Friday, May 29, 2009
Renaming Windows Logins in SQL Server
[Domain or Server Name]\[Windows Username]
[Domain] can also be the local Server name if the user is a local Windows User.
In the case where the Server name changes and the Windows Login names remain the same in SQL Server then the login will not be usable. To this end, these login names have to be renamed.
The syntax for renaming Windows Logins in SQL Server is:
ALTER LOGIN "[Domain or Server Name]\[Windows Username]"
WITH NAME="[New Domain or New Server Name]\[Windows Username]"
*Note: You have to use the double quotes.
If you want to rename a SQL Server login (SQL Server Authentication) you can use one of the following syntaxes:
ALTER LOGIN "[SQL Server Login Name]"
WITH NAME="[New SQL Server Login Name]"
ALTER LOGIN [SQL Server Login Name]
WITH NAME=[New SQL Server Login Name]
As you may noticed from the above two syntaxes, you can either select to use or not double quotes.
Easily secure your SQL Server instances! Try out DBA Security Advisor!
DBA Security Advisor was developed by SQLArtBits. The tool was being carefully developed for an entire year and it contains comprehensive security checks and recommendations based on proven SQL Server security best practices. Feel free to download and use the Community Edition which is free and if you find it useful, you can consider upgrading to the Enterprise Edition!
Artemakis Artemiou [MVP]
Author & Editor
Artemakis Artemiou is a Senior SQL Server Architect, Software Developer and Microsoft Data Platform MVP. He is also an author, regular blogger, president of Cyprus.NET User Group and CY Country leader of INETA-EU. He is also the creator of DBA Security Advisor and In-Memory OLTP Simulator. Artemakis is a frequent guest author of worldwide well-respected online journals where he writes articles focusing on many SQL Server topics.
Reference: The SQL Server and .NET Hub (http://www.sqlnethub.com)