Peculiar T-SQL requirement.

Hi all,

I have a scenario in which I need to do an amount balancing ( meaning, OFFSET few records with positive amount whose sum equals the value in the negative amount in the same recordset).

Consider the below example.

Col1 Col2 Amount OFFSet

A 01 100 0
A 01 20 0
A 01 30 0
A 01 25 0
A 01 -145 0
A 01 15 0

Above 6 records are fetched for a particular condition. My requirement now is to update the OFFSET column of the positive valued records whose sum equals the value in the negative amount (145) .

That is, I need the below result.

Col1 Col2 Amount OFFSet

A 01 100 1
A 01 20 1
A 01 30 0
A 01 25 1
A 01 -145 0
A 01 15 0

Only the records whose sum of amount matches the negative amount value should be OFFSet'd no matter in what sequence they are.

I guess I'm confusing a bit, let me know if you need more explanation.

Any help would be appreciated.

Thanks,

DBLearner

What you describe is a HUGE logic problem, not a SQL problem. That is very complicated to accomplish.

What do you do with multiple records match your criteria. For example:

Col1 Col2 Amount OFFSet

A 01 100 0
A 01 20 0
A 01 30 0
A 01 25 0
A 01 -145 0
A 01 15 0
A 01 25 0
A 01 100 0
A 01 25 0
A 01 25 0
A 01 25 0
A 01 15 0
A 01 10 0

What now?

-145 = 100+20+25
-145 = 25+25+25+25+20+25
-145 = 100+20+15+10
etc

sql