Re: Problem with SQL peformance

May that field is not indexed, thats why its taking too much time





"Shijith_Chand" <Shijith_Chand@xxxxxxxxxx> 
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
07/29/2005 12:35 PM
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RPG programming on the AS400 / iSeries


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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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