Configuring an ODBC Data Source
Once the ODBC driver and administrator have been installed, you can configure ODBC data sources. Each driver for each database requires different information to make a connection. The one thing they all have in common is the data source name.
Each data source that you configure to connect to a particular database is identified by the data source name. When an application needs to connect to a database, the application passes the data source name, which maps to the information that was configured for that database.
