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Tip of the Day
Language: SQL
Expertise: Intermediate
Dec 5, 2005



Application Security Testing: An Integral Part of DevOps

Determine the Type of Modifcation Operation on a Table

Sometimes, when you're working with PL/SQL trigger code, you need to determine the type of modification operation that's been performed on the 'triggered' table. You can do this using the INSERTING, DELETING and UPDATING trigger predicates. The following code demonstrates, using the trigger Tr on table Ta:

create or replace trigger Tr
  after insert or delete or update on Ta -- don't forget this line
  for each row
  if deleting then     
    -- some code  
  end if;
  if inserting then
    -- some code
  end if;
  if updating then
    -- some code
  end if;
end Tr;
Sachin Kainth
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