The error occurs because CALL SYSPROC.ADMIN_CMD is a "forbidden statement" within compound SQL blocks in DB2 LUW 11.5. This restriction ensures transactional integrity, as ADMIN_CMD performs high-privilege operations.

Solutions:

1.Move Outside Block: Run CALL SYSPROC.ADMIN_CMD before or after the compound SQL block. sql code : CALL SYSPROC.ADMIN_CMD('REORG TABLE my_table'); BEGIN ATOMIC -- Other operations END;

2.Use a Wrapper Procedure: Encapsulate ADMIN_CMD in a stored procedure and call it separately. sql code : CREATE PROCEDURE RUN_REORG() BEGIN CALL SYSPROC.ADMIN_CMD('REORG TABLE my_table'); END; CALL RUN_REORG();

3.Transactional Separation: Keep ADMIN_CMD in standalone transactions for conflict-free execution.

For in-depth guidance on DB2 performance tuning and advanced SQL concepts, explore the DB2 LUW Administrator Course at VTUIT.COM.