Best index(es) to use for an OR Statement in SQL Server

Posted by Chuck Haines on Stack Overflow See other posts from Stack Overflow or by Chuck Haines
Published on 2010-06-16T15:19:20Z Indexed on 2010/06/16 15:22 UTC
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sql-server

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sql-server-2008

I have a table which has a bunch of columns but the two relevant ones are:

Due_Amount MONEY Bounced_Due_Amount MONEY

I have a SQL query like the following

SELECT * FROM table WHERE (Due_Amount > 0 OR Bounced_Due_Amount > 0)

Would the best index to put on this table for SQL Server 2008 be an index which includes both columns in the index, or should I put an separate index on each column?

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