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Will partitioning work for me?
Posted by: Anthony Willard
Date: June 15, 2006 07:54AM

I've seen many examples of how partitioning helps scanning of many millions of rows of data. What if your data is indexed? Does partitioning actually increase performance over non-partitioned tables with good keys and SQL?

I have a claims table in my warehouse that contains more than 6 million data rows. Query performance is good (once the keys are cached, even better ;-) ).

The table has a primary key on Claim Number and Claim Line Number. I was considering partitioning by Paid Date, but that column is not contained in the PK. And, from my exploration of this new feature, I'm not sure I can partition my table. Can I?

Assuming I can partition my claim table, would I get parallel query execution if a query spanned multiple partitions and thereby a performance improvement?

Any help in understanding is appreciated.

Anthony

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