Query JDBC-ODBC Bridge Data in ColdFusion



Write standard ColdFusion data access code to connect to JDBC-ODBC Bridge data.

The CData JDBC driver for JDBC-ODBC Bridge seamlessly integrates connectivity to JDBC-ODBC Bridge data with the rapid development tools in ColdFusion. This article shows how to connect to JDBC-ODBC Bridge data in ColdFusion and query JDBC-ODBC Bridge tables.

Create a JDBC Data Source for JDBC-ODBC Bridge in ColdFusion

The JDBC data source enables you to execute SQL from standard ColdFusion tags like cfquery and CFScript like executeQuery.

  1. Copy the driver JAR and .lic file from the installation directory onto the ColdFusion classpath. For example, copy the files into C:\MyColdFusionDirectory\cfusion\wwwroot\WEB-INF\lib. Or, open the Java and JVM page in the ColdFusion Administrator and enter the path to the files in the ColdFusion Class Path box.

    The JAR and license for the driver are located in the lib subfolder of the installation directory.

    Restart the server after this step.

  2. Add the driver as a data source:

    From the ColdFusion administrator interface, expand the Data & Services node and click Data Sources. In the Add New Data Source section, enter a name for the data source and select Other in the Driver menu.

  3. Populate the driver properties:

    • JDBC URL: Enter connection properties in the JDBC URL. The JDBC URL begins with jdbc:jdbcodbc: and is followed by the connection properties in a semicolon-separated list of name=value pairs.

      To connect to an ODBC data source, specify either the DSN (data source name) or specify an ODBC connection string: Set Driver and the connection properties for your ODBC driver.

      Built-in Connection String Designer

      For assistance in constructing the JDBC URL, use the connection string designer built into the JDBC-ODBC Bridge JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.

      java -jar cdata.jdbc.jdbcodbc.jar

      Fill in the connection properties and copy the connection string to the clipboard.

      A typical JDBC URL is below:

      jdbc:jdbcodbc:Driver={ODBC_Driver_Name};Driver_Property1=Driver_Value1;Driver_Property2=Driver_Value2;...
    • Driver Class: Enter the driver class. The driver class is cdata.jdbc.jdbcodbc.JDBCODBCDriver.
    • Driver Name: Enter a user-defined name for the driver.
    • Username: Enter the username used to authenticate.
    • Password: Enter the password used to authenticate.

You can now test the connection by enabling the CData JDBC-ODBC Bridge data source in the Actions column. After reporting a status of OK, the JDBC-ODBC Bridge data source is ready for use.

Execute Queries

The cfquery tag can pass SQL statements to JDBC-ODBC Bridge, including INSERT, UPDATE, and DELETE.. Use the cfqueryparam tag to create parameterized queries and prevent SQL injection through the query string.

Note: To use the cfquery and cfscript, create a .cfm file. Inside the .cfm file, write the code to execute the query (see below). Place the file directly in the root directory of your web server (e.g., wwwroot in Adobe ColdFusion). Restart the service after placing the file for the changes to take effect.

<cfquery name="JDBCODBCQuery" dataSource="CDataJDBCODBC"> SELECT * FROM Account WHERE Id = <cfqueryparam value="#Id#" cfsqltype="cf_sql_varchar"> </cfquery> <cfdump var="#JDBCODBCQuery#">

Below is the equivalent in CFScript:


<cfscript>
result = queryExecute(
  "SELECT * FROM Account WHERE Id = ?", 
  [
    { value="1", cfsqltype="cf_sql_varchar" }
  ],
  { datasource="CDataJDBCODBC" }
);

writeDump( var= result );
</cfscript> 

You can then make requests to your .cfm like the following:

http://MyServer:8500/query.cfm?Id=1

Ready to get started?

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Learn more:

ODBC Connectivity from Java Icon JDBC-ODBC Bridge Driver

The JDBC-ODBC Bridge provides JDBC access from any Java App to ODBC data sources on Windows, Linux and Mac. Whether your organization uses Java-based tools for reporting and analytics, or builds custom Java solutions, the CData JDBC-ODBC Bridge provides an easy way to connect with any ODBC data source.