"CREATE USER" - Creating a User Name in a Database in SQL Server

Q

How To Create a User Name in a Database in SQL Server?

✍: FYIcenter.com

A

User names are security principals at the database level. If you want to allow a login name to access a specific database, you need to create a user name in that database and link it to the login name.

Creating a user name can be done by using the "CREATE USER" statement as shown in this tutorial exercise:

-- Login with "sa"

-- Create a login
CREATE LOGIN Fyi_Login WITH PASSWORD = 'IYF'
GO

-- Select a database
USE FyiCenterData;
GO

-- Create a user and link it to a login
CREATE USER Fyi_User FOR LOGIN Fyi_Login;
GO

Login name "Fyi_Login" should be able to access database "FyiCenterData" through user name "Fyi_User".

⇒ sys.database_principals - Listing All User Names in SQL Server

⇐ "DROP LOGIN" - Deleting a Login Name in SQL Server

⇑ Managing Security, Login and User in SQL Server

⇑⇑ SQL Server Database Tutorials

2016-10-19, 2047🔥, 0💬

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"ALTER USER" - Changing the Name of a Database User in SQL Server
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"DROP USER" - Deleting a Database User in SQL Server
How To Delete an Existing Database User in SQL Server? If you don't want to keep a database user any more, you should delete the user by using the "DROP USER" statement. This tutorial exercise shows how to delete "Dba_User": -- Login with "sa" USE FyiCenterData; GO DROP USER Dba_User; GO -- List all... 2022-01-24, 2724🔥, 0💬

"DROP LOGIN" - Deleting a Login Name in SQL Server
How To Delete a Login Name in SQL Server? If you don't want to keep a login name any more, you should delete it by using the "DROP LOGIN" statement as shown in this tutorial example: -- Login with "sa" DROP LOGIN Dba_Login; GO Command(s) completed successfully. -- View login names SELECT name, sid, ... 2016-10-19, 2543🔥, 0💬

Finding the Login Name Linked to a Given User Name in SQL Server
How To Find the Login Name Linked to a Given User Name in SQL Server? If you know a user name in a database and you want to find out which login name is linked this user name, you need to check the Security ID (SID) of the user name based on the following rules: Each login name is associated a uniqu... 2017-08-25, 2487🔥, 0💬

"ALTER LOGIN" - Changing the Password of a Login Name in SQL Server
How To Change the Password of a Login Name in SQL Server? If a developer lost the password of his or her login name, you can reset the password with the "ALTER LOGIN" statement as shown in this tutorial example: -- Login with sa ALTER LOGIN FYI_DBA WITH PASSWORD = 'fyicenter'; GO Command(s) complete... 2016-10-20, 2379🔥, 0💬

"ALTER LOGIN" - Changing a Login Name in SQL Server
How To Change a Login Name in SQL Server? If you want to change a login name, you can use the "ALTER LOGIN" statement as shown in this tutorial example: -- Login with "sa" -- Change login name ALTER LOGIN Fyi_Login WITH NAME = Dba_Login; GO -- View login names SELECT name, sid, type, type_desc FROM ... 2016-10-19, 2306🔥, 0💬

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