create/remove row permission in IBM i (as400) SQL

Question

In Db2 for IBM i, I can create row permission like this.

-- enable row access control
ALTER TABLE QIWS.QCUSTCDT ACTIVATE ROW ACCESS CONTROL;

-- create permission MYPERMISSION999
CREATE PERMISSION MYPERMISSION999 ON SALES.ORDHED
FOR ROWS WHERE VERIFY_GROUP_FOR_USER(SESSION_USER,'MYGROUP') = 1
               AND SCODE = SESSION_USER                  
ENFORCED FOR ALL ACCESS

ENABLE;
COMMIT;
ALTER TABLE SALES.ORDHED ACTIVATE ROW ACCESS CONTROL;
COMMIT;

If I Deactivate row access control, rules seem to go away, but if I ACTIVATE old rules come back.

 ALTER TABLE SALES.ORDHED           
     DEACTIVATE ROW ACCESS CONTROL        

Answer 1

DROP PERMISSION MYPERMISSION999;

Should do it