如果用户通过 Active Directory 身份验证，如何将 ODBC 连接字符串发送到 SQL 服务器？

Question

Technologies:SQL Server 2008, .NET 2008, Active Directory

I'm trying to send a connection string via my application to the SQL Server to authenticate a username and password that is stored in Active Directory, not locally on the db server.

Unfortunately, this isn't working because when I send the connection string, it only checks the SQL server local users, instead of checking the credentials against active directory. Does anyone know of a solution?

Currently using ODBC to make the connection.

Answer 1

You cannot make a connection to SQL Server in this way. SQL Server supports only two kinds of connections:

1. SQL Login, where to connect, you supply it with the username and password of a SQL Login (ie, not a Windows/AD Logon) defined on that SQL Server. or,

2. A Trusted Connection, where to connect, you supply it with NO username or password and it connects you to a session based on your current Windows session's security context (assuming you are so authorized).

Those are your only choices. If you want to connect to SQL Server as a different Windows/AD security context, you will have to create a Windows session with that context first.