimal value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateString

void updateString(int columnIndex,
                  String x)
                  throws SQLException

Updates the designated column with a String value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateBytes

void updateBytes(int columnIndex,
                 byte[] x)
                 throws SQLException

Updates the designated column with a byte array value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateDate

void updateDate(int columnIndex,
                Date x)
                throws SQLException

Updates the designated column with a java.sql.Date value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateTime

void updateTime(int columnIndex,
                Time x)
                throws SQLException

Updates the designated column with a java.sql.Time value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateTimestamp

void updateTimestamp(int columnIndex,
                     Timestamp x)
                     throws SQLException

Updates the designated column with a java.sql.Timestamp value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateAsciiStream

void updateAsciiStream(int columnIndex,
                       InputStream x,
                       int length)
                       throws SQLException

Updates the designated column with an ascii stream value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value; length - the length of the stream
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateBinaryStream

void updateBinaryStream(int columnIndex,
                        InputStream x,
                        int length)
                        throws SQLException

Updates the designated column with a binary stream value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value; length - the length of the stream
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateCharacterStream

void updateCharacterStream(int columnIndex,
                           Reader x,
                           int length)
                           throws SQLException

Updates the designated column with a character stream value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value; length - the length of the stream
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateObject

void updateObject(int columnIndex,
                  Object x,
                  int scale)
                  throws SQLException

Updates the designated column with an Object value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value; scale - for java.sql.Types.DECIMA or java.sql.Types.NUMERIC types, this is the number of digits after the decimal point. For all other types this value will be ignored.
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateObject

void updateObject(int columnIndex,
                  Object x)
                  throws SQLException

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateNull

void updateNull(String columnName)
                throws SQLException

Updates the designated column with a null value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnName - the name of the column
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateBoolean

void updateBoolean(String columnName,
                   boolean x)
                   throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateByte

void updateByte(String columnName,
                byte x)
                throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateShort

void updateShort(String columnName,
                 short x)
                 throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateInt

void updateInt(String columnName,
               int x)
               throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateLong

void updateLong(String columnName,
                long x)
                throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateFloat

void updateFloat(String columnName,
                 float x)
                 throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateDouble

void updateDouble(String columnName,
                  double x)
                  throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateBigDecimal

void updateBigDecimal(String columnName,
                      BigDecimal x)
                      throws SQLException

Updates the designated column with a java.sql.BigDecimal value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateString

void updateString(String columnName,
                  String x)
                  throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateBytes

void updateBytes(String columnName,
                 byte[] x)
                 throws SQLException

Updates the designated column with a byte array value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateDate

void updateDate(String columnName,
                Date x)
                throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateTime

void updateTime(String columnName,
                Time x)
                throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateTimestamp

void updateTimestamp(String columnName,
                     Timestamp x)
                     throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateAsciiStream

void updateAsciiStream(String columnName,
                       InputStream x,
                       int length)
                       throws SQLException

Parameters:: columnName - the name of the column; x - the new column value; length - the length of the stream
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateBinaryStream

void updateBinaryStream(String columnName,
                        InputStream x,
                        int length)
                        throws SQLException

Parameters:: columnName - the name of the column; x - the new column value; length - the length of the stream
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateCharacterStream

void updateCharacterStream(String columnName,
                           Reader reader,
                           int length)
                           throws SQLException

Parameters:: columnName - the name of the column; reader - the java.io.Reader object containing the new column value; length - the length of the stream
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateObject

void updateObject(String columnName,
                  Object x,
                  int scale)
                  throws SQLException

Parameters:: columnName - the name of the column; x - the new column value; scale - for java.sql.Types.DECIMAL or java.sql.Types.NUMERIC types, this is the number of digits after the decimal point. For all other types this value will be ignored.
Throws:: SQLException - if a database access error occurs
Since:: 1.2

updateObject

void updateObject(String columnName,
                  Object x)
                  throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

insertRow

void insertRow()
               throws SQLException

Inserts the contents of the insert row into this ResultSet object and into the database. The cursor must be on the insert row when this method is called.

Throws:: SQLException - if a database access error occurs, if this method is called when the cursor is not on the insert row, or if not all of non-nullable columns in the insert row have been given a value
Since:: 1.2

updateRow

void updateRow()
               throws SQLException

Updates the underlying database with the new contents of the current row of this ResultSet object. This method cannot be called when the cursor is on the insert row.

Throws:: SQLException - if a database access error occurs or if this method is called when the cursor is on the insert row
Since:: 1.2

deleteRow

void deleteRow()
               throws SQLException

Deletes the current row from this ResultSet object and from the underlying database. This method cannot be called when the cursor is on the insert row.

Throws:: SQLException - if a database access error occurs or if this method is called when the cursor is on the insert row
Since:: 1.2

refreshRow

void refreshRow()
                throws SQLException

Refreshes the current row with its most recent value in the database. This method cannot be called when the cursor is on the insert row.

The refreshRow method provides a way for an application to explicitly tell the JDBC driver to refetch a row(s) from the database. An application may want to call refreshRow when caching or prefetching is being done by the JDBC driver to fetch the latest value of a row from the database. The JDBC driver may actually refresh multiple rows at once if the fetch size is greater than one.

All values are refetched subject to the transaction isolation level and cursor sensitivity. If refreshRow is called after calling an updater method, but before calling the method updateRow, then the updates made to the row are lost. Calling the method refreshRow frequently will likely slow performance.

Throws:: SQLException - if a database access error occurs or if this method is called when the cursor is on the insert row
Since:: 1.2

cancelRowUpdates

void cancelRowUpdates()
                      throws SQLException

Cancels the updates made to the current row in this ResultSet object. This method may be called after calling an updater method(s) and before calling the method updateRow to roll back the updates made to a row. If no updates have been made or updateRow has already been called, this method has no effect.

Throws:: SQLException - if a database access error occurs or if this method is called when the cursor is on the insert row
Since:: 1.2

moveToInsertRow

void moveToInsertRow()
                     throws SQLException

Moves the cursor to the insert row. The current cursor position is remembered while the cursor is positioned on the insert row. The insert row is a special row associated with an updatable result set. It is essentially a buffer where a new row may be constructed by calling the updater methods prior to inserting the row into the result set. Only the updater, getter, and insertRow methods may be called when the cursor is on the insert row. All of the columns in a result set must be given a value each time this method is called before calling insertRow. An updater method must be called before a getter method can be called on a column value.

Throws:: SQLException - if a database access error occurs or the result set is not updatable
Since:: 1.2

moveToCurrentRow

void moveToCurrentRow()
                      throws SQLException

Moves the cursor to the remembered cursor position, usually the current row. This method has no effect if the cursor is not on the insert row.

Throws:: SQLException - if a database access error occurs or the result set is not updatable
Since:: 1.2

getStatement

Statement getStatement()
                       throws SQLException

Retrieves the Statement object that produced this ResultSet object. If the result set was generated some other way, such as by a DatabaseMetaData method, this method returns null.

Returns:: the Statment object that produced this ResultSet object or null if the result set was produced some other way
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getObject

Object getObject(int i,
                 Map<String,Class<?>> map)
                 throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language. If the value is an SQL NULL, the driver returns a Java null. This method uses the given Map object for the custom mapping of the SQL structured or distinct type that is being retrieved.

Parameters:: i - the first column is 1, the second is 2, ...; map - a java.util.Map object that contains the mapping from SQL type names to classes in the Java programming language
Returns:: an Object in the Java programming language representing the SQL value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getRef

Ref getRef(int i)
           throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a Ref object in the Java programming language.

Parameters:: i - the first column is 1, the second is 2, ...
Returns:: a Ref object representing an SQL REF value
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getBlob

Blob getBlob(int i)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a Blob object in the Java programming language.

Parameters:: i - the first column is 1, the second is 2, ...
Returns:: a Blob object representing the SQL BLOB value in the specified column
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getClob

Clob getClob(int i)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a Clob object in the Java programming language.

Parameters:: i - the first column is 1, the second is 2, ...
Returns:: a Clob object representing the SQL CLOB value in the specified column
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getArray

Array getArray(int i)
               throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as an Array object in the Java programming language.

Parameters:: i - the first column is 1, the second is 2, ...
Returns:: an Array object representing the SQL ARRAY value in the specified column
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getObject

Object getObject(String colName,
                 Map<String,Class<?>> map)
                 throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language. If the value is an SQL NULL, the driver returns a Java null. This method uses the specified Map object for custom mapping if appropriate.

Parameters:: colName - the name of the column from which to retrieve the value; map - a java.util.Map object that contains the mapping from SQL type names to classes in the Java programming language
Returns:: an Object representing the SQL value in the specified column
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getRef

Ref getRef(String colName)
           throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a Ref object in the Java programming language.

Parameters:: colName - the column name
Returns:: a Ref object representing the SQL REF value in the specified column
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getBlob

Blob getBlob(String colName)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a Blob object in the Java programming language.

Parameters:: colName - the name of the column from which to retrieve the value
Returns:: a Blob object representing the SQL BLOB value in the specified column
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getClob

Clob getClob(String colName)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a Clob object in the Java programming language.

Parameters:: colName - the name of the column from which to retrieve the value
Returns:: a Clob object representing the SQL CLOB value in the specified column
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getArray

Array getArray(String colName)
               throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as an Array object in the Java programming language.

Parameters:: colName - the name of the column from which to retrieve the value
Returns:: an Array object representing the SQL ARRAY value in the specified column
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getDate

Date getDate(int columnIndex,
             Calendar cal)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Date object in the Java programming language. This method uses the given calendar to construct an appropriate millisecond value for the date if the underlying database does not store timezone information.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; cal - the java.util.Calendar object to use in constructing the date
Returns:: the column value as a java.sql.Date object; if the value is SQL NULL, the value returned is null in the Java programming language
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getDate

Date getDate(String columnName,
             Calendar cal)
             throws SQLException

Parameters:: columnName - the SQL name of the column from which to retrieve the value; cal - the java.util.Calendar object to use in constructing the date
Returns:: the column value as a java.sql.Date object; if the value is SQL NULL, the value returned is null in the Java programming language
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getTime

Time getTime(int columnIndex,
             Calendar cal)
             throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Time object in the Java programming language. This method uses the given calendar to construct an appropriate millisecond value for the time if the underlying database does not store timezone information.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; cal - the java.util.Calendar object to use in constructing the time
Returns:: the column value as a java.sql.Time object; if the value is SQL NULL, the value returned is null in the Java programming language
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getTime

Time getTime(String columnName,
             Calendar cal)
             throws SQLException

Parameters:: columnName - the SQL name of the column; cal - the java.util.Calendar object to use in constructing the time
Returns:: the column value as a java.sql.Time object; if the value is SQL NULL, the value returned is null in the Java programming language
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getTimestamp

Timestamp getTimestamp(int columnIndex,
                       Calendar cal)
                       throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object in the Java programming language. This method uses the given calendar to construct an appropriate millisecond value for the timestamp if the underlying database does not store timezone information.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; cal - the java.util.Calendar object to use in constructing the timestamp
Returns:: the column value as a java.sql.Timestamp object; if the value is SQL NULL, the value returned is null in the Java programming language
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getTimestamp

Timestamp getTimestamp(String columnName,
                       Calendar cal)
                       throws SQLException

Parameters:: columnName - the SQL name of the column; cal - the java.util.Calendar object to use in constructing the date
Returns:: the column value as a java.sql.Timestamp object; if the value is SQL NULL, the value returned is null in the Java programming language
Throws:: SQLException - if a database access error occurs
Since:: 1.2

getURL

URL getURL(int columnIndex)
           throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.net.URL object in the Java programming language.

Parameters:: columnIndex - the index of the column 1 is the first, 2 is the second,...
Returns:: the column value as a java.net.URL object; if the value is SQL NULL, the value returned is null in the Java programming language
Throws:: SQLException - if a database access error occurs, or if a URL is malformed
Since:: 1.4

getURL

URL getURL(String columnName)
           throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a java.net.URL object in the Java programming language.

Parameters:: columnName - the SQL name of the column
Returns:: the column value as a java.net.URL object; if the value is SQL NULL, the value returned is null in the Java programming language
Throws:: SQLException - if a database access error occurs or if a URL is malformed
Since:: 1.4

updateRef

void updateRef(int columnIndex,
               Ref x)
               throws SQLException

Updates the designated column with a java.sql.Ref value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.4

updateRef

void updateRef(String columnName,
               Ref x)
               throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.4

updateBlob

void updateBlob(int columnIndex,
                Blob x)
                throws SQLException

Updates the designated column with a java.sql.Blob value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.4

updateBlob

void updateBlob(String columnName,
                Blob x)
                throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.4

updateClob

void updateClob(int columnIndex,
                Clob x)
                throws SQLException

Updates the designated column with a java.sql.Clob value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.4

updateClob

void updateClob(String columnName,
                Clob x)
                throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.4

updateArray

void updateArray(int columnIndex,
                 Array x)
                 throws SQLException

Updates the designated column with a java.sql.Array value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead the updateRow or insertRow methods are called to update the database.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.4

updateArray

void updateArray(String columnName,
                 Array x)
                 throws SQLException

Parameters:: columnName - the name of the column; x - the new column value
Throws:: SQLException - if a database access error occurs
Since:: 1.4

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

ResultSet (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

java.sql Interface ResultSet

FETCH_FORWARD

FETCH_REVERSE

FETCH_UNKNOWN

TYPE_FORWARD_ONLY

TYPE_SCROLL_INSENSITIVE

TYPE_SCROLL_SENSITIVE

CONCUR_READ_ONLY

CONCUR_UPDATABLE

HOLD_CURSORS_OVER_COMMIT

CLOSE_CURSORS_AT_COMMIT

next

close

wasNull

getString

getBoolean

getByte

getShort

getInt

getLong

getFloat

getDouble

getBigDecimal

getBytes

getDate

getTime

getTimestamp

getAsciiStream

getUnicodeStream

getBinaryStream

getString

getBoolean

getByte

getShort

getInt

getLong

getFloat

getDouble

getBigDecimal

getBytes

getDate

getTime

getTimestamp

getAsciiStream

getUnicodeStream

getBinaryStream

getWarnings

clearWarnings

getCursorName

getMetaData

getObject

getObject

findColumn

getCharacterStream

getCharacterStream

getBigDecimal

getBigDecimal

isBeforeFirst

isAfterLast

isFirst

isLast

beforeFirst

afterLast

first

last

getRow

absolute

relative

previous

setFetchDirection

getFetchDirection

setFetchSize

getFetchSize

getType

getConcurrency

rowUpdated

rowInserted

rowDeleted

updateNull

java.sql
Interface ResultSet