1  –  ALL

    Specifies all active connections.

2  –  connection-name

    Specifies a name for the association between the group of
    databases being attached (the environment) and the database and
    queries that reference them (the session).

    You can specify the connection name as the following:

    o  A string literal enclosed in single quotation marks

    o  A parameter (in module language)

    o  A variable (in precompiled SQL)

3  –  CURRENT

    Specifies the current connection.

4  –  DEFAULT

    Specifies the default connection.