"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, 3055🔥, 0💬

sys.server_principals - Listing All Login Names in SQL Server
How To List All Login Names on the Server in SQL Server? If you want to see a list of all login names defined on the server, you can use the system view, sys.server_principals as shown in this tutorial exercise: -- Login with sa SELECT name, sid, type, type_desc FROM sys.server_principals WHERE type... 2016-10-20, 7663🔥, 0💬

Verifying a User Name with SQLCMD Tool in SQL Server
How To Verify a User name with SQLCMD Tool in SQL Server? The quickest way to verify a user name in a database is probably to use the SQLCMD tool. You can connect to the server, select the database, and check which user name is linked the current login name as shown below. Start a command window and... 2017-08-25, 6663🔥, 0💬

"ALTER USER" - Changing the Name of a Database User in SQL Server
How To Change the Name of a Database User in SQL Server? If you want to change the name of an existing database user, you can use the "ALTER USER" statement as shown in the tutorial exercise below: -- Login with "sa" USE FyiCenterData; GO ALTER USER Fyi_User WITH NAME = Dba_User; GO -- List all user... 2022-01-24, 6624🔥, 0💬

"ALTER LOGIN" - Disabling a Login Name in SQL Server
How To Disable a Login Name in SQL Server? If you want temporarily disable a login name, you can use the "ALTER LOGIN" statement with a DISABLE keyword. If you want to enable it later on, you can use the ENABLE keyword. The tutorial exercise below shows how to disable and enable login name "Dba_Logi... 2016-10-19, 5030🔥, 0💬

"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, 3729🔥, 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, 3614🔥, 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, 3589🔥, 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, 3347🔥, 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, 3246🔥, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.