# JDBC 3.0 features

JDBC 3.0 adds some functionality to the core API. This section documents the features supported by Derby.
Note: These features are present only in a Java 2 version 1.4 or higher environment.
These features are:

- New DatabaseMetaData methods. See java.sql.DatabaseMetaData interface: supported JDBC 3.0 methods.
- Retrieval of parameter metadata. See java.sql.ParameterMetaData interface: supported JDBC 3.0 methods and java.sql.PreparedStatement interface: supported JDBC 3.0 methods.
- Retrieval of auto-generated keys. See java.sql.Statement interface: supported JDBC 3.0 methods and java.sql.DatabaseMetaData interface: supported JDBC 3.0 methods.
- Savepoints. See java.sql.Savepoint interface and java.sql.Connection interface: supported JDBC 3.0 methods.
- HOLD Cursors. See java.sql.DatabaseMetaData interface: supported JDBC 3.0 methods.

- java.sql.Connection interface: supported JDBC 3.0 methods
- java.sql.DatabaseMetaData interface: supported JDBC 3.0 methods
- java.sql.ParameterMetaData interface: supported JDBC 3.0 methods
- java.sql.PreparedStatement interface: supported JDBC 3.0 methods
- java.sql.Savepoint interface
- java.sql.Statement interface: supported JDBC 3.0 methods

Parent topic: JDBC reference
Related concepts
Core JDBC java.sql classes, interfaces, and methods
Related reference
java.sql.Driver interface
java.sql.DriverManager.getConnection method
java.sql.Connection interface
java.sql.DatabaseMetaData interface
java.sql.Statement interface
java.sql.CallableStatement interface
java.sql.SQLException class
java.sql.PreparedStatement interface
java.sql.ResultSet interface
java.sql.ResultSetMetaData interface
java.sql.SQLWarning class
java.sql.SQLXML interface
Mapping of java.sql.Types to SQL types
JDBC 2.0 features
java.sql.BatchUpdateException class
JDBC Package for Connected Device Configuration/Foundation Profile (JSR169)
JDBC 4.0-only features
JDBC escape syntax