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SQL Server Trace Flag.md

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# Microsoft SQL Server Trace Flags
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Detailed list of all discovered (documented and undocumented) Microsoft SQL Server trace flags (**620** trace flags).
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Detailed list of all discovered (documented and undocumented) Microsoft SQL Server trace flags (**622** trace flags).
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**REMEMBER: Be extremely careful with trace flags, test in your development environment first.
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And consult professionals first if you are the slightest uncertain about the effects of your changes.**
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<a id="trace-flags-list"></a>
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## Trace Flags List
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Summary: **620 trace flags**
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Summary: **622 trace flags**
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Scope: global only<br />
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SQL Server Version: >= 2019 CU1, >= 2017 CU18, >= 2016 SP1 CU10
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#### Trace Flag: 6950
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**Undocumented trace flag**<br />
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Function: Disable SQL Server 2022's TempDB contention improvements around GAM/SGAM access.<br />
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Link: https://github.com/microsoft/bobsql/blob/master/demos/sqlserver2022/tempdb/disablegamsgam.cmd
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Link: [Github disable gamsgam]<br />
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Scope: global only<br />
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SQL Server Version: >= 2022
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#### Trace Flag: 6962
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**Undocumented trace flag**<br />
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Function: Disable SQL Server 2022's TempDB contention improvements around GAM/SGAM access.<br />
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Link: https://github.com/microsoft/bobsql/blob/master/demos/sqlserver2022/tempdb/disablegamsgam.cmd
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Link: [Github disable gamsgam]<br />
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Scope: global only<br />
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SQL Server Version: >= 2022
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#### Trace Flag: 7103
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**Undocumented trace flag**<br />
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[Minimizing the impact of DBCC CHECKDB]:https://sqlperformance.com/2012/11/io-subsystem/minimize-impact-of-checkdb
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[KB2634571]:https://web.archive.org/web/20150303213855/http://support.microsoft.com/kb/2634571
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[KB4565944]:https://support.microsoft.com/kb/4565944
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[Github disable gamsgam]:https://github.com/microsoft/bobsql/blob/master/demos/sqlserver2022/tempdb/disablegamsgam.cmd

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