Set up Informix data source support

A federated database system enables users and applications to refer to multiple database management systems or databases within a single SQL statement. You can, for example, perform a UNION between a DB2® table and an Informix® view. A federated system includes a DB2 instance and database, and one or more data sources. Each data source consists of a non-DB2 DBMS and data.

In InfoSphere™ Federation Server Relational Wrappers, different wrappers are provided to allow your DB2 server to access different data sources. Wrappers are available for Oracle, Sybase, Microsoft® SQL Server, and Teradata. Wrappers for Informix data sources and DB2 data sources are available as part of DB2 server products.

Before setting up distributed join, you must do two things:

  1. Install and configure the Informix client software on the federated server system. The Informix client software is included with your DB2 product.
  2. The Informix client software must be configured to connect to the data source. It is recommended to test this connection using Informix query tools so that any problem encountered with server definitions can be isolated to either the installation and configuration of the Informix client software or the installation and configuration of your DB2 product.

To set up distributed join for Informix data sources, type the Informix client installation directory and the name of the Informix server to use as a data source. The DB2 Setup wizard will install a wrapper for the data source and set up distributed join to access it.

You can set up distributed join for data sources later by using the DB2 Setup wizard or the Command Line Processor (CLP).

More information on using InfoSphere Federation Server Relational Wrappers to access non-DB2 data sources is available in the DB2 Information Center.