Database server connections
A client application establishes a connection to a database server with either the CONNECT or DATABASE SQL statement.
An application might contain the following CONNECT statement to
connect to the database server named my_server:
CONNECT TO '@my_server'
Tip: The database server's internal communications facility
is called Association Services Facility (ASF). If you see an error
message that includes a reference to ASF, you have a problem with
your connection.