Sources that Db2 checks to find authorization access for an application program

Db2 checks multiple sources to find authorization access for an application program.

Db2 checks the sources in the order that they are listed. If the first source is unavailable, Db2 checks the second source, and so on.

1. RACF® USER parameter supplied at logon
2. TSO logon user ID
3. Site-chosen default authorization ID
4. IBM®-supplied default authorization ID

You can modify either the RACF USER parameter or the TSO user ID by a locally defined authorization exit routine.