8. Understanding JDBC Connectivity : JDBC Components : JDBC Driver
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JDBC Driver
The JDBC Driver is a pure Java implementation of the JDBC 4.2 API released with Oracle Java Platform SE 8. The driver supports application, applet, and servlet access to Vector data sources through the Data Access Server.
The JDBC Driver supports the following JDBC features.
JDBC 4.2 features:
Long (eight-byte) row counts – method variants with 'Large' in method name.
Method variants that utilize the SQLType class.
LocalDate, LocalTime, LocalDateTime, OffsetTime, OffsetDateTime classes.
TIME_WITH_TIMEZONE and TIMESTAMP_WITH_TIMEZONE. Vector supports corresponding types; the driver prior to 4.2 identified these types as TIME and TIMESTAMP types. For backward compatibility, the driver continues to identify the Vector types as TIME/TIMESTAMP and return Time/Timestamp objects. The new types are supported as aliases for TIME and TIMESTAMP.
JDBC 4.1 features:
Connection.getNetworkTimeout() and Connection.setNetworkTimeout()
Statement.isCloseOnCompletion() and Statement.closeOnCompletion()
CallableStatement.getObject( int, Class<T> ) and CallableStatement.getObject( String, Class<T> )
ResultSet.getObject( int, Class<T> ) and ResultSet.getObject( String, Class<T> )
JDBC 4.0 features:
Auto-loading of the driver
National Character Set Support
Support for createBlob(), createClob(), and createNClob Methods
Support for java.sql.Wrapper Interface
JDBC 3.0 features:
Updatable ResultSets
Scrollable ResultSets
Transaction savepoints
Named procedure parameters
Auto-generated keys
Parameter metadata
Blob and clob data objects
The JDBC Driver is delivered as a single Java archive file, named iijdbc.jar, located in the library directory (lib) of the Vector instance. Depending on the Java environment used, access to the driver requires adding the Java archive to the CLASSPATH environment setting or as a resource in the appropriate utility. For browser/applet access, the Java archive must be copied to the Web Server directories.