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  • Next-Level Parallel Plan Forcing: An Alternative to 8649

    ''Even experts with decades of SQL Server experience and detailed internal knowledge will want to be careful with this trace flag.  I cannot recommend you use it directly in production unless advised by Microsoft, but you might like to use it on a test system as an extreme last resort, perhaps to generate a plan guide or USE PLAN hint for ...
    Posted to Adam Machanic (Weblog) by Adam Machanic on July 11, 2013
  • Parallel Execution Plans Suck

    Summary: A deep dive into SQL Server parallelism, and a potential performance problem with parallel plans that use TOP. There was an interesting question asked by Mark Storey-Smith on dba.stackexchange.com back in October 2011.  He was looking at the execution plan for a query that counts a million rows from a virtual auxiliary table of ...
    Posted to Page Free Space (Weblog) by Paul White on May 2, 2012
  • White Paper on Parallel Processing

      I just ran across what I think is a newly published white paper on parallel  processing in SQL Server 2008 R2. The date is October 2010 but this is the first time I have seen it so I am not 100% sure how new it really is. Maybe you have seen it already but if not I recommend taking a look. So far I haven’t had time to read it ...
    Posted to Andrew Kelly (Weblog) by Andrew Kelly on December 10, 2010
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