Installing Db2 transaction definitions

This section describes the guidelines for installing and discarding DB2TRAN definitions and the implications of interruptions in partial activity.

About this task

  • You cannot install more than one DB2TRAN for the same transaction, if you have given the full transaction ID in the DB2TRAN definition. If you have used a generic transaction ID with a wildcard character, you can install more than one DB2TRAN that potentially matches the transaction, but CICS® only uses the closest match (see Wildcard characters for transaction IDs).
  • A DB2TRAN that refers to a non-existent DB2ENTRY cannot be installed. The DB2ENTRY must be installed first.
  • Note that when DB2ENTRY and DB2TRAN definitions are defined in the same group, CICS installs the DB2ENTRY first at install time.
  • You can install a new DB2TRAN at any time, even when the CICS Db2® adapter is connected to Db2.
  • A DB2TRAN can be re-installed at any time, and can be discarded at any time.