Oracle trigger inserting or updating
18-May-2020 18:04sal_diff); END; / keyword if you want the trigger to query or change the same table, because triggers can only do that after the initial changes are applied and the table is back in a consistent state.Because the trigger uses the clause, it might be executed multiple times, such as when updating or deleting multiple rows.Here's my trigger create or replace trigger update_or_insert berfore INSERT or UPDATE ON my_table for each row begin if inserting then :new. This statement can be used with any interactive tool, such as SQL*Plus or Enterprise Manager.The statements in the trigger body operate under the privilege domain of the trigger owner, not the privilege domain of the user issuing the triggering statement (this is similar to the privilege model for stored subprograms).0) DECLARE sal_diff number; BEGIN sal_diff := : NEW. SAL; dbms_output.put('Old salary: '
Triggers can be: Trigger names must be unique with respect to other triggers in the same schema.A column list cannot be specified for statement trigger fires again.