Sometimes just once is not enough! Some processing within a workflow must be repeated a number of times. For example, reading a number of identical distinct files, replicating the same data sets with different values, performing some actions on different groups of data, and similar situations require looping on the input data set.
KNIME Analytics Platform offers a number of loop options: a finite number of times, on a list of values, on a list of groups, on columns, till a condition is satisfied, and more. You can find most of them described in the learning units below.