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Piece of cake.

UPDATE MYFILE SET
DEBIT = MAX(AMOUNT,0),
CREDIT = MIN(AMOUNT,0)

Your amount field is still intact, but your two new fields have either zero or the appropriate amount (plus or minus).

Joe
I have a rather tricky problem that I think could best be solved with an appropriate SQL statement. In my general ledger transaction file I have a field for the amount. What I really want are two fields: one for debits and one for credits. While I can't redesign the file, if I could create two fields whose contents depend on the value of this one amount field then I would be all set. If the amount field contains zero or a positive number I want to have a new debit field that contains the amount and a new credit field that contains zero. If the amount field is negative then just the opposite should happen. Everything I've tried so far results in boolean results, not actually giving me two fields.

To be clear, suppose my amount field contains these two values:

AMOUNT
record 1: 100.00
record 2: -100.00

Then I want to run some SQL statement that will give me the following results:

DEBIT CREDIT
record 1: 100.00 0.00
record 2: 0.00 -100.00

Make sense? Is that possible?

James Rich

if you want to understand why that is, there are many good books on
the design of operating systems. please pass them along to redmond
when you're done reading them :)
- Paul Davis on ardour-dev


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