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CONFIGURING AND ADMINISTERING COLDFUSION 10
Data Source Management
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7/9/2
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Connecting to Microsoft Access with Unicode
Use the settings in the following table to connect ColdFusion to Microsoft Access with Unicode data sources (this is a
Type 2 driver):
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. Specify the validation query 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.
Database File
The file that contains the database.
Description
(Optional) A description for this connection.
ColdFusion 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).
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).
Page Timeout
The time (in tenths of a second) before a request for a ColdFusion page times out.
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.
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.
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 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 the CLOB option is not selected. The default value is
64000
bytes.
Setting
Description