Table of Contents

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

Transformations

Transformations

Defining rank properties

Defining rank properties

When you define the rank properties for a Rank transformation, you select the field to rank by, specify the rank order, and specify number of rows to rank by. Define rank properties on the
Rank
tab.
The following image shows the
Rank
tab:
The Rank tab of the Rank transformation defines the rank properties. In this example, the Rank By field is "EMP_SALARY," the rank order is "Top," and the number of rows is "10." Therefore, the transformation ranks the top 10 employees based on the values in the EMP_SALARY field.
Configure the following properties:
Rank By
Specify the field that you want to use for ranking in the
Rank By
field.
For example, you create a Rank transformation to rank the top 10 employees in each department based on salary. The EMP_SALARY field contains the salary for each employee. Select EMP_SALARY as the
Rank By
field.
Rank Order
Specify the rank order in the
Rank Order
field. Select
Top
or
Bottom
.
Number of Rows
Specify the number of rows to include in each rank group in the
Number of Rows
field. For example, to rank the top 10 employees in each department based on salary, enter 10 in the
Number of Rows
field.
You can use a parameter to specify the number of rows. To use a parameter, select
Parameterized
in the
Parameterize Number of Rows
field, and enter the parameter in the
Parameter
field.