Question

This query (part of a sproc) will be executed quite a lot:

SELECT TOP (@numRecords)  BlogPost.postId,BlogPost.creationDate,
        BlogPost.header,BlogPost.markedupContentAbstract
     FROM dbo.BlogPost ORDER BY BlogPost.creationDate DESC

Should I put an index on the ‘creationDate’ field in the BlogPost table?
Should I have a view where BlogPost records are ordered and then just SELECT TOP from that?

Details: using SQL Server 2008.

Answer 1

You cannot create a view with ORDER BY unless you add a TOP into that view.

You can create an index on creationDate and cover all other columns you use in the SELECT list:

CREATE INDEX ix_blogpost_creationdate__other ON BlogPost (creationDate) INCLUDE (postId, header, markedupContentAbstract)