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Connect to HPCC Systems Data in Squirrel SQL Client

Connect to HPCC Systems data and execute queries in the Squirrel SQL Client.

The CData JDBC Driver for HPCC Systems enables you to execute queries to HPCC Systems data in tools like Squirrel SQL Client. In this article, you will create a JDBC data source for HPCC Systems data and execute queries.

Add the JDBC Driver for HPCC Systems

Follow the steps below to add the driver JAR.

  1. In Squirrel SQL, click Windows -> View Drivers.
  2. Click the plus icon to open the Add Driver wizard.
  3. In the Name box, enter a user-friendly name for the driver; for example, CData JDBC Driver for HPCC Systems.
  4. In the Example URL box, enter jdbc:hpcc:
  5. In the Extra Class Path tab, click Add.
  6. In the file explorer dialog that opens, select the JAR file for the driver, located in the lib subfolder of the installation directory.
  7. Click List Drivers to populate the Class Name menu with the class name for the driver, cdata.jdbc.hpcc.HPCCDriver.

Define Connection Properties

Follow the steps below to save connection properties in the driver alias.

  1. Click Windows -> View Aliases.
  2. In the pane that lists the aliases, click the plus icon.
  3. In the Add Alias wizard that opens, the following fields are required for the JDBC driver:

    • Name: Enter a name for the alias; for example, CData HPCC Systems Source.
    • Driver: Select the CData JDBC Driver for HPCC Systems.
    • URL: Enter jdbc:hpcc:
    • Password: Enter the password, which is added to the JDBC URL.
  4. If you want to define any additional properties, click Properties.
  5. In the Driver properties tab of the dialog that appears, select the Use driver properties checkbox.
  6. In the Specify column, select the checkboxes for the required connection properties.

    To connect, set the following connection properties: Set URL to the machine name or IP address of the server and the port the server is running on, for example, https://server:port. The User and Password are required to authenticate to the HPCC Systems cluster specified in the URL. Note that LDAP authentication is not currently supported by our ODBC driver.

    Set Version to the WsSQL Web server version. Note that if you have not already done so, you will need to install the WsSQL service on the HPCC Systems server. The WsSQL Web service is used to interact with the underlying HPCC Systems platform.

    Set Cluster to the target cluster.

    Below is a typical connection string:

    jdbc:hpcc:URL=http://127.0.0.1:8510;User=test;password=xA123456;Version=1;Cluster=hthor;
  7. In the dialog that appears after you click OK, click connect to test the connection.

Discover Schemas and Query HPCC Systems Data

After the metadata has loaded, a new tab for the HPCC Systems data source is displayed. On the Objects subtab, you can discover schema information, such as the available tables and views.

To view table data, select the table on the Objects tab. The table data is then loaded in a grid on the Content tab.

To execute an SQL query, enter the query on the SQL tab and then click Run SQL (the runner icon). For example:

SELECT SUM(hpcc::test::orders.Price), hpcc::test::customers.CustomerName FROM hpcc::test::orders INNER JOIN hpcc::test::customers ON hpcc::test::orders.CustomerId=hpcc::test::customers.CustomerId;GROUP BY hpcc::test::customers.CustomerName