SQL Server Rapid Tuning

19 August,2008 by Jack Vamvas

SQL Server Performance sometimes  get very slow. There can be many reasons for the sudden slow down. A systematic approach - can give you a plan to progress.

I use this approach in general situations , where the user has complained of general SQL performance slowdown  without giving you specific feedback .

 

After every stage , check performance.  If the performance is still very slow - progress with other analysis. Contact me if you need assistance

 

Stage I


UPDATE STATISTICS (with FULL scan) for all tables

    DBCC UPDATEUSAGE(db_name)
    exec sp_recompile for all objects

    exec sp_refreshview for all views


Stage II


    DBCC DBREINDEX
    exec sp_recompile for all objects
    exec sp_refreshview for all views


Stage III


    Profiler
    Query Hints

 

 

Hint: Advise them of the need to write scalable code to start with !

 Related Posts

SQL Server Performance Killers

SQL Server Performance Checklist

SQL Server Performance ,memory pressure and memory usage


Author: Jack Vamvas (http://www.sqlserver-dba.com)


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