RE: Problem with SQL peformance

[Alan Campin <Alan.Campin@xxxxxxx>]

Use Operations Navigator and run sql scripts and use the visual explain. It 
will show how it deciding to process. Bet you will find that IBM is executing 
one different than the other.  

-----Original Message-----
From: Shijith_Chand [mailto:Shijith_Chand@xxxxxxxxxx]
Sent: Friday, July 29, 2005 12:06 AM
To: rpg400-l@xxxxxxxxxxxx
Subject: Problem with SQL peformance


Dear all,

             I face this strange problem when I run this query in
STRSQL.

            

            SELECT * from kldadbfi3/norio10l WHERE PIPPO = '220215'  

 

            This query takes 10 seconds to return the results (just 1
record which satisfies )

            

            Where as the query 

 

            SELECT * FROM kldadbfi3/norio10l WHERE nnureg= 662631  

          

            Takes only 3 seconds 

         

            

            Both these queries selects the same record ...means NNUREG =
662631 & PIPPO = '220215' are of the same record

            Norio10l is a logical file with PIPPO as one of the keys.

 

            Does the SQL discriminate between the field that is used in
the WHERE clause?

 

        

Thanks In Advance,

Regards,

S.Chand

 

            

            

  

 

 

 

 

           

             



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