How to re-map database user to login in SQL Server?

How to re-map database user to login in SQL Server?

Re-map database user to a login in SQL server after restoring or attaching database When restoring or attaching a database to a new or different Microsoft SQL server the logins and mappings to the database users are lost. If you create the logins again you’re not able to map the users because they already exist in the database:

How can I restore my SQL Server database?

One simple solution would be to restore the database drop all of the users and recreate the users. This may be simple if you have a few users, but what if there are hundreds. Also, if the user owns objects you will not be able to drop the user. SQL Server offers several different commands to allow you to relink the logins and the users.

When to re-synch SQL server logins or users?

Instructions provided describe how to re-synch SQL Server logins with the database users after restoring a database from backup. This process is always required when an SDE schema database is restored from a backup (.bak), or attached from a previously detached database (.mdf).

When to restore a database from one server to another?

This is the script I run on SQL Server 2008 when I restore a production database from one server to development/test database on another server WHEN the Users name is in the Security > Users of the database BUT the ‘login name’ is missing from the users property on the General tab:

How to recover QA logins after database restored?

So, go to the old QA server and script out the logins. Add the logins to the new server, making sure you don’t have any duplicates. This assumes the logins are in the same domain, etc. Then you have to always add your 50 QA users to the newly restore prod database as database users, there is no other way.

Where are the logins stored in the master database?

Logins are stored in master. The database users (mapped to the logins) are stored in the user database. It sounds like you moved the QA database but didn’t move the logins. You could move logins by moving the master database from the QA system, but that would replace the logins from the production system, so that would be bad.

Why is it not possible to map a user to a database?

If you create the logins again you’re not able to map the users because they already exist in the database: User, group, or role ‘ {login}’ already exists in the current database.

What happens when you restore a database to a new SQL Server?

When restoring or attaching a database to a new or different Microsoft SQL server the logins and mappings to the database users are lost. If you create the logins again you’re not able to map the users because they already exist in the database:

How can I get around restore with standby?

Since restore with STANDBY will not allow this as it will be read-only db.. how can I get around this..? Your users from db on server A will be moved to the database on server B with the backup. Then all you need is to recreate the logins with the same sid.

How to re-map db users after restore with ETL?

Basically, the issue which I am having now is that in my restore process (as part of ETL), there are tasks to re-map db users to logins (because they are SQL Auth users in server A so lose mapping when restored on server B). Since restore with STANDBY will not allow this as it will be read-only db.. how can I get around this..?

What happens to SIDS on a SQL Server restore?

Users are associated with logins via SIDs, creating a relationship between the two and allowing a login to connect to the instance and then use the associated user to connect to the database. What commonly happens with SQL authenticated logins and database users on a restore is that the SIDS will be out of sync, thus breaking the relationship.