Please check this:
create table #test(Account nvarchar(30), DR money, CR money, Balance money ) insert into #test values('XY Co.',200,200,null),('XY Co.',400,-200,null),('XY Co.',300,100,null) select * from #test IF OBJECT_ID('proc_test')IS NOT NULL DROP PROC proc_test; GO CREATE PROC proc_test AS update #test set Balance=DR-CR EXEC proc_test select * from #test
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