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  1. Preface
  2. The Transformation Language
  3. Constants
  4. Operators
  5. Variables
  6. Dates
  7. Functions

Transformation Language Reference

Transformation Language Reference

Ports and Return Values

Ports and Return Values

When you write an expression that includes a port or return value from an unconnected transformation, use the reference qualifiers in the following table:
Reference Qualifier
Description
:LKP
Required when you create an expression that includes the return value from an unconnected Lookup transformation. The general syntax is:
:LKP.lookup_transformation(argument1, argument2, ...)
The arguments are the local ports used in the lookup condition. The order must match the order of the ports in the transformation. The datatypes for the local ports must match the datatype of the Lookup ports used in the lookup condition.

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