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Get the Report →Import Real-Time Snowflake Data in ColdFusion to Build Applications
Use CData JDBC drivers to import and use Snowflake 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 JDBC Driver for Snowflake, you can link your ColdFusion web and mobile applications to operational Snowflake data. This allows for your applications to be more robust and complete. This article details how to use the JDBC driver to create a table populated with Snowflake data from within a ColdFusion markup file.
With built-in optimized data processing, the CData JDBC Driver offers unmatched performance for interacting with live Snowflake data. When you issue complex SQL queries to Snowflake, the driver pushes supported SQL operations, like filters and aggregations, directly to Snowflake and utilizes the embedded SQL engine to process unsupported operations client-side (often SQL functions and JOIN operations). Its built-in dynamic metadata querying allows you to work with and analyze Snowflake data using native data types.
Configuring the Connection to Snowflake
You will need a JDBC connection string to establish a connection between Coldfusion and Snowflake.
To connect to Snowflake:
- Set User and Password to your Snowflake credentials and set the AuthScheme property to PASSWORD or OKTA.
- Set URL to the URL of the Snowflake instance (i.e.: https://myaccount.snowflakecomputing.com).
- Set Warehouse to the Snowflake warehouse.
- (Optional) Set Account to your Snowflake account if your URL does not conform to the format above.
- (Optional) Set Database and Schema to restrict the tables and views exposed.
See the Getting Started guide in the CData driver documentation for more information.
Built-in Connection String Designer
For assistance in constructing the JDBC URL, use the connection string designer built into the Snowflake JDBC Driver. Either double-click the JAR file or execute the jar file from the command-line.
java -jar cdata.jdbc.snowflake.jar
Adding a Data Source and Creating a Table
After configuring the connection, follow the steps below to add the CData JDBC Driver to ColdFusion's lib directory, add a new data source, test the connection, create a ColdFusion markup file, and, finally, make a real-time connection with Snowflake data and display it in a table written in the ColdFusion Markup Language, or CFML:
-
Copy the JDBC Driver for Snowflake and lic file from "C:\Program Files\CData[product_name]\lib" to
"C:\ColdFusion2021\cfusion\wwwroot\WEB-INF\lib".
cdata.jdbc.snowflake.jar cdata.jdbc.snowflake.lic
Note: If you do not copy the .lic file with the jar, you will see a licensing error that indicates you do not have a valid license installed. This is true for both the trial and full versions.
- From the ColdFusion administrator interface, choose Data & Services.
- Here, we can "Add New Data Source". The data source name can be any name, provided it conforms to the ColdFusion variable naming conventions. For our JDBC driver, choose "other", then click the "Add" button.
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Next, populate the driver properties.
- JDBC URL will need to be in the format: jdbc:snowflake:|connectionString|.
- A typical connection string looks like this:
jdbc:snowflake:User=Admin;Password=test123;Server=localhost;Database=Northwind;Warehouse=TestWarehouse;Account=Tester1;
- The Driver Class is: cdata.jdbc.snowflake.SnowflakeDriver
- The Driver Name is arbitrary and simply used to recognize the data source in the ColdFusion administration console.
- Now, test the connection by clicking the check mark to the left of the CDataSnowflakeJDBC data source you just created. When the data source reports an "OK" status, it is ready for use.
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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="SnowflakeQuery" dataSource="CDataSnowflakeJDBC"> SELECT * FROM Products </cfquery>
And a CFTable can be used to quickly output the table in HTML:<cftable query = "SnowflakeQuery" border = "1" colHeaders colSpacing = "2" headerLines = "2" HTMLTable maxRows = "500" startRow = "1"> <cfcol header="<b>Id</b>" align="Left" width=2 text="Id"/> <cfcol header="<b>ProductName</b>" align="Left" width=15 text="ProductName"/> ... </cftable>
Full code, including the HTML portion is available below:<html> <head><title>CData Software | Snowflake Products Table Demo </title></head> <body> <cfoutput>#ucase("Snowflake Products Table Demo")#</cfoutput> <cfquery name="SnowflakeQuery" dataSource="CDataSnowflakeJDBC"> SELECT * FROM Products </cfquery> <cftable query = "SnowflakeQuery" border = "1" colHeaders colSpacing = "2" headerLines = "2" HTMLTable maxRows = "500" startRow = "1"> <cfcol header="<b>Id</b>" align="Left" width=2 text="Id"/> <cfcol header="<b>ProductName</b>" align="Left" width=15 text="ProductName"/> ... </cftable> </body> </html>
- Finally, run the code locally in a browser at the default port of 8500. It produces a table populated with Snowflake data!
As a note, the CData JDBC 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 JDBC Driver for Snowflake and start building Snowflake-connected applications with Adobe ColdFusion. Reach out to our Support Team if you have any questions.