Trigger problem @ Execution

Hi,
When I compile a trigger, it shows no errors. But at the time of execution it throws up the following error message. What could be wrong?

ORA-04091: table dbname.table1 is mutating, trigger/function may not see it
ORA-04088: error during execution of trigger 'dbname.trgA'

regards,
David. Received on Sun Nov 18 2001 - 23:06:54 CST