System information

CONFIGURING AND ADMINISTERING COLDFUSION 9

Data Source Management

Last updated 2/21/2012

Connecting to Oracle

To see a list of Oracle versions that ColdFusion supports, go to www.adobe.com/go/learn_cfu_cfsysreqs_en. Use the

settings in the following table to connect ColdFusion to Oracle data sources:

Limit Connections Specifies whether ColdFusion 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 To Specifies the maximum number of database connections for the data source. To use this restriction,

enable the Limit Connections option.

Maintain Connections ColdFusion 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.

Timeout (min) The number of minutes that ColdFusion MX maintains an unused connection before destroying it.

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.

CLOB Select to return the entire contents of any CLOB/Text columns in the database for this data source. If

not selected, ColdFusion retrieves the number of characters specified in the Long Text Buffer setting.

BLOB Select to return the entire contents of any BLOB /Image columns in the database for this data source. If

not selected, ColdFusion retrieves the number of characters specified in the BLOB Buffer setting.

LongText Buffer The default buffer size; used if Enable Long Text Retrieval (CLOB) is not selected. The default value is

64000 bytes.

BLOB Buffer The default buffer size; used if the BLOB option is not selected. The default value is 64000 bytes.

Allowed SQL The SQL operations that can interact with the current data source.

Validation query Called when a connection from the pool is resued. This can slow query response time because an

additional query is generated. Configure this just before restarting the database to verify all

connections, but remove the validation query after restarting the database to avoid any performance

loss.

Setting Description

CF Data Source Name The data source name (DSN) that ColdFusion uses to connect to the data source.

SID Name The Oracle System Identifier (SID) that refers to the instance of the Oracle database software running on

the server. The default value is

ORCL.

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.

User name The user name that ColdFusion 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 that ColdFusion 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.

Setting Description