Is mutating trigger function may not see I?

Is mutating trigger function may not see I?

The Oracle mutating trigger error occurs when a trigger references the table that owns the trigger, resulting in the “ORA-04091: table name is mutating, trigger/function may not see it.” message. Don’t use triggers – The best way to avoid the mutating table error is not to use triggers.

How do I fix mutating trigger error?

Fixing the mutating table error

1. First, declare an array of customer record that includes customer id and credit limit.
2. Second, collect affected rows into the array in the row-level trigger.
3. Third, update each affected row in the statement-level trigger.

What is mutating error in Oracle trigger?

A mutating table error (ORA-04091) occurs when a row-level trigger tries to examine or change a table that is already undergoing change (via an INSERT, UPDATE, or DELETE statement). In particular, this error occurs when a row-level trigger attempts to read or write the table from which the trigger was fired.

What is a mutating table in Oracle?

A mutating table is a table that is currently being modified by an UPDATE, DELETE, or INSERT statement, or it is a table that might need to be updated by the effects of a declarative DELETE CASCADE referential integrity constraint.

Why do I get an oracle mutating trigger error?

The Oracle mutating trigger error occurs when a trigger references the table that owns the trigger, resulting in the “ORA-04091: table name is mutating, trigger/function may not see it.” message. Don’t use triggers – The best way to avoid the mutating table error is not to use triggers.

How to tell if Oracle table is mutating?

Oracle gives me error: ORA-04091: table SYSTEM2.DETAILRENTAL is mutating, trigger/function may not see it ORA-06512: at “SYSTEM2.TRG_VIDEORENTAL_UP”, line 3 ORA-04088: error during execution of trigger ‘SYSTEM2.TRG_VIDEORENTAL_UP’ 1. UPDATE DETAILRENTAL 2.

How to resolve ora-04091 trigger may not see it?

I am getting “ORA-04091: table is mutating, trigger/function may not see it” in my trigger. Trigger is created. Please let me know how to resolve this. and we said… You can’t query the table that caused a trigger to fire inside the trigger itself. But in this case, I don’t see any need to.

When is trigger / function may not see it?

ORA-04091: table SYSTEM2.DETAILRENTAL is mutating, trigger/function may not see it ORA-06512: at “SYSTEM2.TRG_VIDEORENTAL_UP”, line 3 ORA-04088: error during execution of trigger ‘SYSTEM2.TRG_VIDEORENTAL_UP’ 1. UPDATE DETAILRENTAL 2. SET DETAIL_RETURNDATE = null 3. WHERE RENT_NUM = 1006 AND VID_NUM = 61367