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POIn an Oracle trigger, can I assign new and old to a rowtype variable?
 

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  1. POIn an Oracle trigger, can I assign new and old to a rowtype variable?
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    <p>I've been tasked with implementing several trigger scripts, and I've got examples from coworkers to work from. In those, they use pl-sql conditionals for updating/inserting/deleting, along with gigantic insert statements (in another table). These insert statements do not vary other than whether the values are prefixed with new or old. I thought I would be clever and try to make mine a little more compact, using the following:</p> <pre><code>DECLARE vRow SATURN.SPRCMNT%ROWTYPE; BEGIN IF UPDATING THEN vRow := :NEW; ELSIF INSERTING THEN vRow := :NEW; ELSIF DELETING THEN vRow := :OLD; END IF; -- Not the real insert statement INSERT INTO blah (columns) VALUES (vRow.somecolumns); END; </code></pre> <p>I get the following back from the compile system:</p> <pre><code>10/13 PLS-00049: bad bind variable 'NEW' 13/13 PLS-00049: bad bind variable 'NEW' 16/13 PLS-00049: bad bind variable 'OLD' </code></pre> <p>Obviously it does not like this. Is there something that will achieve what I'm attempting? Are :new and :old just not true rowtypes? It seems dumb to repeat what is essentially the same code 3 times over, and yet I can't figure out a better way. Hell, I think I read that there's some hard limit on the size of triggers too. Any help appreciated.</p> <p>[Edit] Just a thought, is it possible to reference the UPDATING/INSERTING keywords somehow within a DECODE()?</p> <p>For instance, if I could do a DECODE(SOMETHINGVAR, UPDATING, :NEW.column, DELETING, :OLD.column) then I could set the value of each column in vRow with a single statement.</p> <p>I guess it'd be better to check DELETING first, and use the default for the other two.</p> <p>Is this possible?</p>
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    1. USJohn O
    1. USJohn O
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    1. PL
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    1. COYou can't do it - check answers in [this stack overflow thread](http://stackoverflow.com/questions/2337325/can-i-copy-old-and-new-pseudo-records-in-to-an-oracle-stored-procedure).
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      1. POIn an Oracle trigger, can I assign new and old to a rowtype variable?
      1. USPrzemyslaw Kruglej
    2. COIt seems that `DECODE(UPDATING...` doesn't work, however there is a workaround, look at this demo: http://www.sqlfiddle.com/#!4/8ad9e/1 it may help
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      1. POIn an Oracle trigger, can I assign new and old to a rowtype variable?
      1. USkrokodilko
 

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