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Performance issue

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Performance issue

Posted by johan grisham at May 06. 2009

Environment: aix 5.3


    db2 8.2


 


Previously query is running fine,now its taking 6 hours to complte..


Everythig is fine like indexes and all


can any one please guide me


 


Thanks


 


Re: Performance issue

Posted by perallis at May 06. 2009

Hello Johan,


Could you please provide us your the query and the tables statistics used from your query, such as: number of inserts, number of reads, updates. etc.

Run the command :

db2 reorgchk update statistics on table <schemaname>.<tablename>


And inform us if there are any indexes for these tables.


 


Regards,
Perallis


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