Validate MongoDB Data with QuerySurge

QuerySurge is a smart data testing solution that automates data validation and testing. When paired with the CData JDBC Driver for MongoDB, QuerySurge can work with live MongoDB data. This article walks through connecting to MongoDB data from QuerySurge.

With built-in optimized data processing, the CData JDBC Driver offers unmatched performance for interacting with live MongoDB data. When you issue complex SQL queries 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 client-side (often SQL functions and JOIN operations). Its built-in dynamic metadata querying allows you to work with and analyze MongoDB data using native data types.

Connecting to MongoDB Data in QuerySurge

To connect to live MongoDB data from QuerySurge, you need to deploy the JDBC Driver JAR file to your QuerySurge Agent(s) and add a new connection from the QuerySurge Admin view.

Deploy the JDBC Driver

1. Download the CData JDBC Driver for MongoDB installer, unzip the package, and run the JAR file to install the driver.
2. Once the driver is installed, stop the Agent Service.
3. Copy the JAR File (and license file if it exists) from the installation location (typically C:\Program Files\CData\CData JDBC Driver for MongoDB\lib\) to your Agent(s) (QuerySurge_install_dir\agent\jdbc).
4. Restart the Agent Service.

For more information on deploying JDBC drivers for QuerySurge, refer to the QuerySurge Knowledge Base.

Configure a New Connection to MongoDB

1. Log into QuerySurge and navigate to the Admin view.
2. Click Configuration -> Connections in the Administration Tree.
3. Click Add to create a new connection.
4. In the QuerySurge Connection Wizard, click Next.
5. Name the connection (e.g. CData JDBC Connection to MongoDB).
6. Set the Data Source to "All Other JDBC Connections (Connection Extensibility)" and click Next.
7. Set the Driver Class to cdata.jdbc.mongodb.MongoDBDriver and click Next.

8. Set the Connection URL using the necessary connection properties to authenticate with MongoDB. Your Connection URL will look something like the following:

   jdbc:mongodb:Server=MyServer;Port=27017;Database=test;User=test;Password=Password;

   Built-in Connection String Designer

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

   java -jar cdata.jdbc.mongodb.jar

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

   Set the Server, Database, User, and Password connection properties to connect to MongoDB. To access MongoDB collections as tables you can use automatic schema discovery or write your own schema definitions. Schemas are defined in .rsd files, which have a simple format. You can also execute free-form queries that are not tied to the schema.

9. Set the Test Query to enable the Test Connection button for the Connection (e.g. SELECT * FROM restaurants LIMIT 1) and click Next.
10. Click Test Connection to ensure the connection is configured properly and click Save to add the connection.

Once the connection is added, you can write SQL queries against your MongoDB data in QuerySurge.

Compare MongoDB Data Queries with a QueryPair

With the connection configured, you can follow the steps below to compare querying MongoDB data with a QueryPair.

1. Select "Design Library" from the Design Menu
2. Click QueryPairs under QuerySurge Design
3. Click "Create New QueryPair"
4. Name the QueryPair and click Save
5. In either the Source or Target panes, select the connection created above (select the same connection to query MongoDB twice or another connection to perform a comparison)
6. Write queries in the Editor for each pane, e.g. SELECT * FROM restaurants
7. Click the "Design-Time Run" tab to execute the queries
8. When the query execution is finished, click "View Query Results" to see the MongoDB data returned by the query

Download a free, 30-day trial of the CData JDBC Driver for MongoDB and start working with your live MongoDB data in QuerySurge. Reach out to our Support Team if you have any questions.