Dynamic SQL question

From: Deanna Schneider <deanna.schneider_at_ces.uwex.edu>
Date: Fri, 19 Mar 2004 15:27:54 -0600
Message-ID: <039101c40df9$0b369200$9b2c6880@cets.local>

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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Received on Fri Mar 19 2004 - 15:20:45 CST