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 Indexing a lookup table?

Author  Topic 

FruitBatInShades
Yak Posting Veteran

51 Posts

Posted - 2011-03-04 : 06:49:36
I have a table that is used purely for association

TagId (int)
ObjectTypeId (int)
ObjectId (int)

What is the best way to index this table (if at all). There are not many writes but frequent lookups.

Many Thanks

AndrewMurphy
Master Smack Fu Yak Hacker

2916 Posts

Posted - 2011-03-04 : 08:39:15
you index the columns that are used in "join" clauses and "where" conditions.
sometimes all you needs is sinle columns indexed, sometimes you need multi-columns in the indices.

show us some sample data and sample queries for more detailed advice.
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