User Guide

Connecting to Informix 9.x 43

Connecting to Informix 9.x

Use the settings in the following table to connect ColdFusion MX to Informix 9.x data sources:

Setting Description

CF Data Source Name The data source name (DSN) used by ColdFusion MX to connect to the

data source.

Database The database to which this data source connects.

Informix Server The name of the Informix database server to which you want to connect.

Server The name of the server that hosts the database that you want to use. If the

database is local, enclose the word local in parentheses.

Port The number of the TCP/IP port that the server monitors for connections.

Username The user name that ColdFusion MX passes to the JDBC driver to connect

to the data source if a ColdFusion application does not supply a user name;

for example, in a

cfquery tag.

Password The password (16-character limit) that ColdFusion MX passes to the JDBC

driver to connect to the data source if a ColdFusion application does not

supply a password; for example, in a

cfquery tag.

Description (Optional) A description for this connection.

Limit Connections Specifies whether ColdFusion MX limits the number of database

connections for the data source. If you enable this option, use the Restrict

Connections to field to specify the maximum.

Restrict Connections

Specifies the maximum number of database connections for the data

source. To use this restriction, you must enable Limit Connections.

Maintain Connections ColdFusion MX establishes a connection to a data source for every

operation that requires one. Enable this option to improve performance by

caching the data source connection.

String Format Enable Unicode for data sources that are configured for non-Latin

characters.

Max Pooled

Statements

Enables reuse of prepared statements (that is, stored procedures and

queries that use the cfqueryparam tag). Although you tune this setting

based on your application, start by setting it to the sum of the following:

• Unique

cfquery tags that use cfqueryparam

• Unique cfstoredproc tags

Timeout (min) The maximum number of minutes after the data source connection is made

that you want ColdFusion MX to cache a connection after it is used.

Interval (min) The time (in minutes) that the server waits between cycles to check for

expired data source connections to close.

Disable Connections If selected, suspends all client connections.

connection login attempt.