RE: SQL doubt

Thanks Rob and Loyd, I appreciate your help.

        -----Original Message----- 
        From: Muralidhar Narayana 
        Sent: Tue 8/31/2004 9:12 PM 
        To: midrange-l@xxxxxxxxxxxx 
        Cc: 
        Subject: SQL doubt
        
        

        Below is my SQL. I have to do a small modification,

        I have to execute this 'YEUXFILE.PQTY-COALESCE(YODIAC.PQTY,0) ' only 
when YEUXFILE.PQTY is positive value. (ie. when YEUXFILE.PQTY is greater than 
or equal to zero, I have to do that substraction)

        Can some one help me to implement this in my already existing solution. 
I tried but could not succeed.

        Thanks for your help, I sincerely appreciate your help.

         

         

         

         

        SELECT YEUXFILE.PRECID,YEUXFILE.CFTC,                    

              YEUXFILE.PEXCH,YEUXFILE.PFC,YEUXFILE.ACCOUNT,              

              
YEUXFILE.PFIRM,YEUXFILE.PSNAME,YEUXFILE.PQTY-COALESCE(YODIAC.PQTY,0)      

              AS PQTY                                                           
        

              FROM QS36F/YEUXFILE                                               
        

              LEFT OUTER JOIN (SELECT                                           
        

              PRECID,ACCOUNT,PFIRM,PFC,SUM(COALESCE(YODIAC.PQTY,           

              0)) AS                                                            
        

               PQTY                                                             
        

              FROM  QS36F/YODIAC GROUP BY PRECID,ACCOUNT,PFIRM,PFC)        

              AS                                                                
        

              YODIAC                                                            
        

              ON YEUXFILE.ACCOUNT = YODIAC.ACCOUNT