Connecting to Multiple Data Sources
Use the following procedure to connect to multiple data sources.
1 Select the Tools > Options > General tab.
2 Click Allow connections to multiple data sources (Query windows),
3 Follow the procedure for connecting to a data source.
Each new data source appears in the Database Tree and opens a new query window with the data source name in its caption. To disconnect from a data source, click the Query window that is connected to that data source and click the disconnect icon.