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  • Speaking at the Charlotte Users Group

      I will be giving a presentation in between Earthquakes and Hurricanes in Charlotte NC. this Wednesday the 31st of August on Understanding Indexes in SQL Server 2008. If you are in the area please drop by and say hello. You can find out more information and register for the event here. Andy
    Posted to Andrew Kelly (Weblog) by Andrew Kelly on August 26, 2011
  • SQL Server, Seeks, and Binary Search

    The following table summarizes the results from my last two blog entries, showing the CPU time used when performing 5 million clustered index seeks: In test 1, making the clustered index unique improved performance by around 40%. In test 2, making the same change reduced performance by around 70% (on 64-bit systems – more on that later).  ...
    Posted to Page Free Space (Weblog) by Paul White on August 8, 2011
  • Automating dm_exec_query_stats and dm_db_index_usage_stats analysis

    Everyone should know by now how really useful the DMVs dm_exec_query_stats, and dm_db_index_usage_stats and the associated DMFs for obtaining the SQL and XML plan: dm_exec_sql_text, dm_exec_query_plan, and dm_exec_text_query_plan. Of course it has been explained that dm_exec_query_stats is not a replacement for SQL Server Profiler and SQL Trace. ...
    Posted to Joe Chang (Weblog) by jchang on June 22, 2009
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