Support for DB2 Universal JDBC Driver in WebSphere Application Server for z/OS release v5.0 and beyond.
WebSphere Application Server for z/OS supports the DB2 Universal JDBC Driver. The capabilities available depend on the DB2 Universal JDBC Driver that you installed as follows:
When you install and configure this driver for WebSphere Application Server for z/OS, it permits your applications to use JDBC or Container Managed Persistence (CMP) support to access backend DB2 databases (DB2 V7 and up) residing on z/OS at any location. All global transactions are handled as J2EE XA transactions.
Type 4 driver support uses a communication protocol to communicate requests from a z/OS application to a remote DB2 database. This driver supports using J2EE XA transaction processing to process global transactions.
Type 2 driver support uses local API protocol to communicate requests from a z/OS application to a target DB2 running on the same z/OS system image as the application. When the Type 2 driver is used under z/OS, the driver supports the use of z/OS Resource Recovery Services (RRS) to coordinate global transactions across multiple resource manages using 2-phase commit processing.
When you install and configure this version of the driver, your applications can use JDBC or CMP support to access backend DB2 databases (DB2 V7 and up). These databases can reside on the same z/OS system image, or on a different z/OS system image. depending on the driver type used. Type 2 driver handles all global transactions as RRS-coordinated global transactions.
Type 4 driver support uses a communication protocol to communicate requests from a z/OS application to a remote DB2 database. This driver supports using J2EE XA transaction processing to process global transactions.
Type 2 driver support uses local API protocol to communicate requests from a z/OS application to a target DB2 running on the same z/OS system image as the application. When the Type 2 driver is used under z/OS, the driver supports the use of z/OS Resource Recovery Services (RRS) to coordinate global transactions across multiple resource manages using 2-phase commit processing.
When you install and configure this version of the driver, your applications can use JDBC or CMP support to access backend DB2 databases (DB2 V7 and up). These databases can reside on the same z/OS system image, or on a different z/OS system image, depending on the driver type used.