Home > Transforms Nodes > Filter Columns > Join > Create 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, as described in Create Table or View Node, the join may be much faster.
The output of Join is a data flow. If you want 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 sources:
Identify or create at least two nodes to join. The nodes can be any nodes that provide a data flow, including Data Source Nodes.
If the Components window is not open, open it using View > Components. Expand the Transforms section.
Click Join. Move the cursor to the workflow; click again.
Connect the data sources to be joined to the Join node:
Move the cursor to one of the nodes to join.
Right-click the node, and select Connect from the context menu.
Draw a line to the Join node; click again.
Repeat until all nodes to join are connected to Join.
Right-click the Join node; select Edit. Use the Edit Join Node dialog to define the Join.
Right-click the Join node; select Run. Monitor the node execution in the Workflow Jobs. If the Workflow Jobs is not open, open it using View >Data Miner> Workflow Jobs.
After the execution completes, 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 using the Join Node Properties.