SYSIBM.SYSTABAUTH is a DB2 system table which records the privileges that users/program hold on tables and views. We can use this table to find out the list of programs accessing a particular table and what action the program is performing on the table like SELECT, UPDATE, INSERT or DELETE. The below SQL query can be fired on SYSTABAUTH in order to get list of programs.
SELECT GRANTEE, SELECTAUTH, UPDATEAUTH, INSERTAUTH, DELETEAUTH FROM SYSIBM.SYSABAUTH WHERE GRANTEETYPE = ‘P’ AND TNAME = ‘TAB1’
The column SELECTAUTH, UPDATEAUTH, INSERTAUTH and DELETEAUTH represents SELECT, UPDATE, INSERT and DELETE authority respectively. In the WHERE clause we will add a GRANTEETYPE predicate as ‘P’ to make sure only program names are returned (and not the users). We can give the table name predicate for the TNAME column.