i m using sql 2000 and i have a table with 3 columns ( credit , debit, total)
what i want to do is whenever a value is inserted to the credit column it should add that amount to the total column and whenever there is a debit value it should Subtract from the total value
can some one please help me with this
i know this should be done by a rule but i cant figure out how to do it
kalpa23
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Jump to PostIs Total supposed to be a running sum or is it simply the current total as reflected by the current credit and debit amounts?
In either case, I would look up triggers and modify your Total value whenever a row as updated.
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apegram
302
LINQ!
Team Colleague
Is Total supposed to be a running sum or is it simply the current total as reflected by the current credit and debit amounts?
In either case, I would look up triggers and modify your Total value whenever a row as updated.
kalpa23
0
Light Poster
it should be current total
apegram
302
LINQ!
Team Colleague
it should be current total
The you can simply say
Update tableNameHere Set Total = Credit - DebitAs I said before, you should look up triggers in SQL Server 2000 to see how you can associate the aforementioned statement with a table as a record gets updated.
I assume there is a valid reason for storing a calculated value in the table when a simple query would do. I suppose that's just part of the assignment, huh?
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