Data Source
Data Source nodes provide connections to the input data.
Prerequisites
You have added the Data Source node to the canvas, and clicked the Configure (gear) icon.
Context
There are two ways to include a Data Source node in your flowgraph. When creating a new flowgraph, there is a Source option above the canvas where you can select the source object. The other method is by selecting the + icon on the canvas and selecting Data Source.
Procedure
- Click Select Dataset and choose one of your defined data sets.
- The columns are shown.
- (Optional) Click + to define additional columns. Select a datatype. Under the Primary Key column, select a column that serves as the primary key. Typically the data in this column is unique. Choose whether the column value can be empty (nullable).
- (Optional) To reorder the columns, click the up and down arrow icon. Select the column that you want to move and click the up or down arrows. Click Apply.
- When you have finished configuring the node, click Apply to return to the canvas.
