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  • PowerCenter 10.4.0
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Table of Contents

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  1. Preface
  2. Understanding Mapping Architect for Visio
  3. Mapping Templates
  4. Mapping Objects
  5. Mapping Template Rules
  6. Using the Import Mapping Template Wizard
  7. Using the mapgen Command Line Program
  8. Using Informatica Mapping Templates
  9. Glossary

Mapping Architect for Visio Guide

Mapping Architect for Visio Guide

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Expressions in Transformations

Expressions in Transformations

Create expressions for the output ports when you configure the following transformations:
  • Aggregator transformation
  • Expression transformation
  • Rank transformation
When you configure these transformations, you can enter an expression on the Configuration tab in the Transformation Details window.
Mapping Architect for Visio does not validate the expression. Make sure that you enter a valid expression. When you create an expression, use the following rules and guidelines:
  • Do not use semicolons in an expression.
  • The precision and scale values must be integers that do not exceed 10 digits.
  • The value of the precision must be greater than the scale.
By default, the ports for which you create the expressions are output ports. When you create the expression for a transformation port, you can change the port type to variable.
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