Data Transformation Engine Design Studio Tutorial

Chapter 1 - Mapping Basics Map Rules
Design Studio Tutorial
39
To contract the icon in the Label output card
1 Click the minus sign (-) to the left of the Label group type to hide its
components.
The components of the Label group are contracted.
Map Rules
Map rules are used in output cards of a map to define how output data is built.
Map rules are required for output data generation. If there is no map rule, there is
no output data.
Each output card has a rule column in which you enter map rules. Each map rule
begins with an equal sign (=), followed by an expression.
♦ A map rule is an expression that evaluates to data.
♦ An expression is any valid combination of literals, data object names,
operators, functions, and map names.
The expression in a map rule generates the desired data. Map rules are entered in
the Rule Bar. Portions of the map rule are visible in the rule cell on the output
card.
You edit and view the map rule in the Rule Bar, which can be docked or floated.