plsqldeveloper

fire a trigger when on of my table column change

I have a table that it name is A . I need to add a trigger for before update and delete event but it should fire just after change a specific column of A , not all of columns. I add this code but it does not work Correctly and always fire from form of Oracle Apex while this is correct when edit date from Data Base in PL/SQL Developer , what can I do?

I use PL/SQL Developer Version 15.0.4.2064 (64 bit)

create or replace trigger A_PRE_UPD_DEL BEFORE UPDATE OF col_name OR DELETE ON A for each row

Solution

  • when you have a form in Oracle Apex and sumbit page , all columns in your page will send to server . so we pass this condition (UPDATE OF col_name) and trigger will be fired. if you want prevent firing this trigger you should manage it from your form Oracle Apex.