Table of Contents

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  1. Preface
  2. Transformations
  3. Source transformation
  4. Target transformation
  5. Access Policy transformation
  6. Aggregator transformation
  7. Cleanse transformation
  8. Data Masking transformation
  9. Data Services transformation
  10. Deduplicate transformation
  11. Expression transformation
  12. Filter transformation
  13. Hierarchy Builder transformation
  14. Hierarchy Parser transformation
  15. Hierarchy Processor transformation
  16. Input transformation
  17. Java transformation
  18. Java transformation API reference
  19. Joiner transformation
  20. Labeler transformation
  21. Lookup transformation
  22. Machine Learning transformation
  23. Mapplet transformation
  24. Normalizer transformation
  25. Output transformation
  26. Parse transformation
  27. Python transformation
  28. Rank transformation
  29. Router transformation
  30. Rule Specification transformation
  31. Sequence Generator transformation
  32. Sorter transformation
  33. SQL transformation
  34. Structure Parser transformation
  35. Transaction Control transformation
  36. Union transformation
  37. Velocity transformation
  38. Verifier transformation
  39. Web Services transformation

Transformations

Transformations

Relational to hierarchical data processing

Relational to hierarchical data processing

In a mapping that converts relational data to hierarchical output, you can have up to five relational input groups and write to one hierarchical output group. This transformation allows you to create structs and arrays. It also allows you to join data sources, group by and order by data fields, filter for specific information, and aggregate both the input and output data.
The following image shows an example mapping:
The mapping contains three Source transformations that are connected to a Hierarchy Processor transformation that is connected to one Target transformation.
In this mapping, the source input includes three relational files: customer address data, purchase orders, and purchase order details. The data flows into one complex file that combines data from the three source files.

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