SUM for Multiple Table and Child Table (1 reply)

Please help me,

I need to create JOIN syntax for this query :

SELECT TblSupplier.SupplierName AS SupplierName, (SUM(TblBuy.TotalBuy) - SUM(TblReturn.TotalReturn)) AS Total, (SUM(TblPayment.TotalPaymentToday) - SUM(TblReturnItem.TotalReturnToday)) AS TotalPayment, ((SUM(TblBuy.TotalBuy) - SUM(TblReturn.TotalReturn)) - (SUM(TblPayment.TotalPaymentToday) - SUM(TblReturnItem.TotalReturnToday))) AS Balance FROM ... GROUP BY TblSupplier.ID

but I don't know how to do it...

thank you

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