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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » How indexing can help Database cleanup and performance?

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ghoshly
PostPosted: Tue Jan 13, 2009 10:57 am    Post subject: How indexing can help Database cleanup and performance? Reply with quote

Partisan

Joined: 10 Jan 2008
Posts: 333
Hi,

In our system runtime we have persisted some of the steps through which our msgflows carries data, so that we can restore from the state when there is any failure. Resulting this some of the table stores clob data.
Performance of the system goes down when lots of data are stored in those tables and improves if we just clear out those tables. How indexing can play a important role to speed up the performance without clearing out the data from those tables?

Thanks in advance for ideas.
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Hari
PostPosted: Tue Jan 13, 2009 11:45 am    Post subject: Reply with quote

Centurion

Joined: 21 Nov 2002
Posts: 117
Location: USA
With the assumption that you are using DB2 and you are doing INSERTS mostly, here's a good read to increase perf for INSERTS on DB2.

http://www.ibm.com/developerworks/db2/library/tips/dm-0403wilkins/
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ghoshly
PostPosted: Tue Jan 13, 2009 11:48 am    Post subject: Reply with quote

Partisan

Joined: 10 Jan 2008
Posts: 333
Sorry...Missed before... Here we have used Oracle 10g.. and in couple of tables we have inserted more with CLOB data..and in some runtime table select is more.
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