Exercise3

Note

Since KNIME has been thought in terms of data table, loops are rarely needed. Before using a loop make sure that a dedicated node for what you have in mind does not exist!

Workflow: Chapter 7/Exercise 3

In this exercise, we clean up a file from duplicates. The easiest way would be to use a GroupBy node, group by contract IDs and take only the first item in the group.

A more complex way would be using a group loop.

But we choose the most complex way of all, through a Table Row to Variable Loop Start just to show how the Table Row to Variable Loop works.