ORA-04091: table name is mutating, trigger/function may not see it

I got ” ORA-04091: table name is mutating, trigger/function may not see it ”  error in Oracle database.

ORA-04091: table name is mutating, trigger/function may not see it

Details of error are as follows.

ORA-04091: table name is mutating, trigger/function may not see it

 table name is mutating, trigger/function may not see it

When you create a trigger against a table, you can’t modify/query that table until the trigger/function has completed.

Remember that you can always use the :NEW and :OLD values within the trigger, depending on the type of trigger

you can solve the mutating table error, you should use a compound trigger

Or to avoid oracle mutating trigger table error is not to use the triggers.

To avoid this Mutating Trigger Table Error you can use the combination of statement-level triggers and row-level.

Do you want to learn Oracle Database for Beginners, then read the following articles.

Oracle Tutorial | Oracle Database Tutorials for Beginners ( Junior Oracle DBA )