troubleshooting Question

When to use a Unique Index? A Clustered Index?

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curiouswebsterFlag for United States of America asked on
DatabasesMicrosoft SQL ServerMicrosoft SQL Server 2008* T-SQLSQL
5 Comments1 Solution258 ViewsLast Modified:
When I have a slow performing query that uses a single field in the where clause, is that a good field on which to create a Unique Index?

Otherwise, what are a few rules of thumb when deciding which field could boost performance by having a Unique Index?

Now, please explain how a Clustered Index fits in? What big problems do they solve?

Thanks.
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