Create a Join Node

A Join node requires you to specify two or more Data Source nodes and at least one output column.

Joins are sometimes very slow. If you materialize the join input as an indexed table, then the join may be much faster.

The output of Join is a data flow. To materialize it as a table or view, connect it to a Create Table or View node.

Follow these steps to join two or more Data Source nodes:

1. Identify or create at least two nodes to join. The nodes can be any nodes that provide a data flow, including Data Source nodes.

2. In the Components pane, expand the Transform node.
   If the Components pane is not open, then go to View and click Components.

3. Drag and drop the Join node from the Components pane to the Workflow pane. This adds the Join node to the workflow.

4. Connect the Data Source nodes to be joined to the Join node:

   1. Move the cursor to one of the nodes to join.

   2. Right-click the node, and select Connect.

   3. Draw a line to the Join node and click again.

   4. Repeat until all nodes to join are connected to the Join node.

5. Right-click the Join node and select Edit. Use the Edit Join Node option to define the Join node.

6. Right-click the Join node and select Run. Monitor the running of the node in the Workflow Jobs.
   If the Workflow Jobs is not open, then go to View and click Data Miner. Under Data Miner, click Workflow Jobs.

7. After the running of the node is complete, right-click the Join node and select View Data to view the results of the join.

You can also define the join and view results through the Join Node Properties.