Db2 transaction manager support

Db2 supports a wide range of transaction manager products to coordinate updates across a distributed transaction. A distributed transaction typically involves multiple recoverable resources, such as Db2 tables, IBM® MQ messages, and IMS databases.

Application environments that use Db2 Connect to access Db2 remotely can use the following transaction manager products:

• WebSphere® Application Server
• CICS®
• IBM TXSeries® (CICS and Encina)
• IBM MQ
• Microsoft Transaction Server (MTS)
• Java™ applications that support Java Transaction API (JTA) and Enterprise JavaBeans (EJBs)
• BEA (Tuxedo and WebLogic)
• Other transaction manager products that support standard XA protocols

  The XA interface is a bidirectional interface between a transaction manager and resource managers that provides coordinated updates across a distributed transaction. The Open Group defined XA protocols based on the specification Distributed TP: The XA Specification.

Application environments that access Db2 locally can use the following transaction manager products:

• WebSphere Application Server
• CICS transaction server
• IMS

For application environments that do not use a transaction manager, Db2 coordinates updates across a distributed transaction by using DRDA-protected connections.