以另一用户身份连接到同一数据库，而无需对连接字符串进行硬编码

Question

Can I use OPENDATASOURCE (or another mechanism) from a Stored Procedure to connect to the same database as a different user? If so, how?

The database is meant to be deployed to several customers, and replicated by them as many times as they want to, etc. For this reason, I CANNOT HARDCODE the database server's name or the database's name.

(I tried using OPENDATASOURCE , but it only accepts hardcoded connection strings.)

Answer 1

Might EXECUTE AS work in your situation? http://msdn.microsoft.com/en-us/library/ms181362.aspx

Answer 2

You can set up a Linked Server to connect to the remote server using the login's current security context (or other options as it applies to your situation).

From your stored procedure, you could access it with something like SELECT * FROM mylinkedservername.mylinkedserverdatabase.dbo.mytable

But you say you want to connect to the same database but using a different login? You're looking for impersonation. Perhaps you can do this making a Linked Server that references itself, I haven't tried it. Search Microsoft Help documentation for how to set it up normally and test if it does what you're looking to do.