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Re: MSSQL 2012 poor performance versus DB2

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Hi Ram,

 

I have use SE30 and ST05 to analyze individual abap reports. I did find some slow SQL queries but they are slow when compared to the old DB2 system. If we didn't migrate from DB2 to SQL, we wouldn't know that SQL is performing SQL queries slower than DB2. Take the example of reading BSEG table, SQL took 1 min and DB2 took 2 secs for the same query.

 

I also did make changes to the query statements and build indexes to speed up the report performance in SQL which resulted in closer reponse times to the DB2 system. But the question is, why do I have to do that for SQL? Are there some tuning on SQL Server that I can do to avoid changing abap codes and building indexes?

 

Rdgs


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