A Connection represents a set of tables for a single data source. In order to query data, you'll need at least one connection, as the other connection types depend on connections to provide credentials and other configuration information. Connections are defined at the identity (developer account or organization) level and then attached to workspaces - they can be shared by multiple workspaces within the account or organization.
Connections can be created or deleted from the Connections tab for your developer account or organization. To add a connection, click New Connection, then choose one of the plugins from the list. Enter the required settings for the plugin. Use the Test Connection button to verify your credentials, then click Create.
After the connection is created, you may associate it with a workspace. Click Add to Workspace if you wish to add it to a workspace now, or Skip if you don't want to add it to a workspace at this time. Note that the wizard only prompts to add it to a single workspace, but you can attach your connection to additional workspaces at any time.
To permanently delete a connection, navigate to the the Connections tab for your developer account or organization. From the list, click the connection that you wish to delete. From the properties page for the connection, go to the Settings tab and click Delete Connection. You will be prompted to confirm deletion; enter the connection name and click Delete
Adding Connections to Workspaces
Once a connection is created, you must add it to any workspaces that you wish to use the connection.
You can add and remove connections from the Settings tab for your workspace. Navigate to your workspace, go to the Settings tab, then click Connections from the menu on the left to see a list the connections that are currently attached to the workspace. Click the Add Connection button to add a connection to your workspace. To remove the connection from a workspace, click the options menu ('three dots' button) to the right of the connection, select Remove from the menu.
Alternatively, you can attach connections to your workspace from the Connections tab for your developer account or organization. Navigate to your developer account or organization, and click Connections. You will see a list of connections. Click on a connection in the list to view it. The Workspaces tab will list the workspaces that are currently using the connection. You can attach the connection to another workspace with the Add to Workspace button. To remove the connection from a workspace, click the options menu ('three dots' button) to the right of the workspace, select Remove from the menu.