NClob (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档
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Java™ Platform Standard Ed. 6 |
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java.sql
Interface NClob
- All Superinterfaces:
- Clob
public interface NClob
- extends Clob
The mapping in the JavaTM programming language
for the SQL NCLOB type.
An SQL NCLOB is a built-in type
that stores a Character Large Object using the National Character Set
as a column value in a row of a database table.
The NClob interface extends the Clob interface
which provides provides methods for getting the
length of an SQL NCLOB value,
for materializing a NCLOB value on the client, and for
searching for a substring or NCLOB object within a
NCLOB value. A NClob object, just like a Clob object, is valid for the duration
of the transaction in which it was created.
Methods in the interfaces ResultSet,
CallableStatement, and PreparedStatement, such as
getNClob and setNClob allow a programmer to
access an SQL NCLOB value. In addition, this interface
has methods for updating a NCLOB value.
All methods on the NClob interface must be fully implemented if the
JDBC driver supports the data type.
- Since:
- 1.6
| Method Summary |
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| Methods inherited from interface java.sql.Clob |
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free, getAsciiStream, getCharacterStream, getCharacterStream, getSubString, length, position, position, setAsciiStream, setCharacterStream, setString, setString, truncate |
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Java™ Platform Standard Ed. 6 |
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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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