Does it make sense to create index on field with less changeability ?

Posted by Maciej on Stack Overflow See other posts from Stack Overflow or by Maciej
Published on 2010-04-27T10:56:24Z Indexed on 2010/04/27 11:03 UTC
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Filed under:

tsql

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sql-server-2005

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indexing

|

performance-tuning

I heard opinion that it make no sense to create indexes when field has less changeability.
Eg if it stores only A,B,C,D values then there wouldn't be benefit of having such index, and further more SQL server will not use it at all when executing query.

I wonder your opinion on that matter?

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