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Database Server Connection

A connection is a logical association between two applications; in this context, between a client application and a database server. A connection must be established between client and database server before data transfer can take place. In addition, the connection must be maintained for the duration of the transfer of data.

Tip:
The IBM Informix internal communications facility is called Association Services Facility (ASF). If you see an error message that refers to ASF, you have a problem with your connections.

A client application establishes a connection to a database server with either the CONNECT or DATABASE SQL statement. For example, to connect to the database server my_server, an application might contain the following form of the CONNECT statement: 

CONNECT TO '@myserver'

For more information on the CONNECT and DATABASE statements, see the IBM Informix: Guide to SQL Syntax.

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