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Why do i see writes in profiler trace when my query is only a select?


Why do i see writes in profiler trace when my query is only a select?

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curious_sqldba
curious_sqldba
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I just noticed that i see some writes under Writes column on sql profiler trace. These writes are physical writes. My query might be writing some data to tempdb, is that the reason?
GilaMonster
GilaMonster
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TempDB.

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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curious_sqldba
curious_sqldba
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GilaMonster (9/19/2013)
TempDB.


Thanks . Then comes my second question, is there any way ONLY to filter on "Reads" in profiler, i mean i basically want queries thats DONT change the data...
GilaMonster
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You could filter for Writes = 0, but that will exclude anything that touches TempDB, so maybe not what you want. Why do you want to exclude anything that writes?

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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curious_sqldba
curious_sqldba
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I guess i could . I am trying to replay transactions from prod to my test, but then i cant replay or wont have any value to the one's which are making data changes for various reasons.
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