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CONFIGURING AND ADMINISTERING COLDFUSION 10
Data Source Management
Setting
Description
BLOB Buffer
The default buffer size, used if the BLOB option is not selected. The default value is
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 just before restarting the database to verify all connections, but remove
the validation query after restarting the database to avoid any performance loss.
Note: This driver uses the Microsoft Jet list of reserved words, including the word Last. For a complete list, see
http://support.microsoft.com/?kbid=248738.
Connecting to Microsoft SQL Server
To see a list of SQL Server 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 SQL Server:
Setting
Description
CF Data Source Name
The data source name (DSN) that ColdFusion uses to connect to the data source.
Database
The database to which this data source connects.
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. If you are running SQL Server locally (or using MSDE), specify 127.0.0.1 for the
server name instead of the actual instance name.
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
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
Description
(Optional) A description for this connection.
Connection String
A field that passes database-specific parameters, such as login credentials, to the data source.
Select Method
Determines whether server cursors are used for SQL queries.
•
The Direct method provides more efficient retrieval of data when you retrieve recordsets in a forward-only
direction and you limit your SQL Server connection to a single open SQL statement at a time. This is typical for
ColdFusion applications.
•
The Cursor method lets you have multiple open SQL statements on a connection. This is not typical for
ColdFusion applications, unless you use pooled statements.
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.
String Format
Enable this option if your application uses Unicode data in DBMS-specific Unicode data types, such as National
Character or nchar.
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Last updated 7/9/2012
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