Stored Procedure example to get Grand Total using query

This is example of Stored Procedure to get Grand Total of columns using select query in sql. You can try for your database table too.

 set ANSI_NULLS ON  
 set QUOTED_IDENTIFIER ON  
 GO  
 Create PROCEDURE [dbo].[CALC_TOTAL1]  
 (  
 @NO CHAR(15),  
 @AMTNUMERIC1(9,2)=NULL,  
 @TAX NUMERIC1(9,2)=NULL,  
 @DISCNUMERIC1(9,2)=NULL,  
 @G_TOTAL NUMERIC1(9,2)=NULL  
 )  
 AS  
 SELECT @TOT_AMOUNT=SUM(AMOUNT) FROM TRANS WHERE TNO=@CNO  
 SELECT @TAX=ISNULL(SUM(TAX_A),0) FROM TAX WHERE NO=@TCNO  
 SELECT @TOT_DISC_A=ISNULL(SUM(DISC_A),0) FROM DISCOUNT WHERE NO=@CNO  
 SET @G_TOTAL = (@AMT- @TOT_DISC_A) + @TAX  
 UPDATE FOOT SET SUBTOTAL=@TOT_AMOUNT,TAX=@TAX,DISCOUNT=@TOT_DISC_A,G_TOTAL=@G_TOTAL  
 WHERE CNO=@CNO