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GeekInterview.com > Interview Questions > Data Warehousing > DataStage
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Question: Importance of Surrogate Key in Data warehousing?
Answer: Surrogate Key is a Primary Key for a Dimension table. Most importance of using it is it is independent of underlying database. i.e Surrogate Key is not affected by the changes going on with a database.
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| January 01, 2007 03:45:41 |
#5 |
| vara |
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RE: Importance of Surrogate Key in Data warehousing?&n...
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| can uplz elobrate, how performance improves, queryprocessing |
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