A connection, also referred to as a database set, is an established link between a schema repository and its associated user database.
Connections allow users to access a database set. For example, when a user logs on to Rational® ClearQuest® Client for Windows, he or she is asked to select a connection, and then to select a user database. This assumes the user is allowed access to more than one connection; if the user works with only one connection, the window offering this choice is not displayed.
Keep in mind that when you specify database parameters, case sensitivity may apply to the vendor database you choose. For more information on database case-sensitivity and properties, see the related link.