Data Transformation Engine Map Designer Reference Guide

Chapter 8 - Functional Map Basics Functional Maps
Map Designer Reference Guide
137
The following example shows a data source of three input records. A functional
map provides a way to map one input record to one output record. The functional
map defines the first input record that generates the first output record. Next, the
second input record generates the second output record. The third input record
generates the third output record. The result is three output records. The following
diagram shows how the process works:
Input
Record
1
Input
Record
2
Input
Record
3
Functional
M
ap
Input
Record
1
Output
Record
1
Functional
M
ap
Input
Record
2
Output
Record
2
Functional
M
ap
Input
Record
3
Output
Record
3
Output
Record
1
Output
Record
2
Output
Record
3
Input data structure:
The process:
Output data structure: