Table of Contents

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  1. Preface
  2. Working with Transformations
  3. Aggregator Transformation
  4. Custom Transformation
  5. Custom Transformation Functions
  6. Data Masking Transformation
  7. Data Masking Examples
  8. Expression Transformation
  9. External Procedure Transformation
  10. Filter Transformation
  11. HTTP Transformation
  12. Identity Resolution Transformation
  13. Java Transformation
  14. Java Transformation API Reference
  15. Java Expressions
  16. Java Transformation Example
  17. Joiner Transformation
  18. Lookup Transformation
  19. Lookup Caches
  20. Dynamic Lookup Cache
  21. Normalizer Transformation
  22. Rank Transformation
  23. Router Transformation
  24. Sequence Generator Transformation
  25. Sorter Transformation
  26. Source Qualifier Transformation
  27. SQL Transformation
  28. Using the SQL Transformation in a Mapping
  29. Stored Procedure Transformation
  30. Transaction Control Transformation
  31. Union Transformation
  32. Unstructured Data Transformation
  33. Update Strategy Transformation
  34. XML Transformations

Transformation Guide

Transformation Guide

Mapping Parameters

Mapping Parameters

You can use a mapping parameter to define a seed value. Create a mapping parameter for each seed value that you want to add to the transformation. The mapping parameter value is a number between 1 and 1,000.
When you configure data masking for a column, select Mapping Parameter for the seed. The Designer displays a list of the mapping parameters. Select a mapping parameter from the list. Before you run a session, you can change the mapping parameter value in a parameter file for the session.
Create the mapping parameters before you create the Data Masking transformation. If you choose to parametrize the seed value and the mapping has no mapping parameters, an error appears. If you select a port with a masking rule that references a deleted mapping parameter, the Designer generates a new random seed value for the port. The seed value is not a mapping parameter. A message appears that the mapping parameter is deleted and the Designer creates a new seed value.
The Integration Service applies a default seed value in the following circumstances:
  • The mapping parameter option is selected for a column but the session has no parameter file.
  • You delete the mapping parameter.
  • A mapping parameter seed value is not between 1 and 1,000.
The Integration Service applies masked values from the default value file. You can edit the default value file to change the default values.
The default value file is an XML file in the following location:
<PowerCenter Installation Directory>\infa_shared\SrcFiles\defaultValue.xml
The name-value pair for the seed is
default_seed = "500".
If the seed value in the default value file is not between 1 and 1,000, the Integration Service assigns a value of 725 to the seed and writes a message in the session log.

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