If the current Microsoft® SQL Server™ 2000 Analysis Services database or current SQL database does not answer all of the questions that a user might ask, modify the project by adding a new or changing the current SQL database connection. There can be, at most, one SQL and one Analysis Services database per project.
Note Before adding a SQL connection to an Analysis Services project, make sure that you are a member of the OLAP Administrators group and the Microsoft Windows NT® 4.0 or Windows® 2000 user group on the server of the Analysis Services database for which the model is being built. You must have OLAP Administrator permissions to load the tables underlying the cubes using Decision Support Objects (DSO).
To add or change a SQL connection
Note Both SQL and Analysis Services databases can be enabled.
Expanding an English Query Model
Data Connection Tab (Project Properties Dialog Box)