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Amazon Redshift Icon Amazon Redshift ODBC Driver

The Amazon Redshift ODBC Driver is a powerful tool that allows you to connect with live Amazon Redshift data, directly from any applications that support ODBC connectivity.

Read, write, and update Amazon Redshift data through a standard ODBC Driver interface.

Import Real-Time Redshift Data in ColdFusion to Build Applications



Use the CData ODBC Driver for Amazon Redshift to import and use Redshift data in ColdFusion.

Adobe ColdFusion is a web and mobile application development platform. It uses its own scripting language, ColdFusion Markup Language (CFML), to create data-driven websites as well as generate remote services, such as REST. When ColdFusion is paired with the CData ODBC Driver for Amazon Redshift, you can link your ColdFusion web and mobile applications to operational Redshift data. This allows for your applications to be more robust and complete. This article details how to use the ODBC driver to create a table populated with Redshift data from within a ColdFusion markup file.

To follow along with this tutorial, you need to install the CData ODBC Driver for Amazon Redshift and Adobe ColdFusion.

Configuring the Connection

If you have not already, first specify connection properties in an ODBC DSN (Data Source Name). This is the last step of the driver installation process. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

To connect to Redshift, set the following:

  • Server: Set this to the host name or IP address of the cluster hosting the Database you want to connect to.
  • Port: Set this to the port of the cluster.
  • Database: Set this to the name of the database. Or, leave this blank to use the default database of the authenticated user.
  • User: Set this to the username you want to use to authenticate to the Server.
  • Password: Set this to the password you want to use to authenticate to the Server.

You can obtain the Server and Port values in the AWS Management Console:

  1. Open the Amazon Redshift console (http://console.aws.amazon.com/redshift).
  2. On the Clusters page, click the name of the cluster.
  3. On the Configuration tab for the cluster, copy the cluster URL from the connection strings displayed.

Adding a Data Source and Creating a Table

After creating a DSN, follow the steps below to add a new data source, test our connection to it, create a ColdFusion markup file, and, finally, import Redshift Redshift data and display it in a table in ColdFusion:

  1. From the ColdFusion administrator interface, choose Data & Services.
  2. Here, click "Add New Data Source". The data source name can be any name, provided it conforms to the ColdFusion variable naming conventions. For our ODBC driver, choose "ODBC Socket", then click the "Add" button.
  3. From the ODBC DSN Dropdown menu select CData Redshift Sys. Under the Advanced Settings section, leave the Connection String blank. Note that any properties specified in this input field will override the ones specified in the DSN Configuration.
  4. Now, test the connection by pressing the check mark to the left of the CDataRedshiftODBC data source you just created. When the data source reports an "OK" status, it is ready for use.
  5. Next, create a new ColdFusion Markup file (.cfm) and place it in the wwwroot directory ("C:\ColdFusion2021\cfusion\wwwroot") for ColdFusion.

    The following code queries the data source:

                
            <cfquery name="RedshiftQuery" dataSource="CDataRedshiftODBC"> 
              SELECT * FROM Orders 
            </cfquery> 
        
    And a CFTable can be used to quickly output the table in HTML:
                
              <cftable  
              query = "RedshiftQuery" 
              border = "1" 
              colHeaders 
              colSpacing = "2" 
              headerLines = "2" 
              HTMLTable 
              maxRows = "500" 
              startRow = "1"> 
    
              <cfcol header="<b>ShipName</b>" align="Left" width=2 text="ShipName"/> 
    
              <cfcol header="<b>ShipCity</b>" align="Left" width=15 text="ShipCity"/> 
    
              ...
    
            </cftable> 
        
    Full code, including the HTML portion is available below:
                
            <html> 
            <head><title>CData Software | Redshift Orders Table Demo </title></head> 
            <body> 
            <cfoutput>#ucase("Redshift Orders Table Demo")#</cfoutput> 
            <cfquery name="RedshiftQuery" dataSource="CDataRedshiftODBC"> 
    
              SELECT * FROM Orders 
    
            </cfquery> 
            <cftable  
              query = "RedshiftQuery" 
              border = "1" 
              colHeaders 
              colSpacing = "2" 
              headerLines = "2" 
              HTMLTable 
              maxRows = "500" 
              startRow = "1"> 
              <cfcol header="<b>ShipName</b>" align="Left" width=2 text="ShipName"/> 
    
              <cfcol header="<b>ShipCity</b>" align="Left" width=15 text="ShipCity"/> 
    
              ...
    
            </cftable> 
            </body> 
    
            </html>  
        
  6. Finally, run the code in a browser. It produces a table populated with Redshift data!

As a note, the CData ODBC Drivers also support parameterized queries using the cfqueryparam element. For example: SELECT * FROM Account WHERE name =

Get Started Today

Download a free, 30-day trial of the CData ODBC Driver for Redshift and start building Redshift-connected applications with Adobe ColdFusion. Reach out to our Support Team if you have any questions.