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Trigger to populate name field with uppercased and rtrimmed version of user entry

I wish to create an Oracle insert/update trigger to populate a name field in my table with an uppercased and rtrimmed version of the name supplied by the user. This is the trigger I have that does not work:

create or replace trigger userNameTrigger
after insert or update of fname, lname on users
for each row

begin
	-- save 'standardized' name
	ufname = rtrim(upper(fname));
	ulname = rtrim(upper(lname));
end;
/
commit

Can you help?
 

Write something like this:

create or replace trigger userNameTrigger
before insert or update on users
for each row
begin
     IF inserting or (UPDATING and (:new.fname <> :old.fname OR :new.lname 
<> :old.fname)) then
	-- save 'standardized' name
	:new.ufname := rtrim(upper(:new.fname));
	:new.ulname := rtrim(upper(:new.lname));
     END IF;
end;
/

This should work. Note that commit is forbidden inside the trigger definition, so you should put the commit after it in the following script.

 

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