You use the ColdFusion Administrator to quickly add a data source for use in your ColdFusion applications. When you add a data source, you assign it a data source name (DSN) and set all information required to establish a connection. 
Note: ColdFusion includes data sources that are configured by default. You do not need the following procedure to work with these data sources.
Add a data source
  - In the ColdFusion Administrator, select Data & Services > Data Sources.
 
  - Under Add New Data Source, enter a data source name; for example, MyTestDSN. The following names are reserved; you cannot use them for data source names:
  - service
 
  - jms_provider
 
  - comp
 
  - jms
 
   
  - Select a driver from the drop-down list box; for example, Microsoft SQL Server.
 
  - Click Add.
A form for additional DSN information appears. The available fields in this form depend on the driver that you selected.
   
  - In the Database field, enter the name of the database; for example, Northwind.
 
  - In the Server field, enter the network name or IP address of the server that hosts the database, and enter any required Port value; for example, the bullwinkle server on the default port.
 
  - If your database requires login information, enter your Username and Password.
Note: The omission of required username and password information is a common reason why a data source fails to verify.
   
  - (Optional) Enter a Description.
 
  - (Optional) Click Show Advanced Settings to specify any ColdFusion specific settings; for example, to configure which SQL commands can interact with this data source.
 
  - Click Submit to create the data source.
ColdFusion automatically verifies that it can connect to the data source.
   
  - (Optional) To verify this data source later, click the verify icon in the Actions column.
Note: To check the status of all data sources available to ColdFusion, click Verify All Connections.
   
Specifying connection string arguments
The ColdFusion Administrator lets you specify connection-string arguments for data sources. In the Advanced Settings page, use the Connection String field to enter name-value pairs separated by a semicolon. For more information, see the documentation for your database driver.
Note: The cfquery connectstring attribute is no longer supported.
Guidelines for data sources
When you add data sources to ColdFusion, keep the following guidelines in mind:
  - Data source names should be all one word.
 
  - Data source names can contain only letters, numbers, hyphens, and the underscore character (_).
 
  - Data source names should not contain special characters or spaces.
 
  - Although data source names are not case-sensitive, you should use a consistent capitalization scheme.
 
  - Depending on the JDBC driver, connection strings and JDBC URLs might be case-sensitive.
 
  - Use the Administrator to verify that ColdFusion can connect to the data source.
 
  - A data source must exist in the ColdFusion Administrator before you use it on an application page to retrieve data.