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Connect to and Query MongoDB Data in QlikView over ODBC

Create data visualizations with MongoDB data in QlikView.

The CData ODBC drivers expand your ability to work with data from more than 200 data sources. QlikView is a business discovery platform that provides self-service BI for all business users in an organization. This article outlines simple steps to connect to MongoDB data using the CData ODBC driver and create data visualizations in QlikView.

The CData ODBC drivers offer unmatched performance for interacting with live MongoDB data in QlikView due to optimized data processing built into the driver. When you issue complex SQL queries from QlikView to MongoDB, the driver pushes supported SQL operations, like filters and aggregations, directly to MongoDB and utilizes the embedded SQL engine to process unsupported operations (often SQL functions and JOIN operations) client-side. With built-in dynamic metadata querying, you can visualize and analyze MongoDB data using native QlikView data types.

Connect to MongoDB as an ODBC Data Source




Populate a Chart with MongoDB Data


SELECT borough, cuisine FROM restaurants
  3. Select the DSN (CData MongoDB Sys) in the resulting dialog. A command like the following is generated: ODBC CONNECT TO [CData MongoDB Sys];
  4. Enter the SQL query directly into the script with the SQL command (or click Select to build the query in the SELECT statement wizard). SQL SELECT borough, cuisine FROM restaurants;

    Where possible, the SQL operations in the query, like filters and aggregations, will be pushed down to MongoDB, while any unsupported operations (which can include SQL functions and JOIN operations) will be managed client-side by the CData SQL engine embedded in the driver.

  6. Click Tools -> Quick Chart Wizard. In the wizard, select the chart type. This example uses a bar chart. When building the chart, you have access to the fields from MongoDB, typed appropriately for QlikView, thanks to built-in dynamic metadata querying.
  7. When defining Dimensions, select borough in the First Dimension menu.
  8. When defining Expressions, click the summary function you want and select cuisine in the menu.
  9. Finish the wizard to generate the chart. The CData ODBC Driver for MongoDB connects to live MongoDB data, so the chart can be refreshed to see real-time changes. Live connections are possible and effective, thanks to the high-performance data processing native to CData ODBC Drivers.