>I am trying to add a running total to a query.
>
>Here's the query:
>

>SELECT	ab.sAmark_Bank_Desc,
>		pm.sPayment_Method_Desc,
>		trn.dtInsert_DT,
>		trn.iTrading_Partner_ID,
>		tp.sTP_Name1,
>		trn.iOrder_Hdr_ID,
>		t.sTrade_Type_CD,
>		t.sTran_Group_CD,
>		t.sPayment_Term_CD,
>		trn.decTrans_Amt,
>
>		CASE sTrans_Type_CD
>			WHEN 'CR' THEN 'Cash Receipt'
>			ELSE 'Cash Disbursement'
>		END AS GroupDesc,
>
>		CASE sTran_Group_CD
>			WHEN 'MAR' THEN trn.decTrans_Amt
>			ELSE 0
>		END AS iMar,
>
>		CASE sTran_Group_CD
>			WHEN 'MAR' THEN 0
>			ELSE trn.decTrans_Amt
>		END AS iNotMar,
>
>		CASE
>			WHEN (t.decTrade_Product_Balance <> 0 AND
>				 ((t.sTrade_Type_Pay_Rec = 'PAY' OR t.sTrade_Type_Pay_Rec = 'REC') AND t.sTran_Group_CD <> 'MAR'))
>				THEN trn.decTrans_Amt
>			ELSE 0
>		END AS iProdBal,
>
>		CASE
>			WHEN (t.decTrade_Product_Balance = 0 AND
>				 ((t.sTrade_Type_Pay_Rec = 'PAY' OR t.sTrade_Type_Pay_Rec = 'REC') AND t.sTran_Group_CD <> 'MAR'))
>				THEN trn.decTrans_Amt
>			ELSE 0
>		END AS iNotProdBal,
>
>		CASE
>			WHEN (t.sTrade_Type_Pay_Rec = 'LM' OR t.sTrade_Type_Pay_Rec = 'SM') AND t.sTran_Group_CD <> 'MAR'
>				THEN trn.decTrans_Amt
>			ELSE 0
>		END AS iMemo
>
>	FROM Transactions trn
>	JOIN Trade t ON t.iTrade_ID = trn.iTrade_ID
>	JOIN Trading_Partner tp ON tp.iTrading_Partner_ID = trn.iTrading_Partner_ID
>	JOIN Payment_Method pm ON pm.sPayment_Method_CD = trn.sPayment_Method_CD
>	LEFT JOIN Amark_Bank ab ON ab.sAmark_Bank_CD = trn.sAmark_Bank_CD
>	WHERE trn.sTrans_Type_CD = @sReportType
>

>
>
>Here's the running total part. The problem is that when I add execute this running total part, it take a long time to run. And, I'm not sure how to incorporate this into the main query:
>
>

>SELECT  a.iTrade_ID,
>		SUM(b.decTrans_Amt) AS RunningTotal
>	FROM Transactions a
>	CROSS JOIN Transactions b
>	WHERE (b.iTrade_ID <= a.iTrade_ID)
>	GROUP BY a.iTrade_ID,a.decTrans_Amt
>
>

It is supposed to be slow. I am also wondering, are you sure there are no dates involved in this Running Total?

I guess you need procedural solution here.