Option

Description

CF Data Source Name

The data source name (DSN) that ColdFusion uses to connect to the data source.

Database File

The file that contains the database.

System Database File

To secure access to the specified database file, click Browse Server to locate and enter a database that contains database security information. The system database is usually located in the same directory as the MDB file or in the windows\system32\system.mdw directory.

Use Default Username

If selected, ColdFusion does not pass a user name or password when requesting a connection. The Microsoft Access driver uses the default user name and password.

ColdFusion Username

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) .

ColdFusion 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.

Page Timeout

The number of milliseconds before a request for a ColdFusion page times out. The default value is 600. If you observe excessive network activity when using this driver, increase the page timeout value.

Max Buffer Size

The size of the internal buffer, in kilobytes, used by Microsoft Access to transfer data to and from the disk. Can be any integer value divisible by 256.

Connection String

A field that passes database-specific parameters, such as login credentials, to the data source.

Default Username

The user name that the driver uses to connect to the data source if an application requests a connection without supplying a user name.

Default Password

The password that the driver uses to connect to the data source if an application requests a connection without supplying a password.

Return Timestamp as String

Enable this setting if your application retrieves Date/Time data and then reuses it in SQL statements without applying formatting (using functions such as DateFormat, TimeFormat, and CreateODBCDateTime).

Limit Connections

If selected, limits the number of data source connections to the value entered in the Restrict Connections To field.

Restrict Connections To

The maximum number of data source connections; used with the Limit Connections option.

Maintain Connections

ColdFusion establishes a connection to a data source for every operation that requires one. Select this option to improve performance by caching the data source connection.

Timeout (min)

The number of minutes that ColdFusion 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.

Login Timeout (sec)

The number of seconds before ColdFusion times out the data source connection login attempt.

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 amount 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 amount specified in the BLOB Buffer setting.

Long Text Buffer (chr)

The default buffer size, used if the CLOB option is not selected. The default value is 64000 bytes.

BLOB Buffer (bytes)

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. You should specify this just before restarting the database to verify all connections, but remove the validation query after restarting the database to avoid any performance loss.