Dear Experts,
I have the piece of sql code here below that has left me puzzled as it keeps giving out duplicates. Could someone examine the structure and advice on how to resolve this.
isnull((select distinct (SUM(a1.ActualDebit) - SUM(a1.ActualCredit) ) from #MainAccount a1
LEFT OUTER JOIN
#BudgetAccount bb ON aa.AccountID = bb.AccountID AND a1.PeriodStartdate = bb.PeriodStartDate and
a1.DateMonth=bb.DateMonth and a1.Budget = bb.Budget WHERE a1.AccountID = aa.AccountID and
a1.Refdate >= @FROMDATE and a1.Refdate <= @TODATE GROUP BY a1.group1, a1.Group2),0)
As Actual_CurrentMonth,