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Archives of the TeradataForum
Message Posted: Thu, 25 May 2000 @ 18:03:05 GMT
| Subj: | | Re: Surrogate keys |
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| From: | | Bethany Withers |
Our mature (aka old) applications all use intelligent keys, for example store, item. We have a new application in very early
design phases that will be using surrogate keys. It deploys early 2001, so we will have some experiences to share in 8-9 months. We
have had huge success by using multi-set tables for our large historical tables. By dropping date out of the key our I/O dropped
dramatically and our online queries run significantly faster. Batch load time increased slightly. You may want to test multi-set
with 64K block size (available in V2R3) for your table where policy is not unique enough.
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