How to Fix Orphaned Users in SQL Server Database

Aug 24, 2012


In this article we will take a look at the steps a database administrator needs to follow in order to fix orphaned users within a SQL Server Database.

When will you see Orphaned Users within a SQL Server Database?

You may end up seeing orphaned uses within a SQL Server Database when you have restored a database from one server to another or you want to attach a database which was detached from another SQL Server Instance.

For example for business reasons you may have to restoring a copy of your Production database on to a QA or a Development Server. In such scenarios your application login would be already present on the QA and Development Server. However, the SIDs for the application login would be different on each server for the same login resulting in Orphaned User.

Identifying Orphaned Users in SQL Server Database

Use MyTechMantra

sp_change_users_login 'report'

Fixing Orphaned Users in a Database when Database Login and SQL Server Login is already available in SQL Server

Use MyTechMantra

sp_change_users_login 'AUTO_FIX','MyTechMantra'

How to Link the Specified User in a Current Database to an existing SQL Server Login

/* Create a New SQL Login */


/* Map Existing Database User MyTechMantra to Login NewSQLLogin */

USE MyTechMantra
EXEC sp_change_users_login 'Update_One', 'MyTechMantra', 'NewSQLLogin'

Reference:- sp_change_users_login (Transact-SQL)


In this article you have seen how to fix Orphaned Users in SQL Server Database.

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