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    <p>A couple things come to mind. </p> <ol> <li><p>Do you need to keep that much data? If not, consider either creating an archive table if you want to keep it (but don't create it just to join it with the primary table every time you run a query).</p></li> <li><p>I would avoid using a temp table with so much data. See this article on temp table performance and how to avoid using them.</p></li> </ol> <p><a href="http://www.sql-server-performance.com/articles/per/derived_temp_tables_p1.aspx" rel="nofollow noreferrer">http://www.sql-server-performance.com/articles/per/derived_temp_tables_p1.aspx</a></p> <ol start="3"> <li>It looks like you are missing an index on the server_id field. I would consider creating a covered index using this field and others. Here is an article on that as well.</li> </ol> <p><a href="http://www.sql-server-performance.com/tips/covering_indexes_p1.aspx" rel="nofollow noreferrer">http://www.sql-server-performance.com/tips/covering_indexes_p1.aspx</a></p> <p><strong>Edit</strong></p> <ol start="4"> <li>With that many rows in the table over such a short time frame, I would also check the indexes for fragmentation which may be a cause for slowness. In SQL Server 2000 you can use the <code>DBCC SHOWCONTIG</code> command.</li> </ol> <p>See this link for info <a href="http://technet.microsoft.com/en-us/library/cc966523.aspx" rel="nofollow noreferrer">http://technet.microsoft.com/en-us/library/cc966523.aspx</a></p> <p>Also, please note that I have numbered these items as 1,2,3,4 however the editor is automatically resetting them</p>
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    1. POBig Table Advice (SQL Server)
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    1. USIrwin M. Fletcher
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    1. COgreat links! 1. So far I have 4 months worth of data, I would ideally like to keep 6 months in the current table then I could think about archiving. 2. I will run some tests using that method 1 (again). server_id is part of another table (called logfile). each server has multiple logfiles and each logfile has multiple logs. can I still include this in the index?
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    2. CONo, you could not include this field in a covered index if it is in a different table. I have updated my answer with one other point.
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      1. USIrwin M. Fletcher
    3. COHaving run those checks I see I've got a logical scan fragmentation of 2.3% and an extent scan fragmentation of 0.11%. My page density is at 90% which, according to that document, is a healthy amount. These numbers look good to me but I will make sure to add Defragging as that document recommends.
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