Create an Extended Events Session
SQL Server 2012
You can create an Extended Events session by using the Query Editor, or you can create a session in Object Explorer. In Object Explorer, Extended Events provides two user interfaces you can use to create, modify, and view event session data — a wizard that guides you through the event session creation process, and a New Session UI that provides more advanced configuration options. You can create Extended Events sessions to diagnose SQL Server tracing, which enables you to resolve issues such as the following:
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Find your most expensive queries
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Find root causes of latch contention
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Find a query that is blocking other queries
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Troubleshoot excessive CPU usage caused by query recompilation
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Troubleshoot deadlocks
