XML Showplan in 2008
I just found my first fundamental difference between execution plans in SQL Server 2005 and SQL Server 2008. In 2005 when you run an query and have it display an XML execution plan by issuing the...
View ArticleConstant Scan in Execution Plans
I see a lot of searches from people apparently trying to find out what having a Constant Scan in their execution plan means. I can understand why. Here’s the definition from the Books Online: The...
View ArticleExecution Plan Shortcoming in Extended Events
I use Extended Events almost exclusively for capturing query metrics. They are the most consistent and lowest cost mechanism for getting the time and resources used by a query. They can be filtered,...
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