Subsequent buffer information for DRDA traces

You can analyze subsequent send and receive buffers for additional information.

If the next request contains a commit, the commit command instructs the IBM mainframe database server management system to commit the current unit of work. The fourth buffer is received from the IBM mainframe database server database management system as a result of a commit or rollback. It contains the End Unit of Work Reply Message (ENDUOWRM), which indicates that the current unit of work has ended.

In this example, trace entry 12 contains a null SQLCA, indicated by DDM code point X'2408' followed by X'FF'. A null SQLCA (X'2408FF') indicates success (SQLCODE 0).

Figure 1 shows an example of a receive buffer containing an error SQLCA at trace entry 16.