Add login and connect to SQL with SQL Server Authentication

问题

I want to add a user in SQL Server 2008 so I can use SQL Server Authentication instead Windows Authentication for connecting to SQL, and have tried this code to create a user with login:

CREATE login [newLog] with password = 'passnewLognewLog'

I get it done, but when I want to connect to SQL Server using SQL Authentication, I get this message

Cannot connect to "Mydb"
additional information: Login failed for user 'newLog'. (Microsoft SQL Server, Error: 18456 )

What am I missing here?

回答1:

After creating the login, you need to add the user to the database. This example is from the sql server documentation for CREATE USER:

CREATE LOGIN AbolrousHazem 
    WITH PASSWORD = '340$Uuxwp7Mcxo7Khy';
USE AdventureWorks2008R2;
CREATE USER AbolrousHazem FOR LOGIN AbolrousHazem;
GO

Edit

To test, I ran this T-SQL:

create login Foo with password ='f00';
go

use TestDB
create user Foo for Login Foo
go

and opened a connection successfully using this connection string:

"Server=<server>; user id=Foo; password=f00; initial catalog=TestDB"

回答2:

You need to create a user for the login, e.g.

CREATE USER [newLog] FOR LOGIN [newLog] WITH DEFAULT_SCHEMA=[dbo]

Check that mixed authentication is enabled: https://stackoverflow.com/a/1719476/188926

回答3:

Try the following. They worked for me when I had this connection issue.

 -When you are adding SQL user, make sure 'enforce password policy' is unchecked.
 -Make sure that user is mapped to the database with proper permissions.
 -on SSMS, right click server and then go to Security tab. Select 'SQL Server and Windows Authentication mode' option.
 -restart PC.

来源：https://stackoverflow.com/questions/6643720/add-login-and-connect-to-sql-with-sql-server-authentication

标签

sql-server-2008

connection