Build Greenplum Visualizations in Tableau Cloud

Tableau Cloud is an analytics platform fully hosted in the cloud. When paired with CData Connect Cloud, you get instant, cloud-to-cloud access to Greenplum data for visualizations, dashboards, and more. This article shows how to connect to Greenplum and build visualizations from Greenplum data in Tableau Cloud.

CData Connect Cloud provides a pure SQL Server, cloud-to-cloud interface for Greenplum, allowing you to easily build visualizations from live Greenplum data in Tableau Cloud without installing connectors or publishing worksheets and data sources from Tableau Desktop. As you build visualizations, Tableau Cloud generates SQL queries to gather data. Using optimized data processing out of the box, CData Connect Cloud pushes all supported SQL operations (filters, JOINs, etc) directly to Greenplum, leveraging server-side processing to quickly return Greenplum data.

Configure Greenplum Connectivity for Tableau Cloud

Connectivity to Greenplum from Tableau Cloud is made possible through CData Connect Cloud. To work with Greenplum data from Tableau Cloud, we start by creating and configuring a Greenplum connection.

1. Log into Connect Cloud, click Connections and click Add Connection
2. Select "Greenplum" from the Add Connection panel
3. Enter the necessary authentication properties to connect to Greenplum.

   To connect to Greenplum, set the Server, Port (the default port is 5432), and Database connection properties and set the User and Password you wish to use to authenticate to the server. If the Database property is not specified, the default database for the authenticate user is used.

   
4. Click Create & Test
5. Navigate to the Permissions tab in the Add Greenplum Connection page and update the User-based permissions.

Add a Personal Access Token

If you are connecting from a service, application, platform, or framework that does not support OAuth authentication, you can create a Personal Access Token (PAT) to use for authentication. Best practices would dictate that you create a separate PAT for each service, to maintain granularity of access.

1. Click on your username at the top right of the Connect Cloud app and click User Profile.
2. On the User Profile page, scroll down to the Personal Access Tokens section and click Create PAT.
3. Give your PAT a name and click Create.
4. The personal access token is only visible at creation, so be sure to copy it and store it securely for future use.

Configure Greenplum Endpoints for Salesforce Connect

After connecting to Greenplum, create a workspace and virtual dataset for your desired table(s).

1. Navigate to the Virtual Datasets page and click Add to create a new Workspace (or select an existing workspace).
2. Click Add to add new assets to the Workspace.
3. Select the Greenplum connection (e.g. Greenplum1) and click Next.
4. Select the table(s) you wish to work with and click Confirm.
5. Make note of the OData Service URL for your workspace, e.g. https://cloud.cdata.com/api/odata/{workspace_name}

With the connection and Workspace configured, you are ready to connect to Greenplum data from Tableau Cloud.

Visualize Live Greenplum Data in Tableau Cloud

The steps below outline creating a new data source in Tableau Cloud based on the virtual Greenplum database in Connect Cloud and building a simple visualization from the data.

1. Log into Tableau Cloud, select a account, and create a new workbook.
2. In the new workbook, choose the Microsoft SQL Server Connector from the data wizard and fill in the values for your Connect Cloud instance.
   • Set Server to the OData URL for your Workspace, e.g. https://cloud.cdata.com/api/odata/MyWorkspace
   • Set Authentication to Username and Password
   • Set Username to your Connect Cloud username (e.g. [email protected])
   • Set Password to a PAT for the above user
   
3. Select your newly created database and the table(s) you wish to visualize (defining relationships for JOINad tables as needed).

4. Select Dimensions and Measures and configure your visualization.

Real-Time Access to Greenplum Data from Cloud Applications

At this point, you have a direct, cloud-to-cloud connection to live Greenplum data from your Tableau Cloud workbook. You can create new visualizations, build dashboards, and more, with no need to publish data sources and workbooks from Tableau Desktop. For more information on gaining live access to data from more than 100 SaaS, Big Data, and NoSQL sources from cloud applications like Tableau Cloud, refer to our Connect Cloud page.