Dynamic SQL question

  • From: "Deanna Schneider" <deanna.schneider@xxxxxxxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 19 Mar 2004 15:27:54 -0600

Hello,
I'm trying to write a procedure that includes dynamic sql (8.17). If I don't
use the dynamic sql, the query runs fine. If I do, it fails with a numeric
or value error (ORA-06512).

Can anyone see what I'm missing?
This works:
UPDATE resourcegroup
    SET lft = DECODE( (SIGN((lft/drop_left)-1) + SIGN((lft/drop_right)-1)),
0, lft-1, 2, lft-2, lft),
        rgt = DECODE( (SIGN((rgt/drop_left)-1) + SIGN((rgt/drop_right)-1)),
0, rgt-1, 2, rgt-2, lft)
WHERE lft > drop_left;


This fails:
v_update := 'UPDATE '|| in_tablename ||
            'SET lft = DECODE( (SIGN((lft/:1)-1) + SIGN((lft/:2)-1)), 0,
lft-1, 2, lft-2, lft), '||
            'rgt = DECODE( (SIGN((rgt/:3)-1) + SIGN((rgt/:4)-1)), 0, rgt-1,
2, rgt-2, lft) ' ||
            'WHERE lft > :5';

EXECUTE IMMEDIATE v_update USING drop_left, drop_right, drop_left,
drop_right, drop_left;

I'm just using the linewrap concantenation for use of readability for
testing. It fails when it's all on one line as well.

Thanks.
-Deanna


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