m - starts SQL Server in single user mode and does not let other’s users connect Start SQL Server in the command prompt with with the switches listed below: sqlservr -m -T4022 -T3659 -s"" -q"" Change the root directory to where SQL Server’s executable exists in the directory found in step 4.Ĩ. If the command prompt is not in the administrator mode, a permission error may occur when attempting to start the SQL Server instance.ħ. On Windows Server 2012 R2, right clicking on the Windows Start button will offer the Administrative Command Prompt in the menu. Open a command prompt in Administrator mode. Thanks to Sandeep Arora for providing the query listed above.Ħ. In a SQL Server query window, find the root directory where the SQL Server executable file and save for step 7. select name, collation_name from sys.databases Ĥ. Detach any database that the collation should not be changed to the new default for the SQL Server instance. Check the collation of all the databases on the instance. When the collation is changed for the instance, all attached databases will also have its collation changed. The best way to backup, if the server is virtualized, is to snapshot the server.ģ. Important to verify that all the databases were backed up before continuing. Make backups of all the databases on the instance of SQL Server being worked on. In this example, the installation of SQL Server 2016 Developer edition defaulted to ‘SQL_Latin1_General_CP1_CI_AS’ for this instance.Ģ. SELECT SERVERPROPERTY('COLLATION') AS 'DEFAULT COLLATION' In a SQL Server query window, check what is the current SQL Server’s default collation. Below is the steps taken to change the default collation for the SQL Server Instance, tested to work as far back as SQL Server 2005.ġ. Note: example below done on virtual edition of SQL Server 2016 Developer edition and not a production system. ![]() With our security already setup in the Master database for this instance, we did not want to reinstall SQL Server or have the Master database rebuilt (Microsoft’s recommended resolution). The issue was an instance of SQL Server was installed with the default collation (SQL_Latin1_General_CP1_CI_AS), and the software vendor was requesting that the default collation be set to ‘SQL_Latin1_General_CP850_BIN2’. Warning: this method of changing SQL Server’s default collation is not supported by Microsoft
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