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

Masking String Values

Masking String Values

You can configure key masking for strings to generate repeatable output. Configure a mask format to define limitations for each character in the output string, define a mask format. Configure source string characters and result string replacement characters that define the source characters to mask and the characters to mask them with.
The following figure shows key masking properties for a string datatype:
The Masking Properties tab in the Edit Transformations dialog box contains the port name, datatype, precision, scale, masking, and associated O/P columns. The tab also contains the Seed, Mapping Parameter, Mask Format, Source String Characters, and Result String Replacement Characters fields.
You can configure the following masking rules for key masking string values:
  • Seed.
    Apply a seed value to generate deterministic masked data for a column. Select one of the following options:
    • Value.
      Accept the default seed value or enter a number between 1 and 1,000.
    • Mapping Parameter
      . Use a mapping parameter to define the seed value. The Designer displays a list of the mapping parameters that you create for the mapping. Choose the mapping parameter from the list to use as the seed value.
  • Mask Format.
    Define the type of character to substitute for each character in the input data. You can limit each character to an alphabetic, numeric, or alphanumeric character type.
  • Source String Characters.
    Define the characters in the source string that you want to mask. For example, mask the number sign (#) character whenever it occurs in the input data. The Data Masking transformation masks all the input characters when Source String Characters is blank. The Data Masking transformation does not always return unique data if the number of source string characters is less than the number of result string characters.
  • Result String Characters.
    Substitute the characters in the target string with the characters you define in Result String Characters. For example, enter the following characters to configure each mask to contain all uppercase alphabetic characters:
    ABCDEFGHIJKLMNOPQRSTUVWXYZ

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