To read change data from Db2 logs, the user ID that you specify for database access must have SYSADM or DBADM authority.
As of PowerExchange 10.5, if the user has SYSADM authority, ensure that the user also has SELECT, INSERT, UPDATE, and DELETE permissions to the PowerExchange capture catalog in the source database. You can use the GRANT DATAACCESS statement to grant these permissions on the database to the user.
For more information, see the "Db2 CDC on Linux, UNIX, or Windows" chapter in the
PowerExchange CDC Guide for Linux, UNIX, and Windows