Hi vaniram,

I am also faced same problem. But I have solved the problem very easily. by default DEF$_AQCALL will reside in system tablespace. This will grow very fast.
just move the table to another tablespace.
frequently you have truncate the table.

If you are not able to do the above things plz let me know I will forward you the commands.

My id is [email protected] or [email protected]

Regards,

G.Shankar.