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

Query processing

Query processing

You can configure the SQL transformation to process a saved query or a user-entered query that runs against a Microsoft SQL Server or Oracle database. When you configure the SQL transformation to process a query, you create an active transformation. The transformation can return multiple rows for each input row.
When you enter a query, you can format the SQL and validate the syntax. Alternatively, you can create a string parameter to define the query in the mapping task.
You can create the following types of SQL queries:
Static SQL query
The query statement does not change, but you can use query parameters to change the data.
Data Integration
prepares the SQL query once and runs the query for all input rows.
Dynamic SQL query
You can change the query statements and the data.
Data Integration
prepares an SQL query for each input row.
You can optimize performance by creating static queries.