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

Source filtering and sorting

Source filtering and sorting

You can configure the Source transformation to filter or sort data before the data enters the data flow. Use the source query options to filter or sort source data.
Configure the query options on the
Source
tab of the Source transformation. Expand the
Query Options
section, and configure the filter and sort conditions.
You can use the following source query options:
Filter
Filter source data to limit the amount of source data that enters the data flow.
When you configure a filter, you select the source field and configure the operator and value to use in the filter. When you configure more than one filter, the task applies the filter expressions in the listed order.
You can use a parameter for a filter expression and define the filter expression in the task.
You can also configure an advanced filter to create a filter expression using the expression editor. You can use an input parameter for one of the fields, to be selected when the task runs. You can reuse the same parameter in an Expression transformation to create a field expression and in the Target transformation.
Sort
You can sort source data to provide sorted data to the mapping. For example, you can improve task performance when you provide sorted data to an Aggregator transformation that uses sorted data.
When you sort data, you select one or more source fields. When you select more than one source field, the task sorts the fields in the listed order. Data in each field is sorted in ascending order.
You can use parameters for the sort fields and define the sort fields in the task.