Problem with SQL peformance-depends on field in Where Clause!

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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