Re: Need info on Triggers

PKA wrote:

> for all columns. for ex: I need to capture updates for column x, but not
> for columns y & Z. I also need to capture deletes from the table.
> I know that i have to write a trigger to capture changes to the table.
> my question is wether one trigger is enough to capture changes to
> various columns or i need one trigger each to capture changes.
> please advise. any additional input on triggers is welcome

  You can use a single trigger like
  ON delete or update on x,y,z

  if deleting then ...
  if updating then ...

     if :new.x <> :new.y then ...

---
Name   : Lun Wing San
Title  : Oracle Application Developer of Hong Kong Productivity Council
         Oracle Database Administrator and System Administrator of QRC
Phone  : (852)27885841

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