Data Transformation Engine Design Studio Tutorial

Chapter 10 - Data Break by Value Summary
Design Studio Tutorial
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For the output card, enter a map rule on the #POs data object. Use the
COUNT
function to count the purchase orders (PO) in the input file.
You want the map to generate a file that contains just one field that gives the
count of the purchase orders in the input file.
Build and run the MakeCountFile map. View the run results.
The content of the countpo.txt indicates there are two (2) purchase orders.
Note Close all maps, type trees, and text files.
Summary
You learned to determine a break in the data when the value of a certain item
changed. You also learned to eliminate a type tree analysis error message about
distinguishability by using a component rule to find the last record.