Tag: maxdop

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SQL Server 2019 Transact-SQL optimization tips (Part 1)

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SQL Server 2019 Transact-SQL optimization tips (Part 1) Use table variables instead of temporary tables. Table variables require less locking and logging resources than temporary tables, so table variables should be used whenever possible. Try to avoid using SQL Server cursors, whenever possible. SQL Server cursors can result in some performance degradation in comparison with select statements. Try to use...

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Some tips for using DBCC commands in SQL Server 2017

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Some tips for using DBCC commands in SQL Server 2017 Use the DBCC SHOW_STATISTICS command to displays the current distribution statistics for the specified target on the specified table. You can use this DBCC command to see how distributed the data is and whether the index is really a good candidate or not. Avoid using the DBCC SHOWCONTIG command. This...

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Troubleshooting problems with joins in SQL Server 2016

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Troubleshooting problems with joins in SQL Server 2016 If you have problems with joins in SQL Server 2016, review this troubleshooting checklist to find potential solutions. 1. Install the latest SQL Server 2016 service pack. Because many join bugs were fixed in SQL Server 2016 service packs, you should install the latest SQL Server service pack. At the time this...

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Some tips for using SQL Server 2016 Database Console Commands

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Some tips for using SQL Server 2016 Database Console Commands Consider using a MAXDOP option with the DBCC CHECKTABLE, DBCC CHECKDB and DBCC CHECKFILEGROUP. This option was first introduced in SQL Server 2016. By using a MAXDOP option with the DBCC CHECKTABLE, DBCC CHECKDB and DBCC CHECKFILEGROUP you can specify the degree of parallelism. If you don’t need to check...

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