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. Data Services transformation
  9. Deduplicate transformation
  10. Expression transformation
  11. Filter transformation
  12. Hierarchy Builder transformation
  13. Hierarchy Parser transformation
  14. Hierarchy Processor transformation
  15. Input transformation
  16. Java transformation
  17. Java transformation API reference
  18. Joiner transformation
  19. Labeler transformation
  20. Lookup transformation
  21. Machine Learning transformation
  22. Mapplet transformation
  23. Normalizer transformation
  24. Output transformation
  25. Parse transformation
  26. Python transformation
  27. Rank transformation
  28. Router transformation
  29. Rule Specification transformation
  30. Sequence Generator transformation
  31. Sorter transformation
  32. SQL transformation
  33. Structure Parser transformation
  34. Transaction Control transformation
  35. Union transformation
  36. Velocity transformation
  37. Verifier transformation
  38. Web Services transformation

Transformations

Transformations

Static SQL queries

Static SQL queries

Create a static SQL query when you need to run the same query statements for each input row, but you want to change the data in the query for each input row. When you create a static SQL query, you use parameter binding in the SQL editor to define parameters for query data.
To change the data in the query, you configure query parameters and bind them to input fields in the transformation. When you bind a parameter to an input field, you identify the field by name in the query. Enclose the field name in question marks (
?
). The query data changes based on the value of the data in the input field.
For example, the following static queries use parameter binding:
DELETE FROM Employee WHERE Dept = ?Dept? INSERT INTO Employee(Employee_ID, Dept) VALUES (?Employee_ID?, ?Dept?) UPDATE Employee SET Dept = ?Dept? WHERE Employee_ID > 100

Example

The following static SQL query uses query parameters that bind to the Employee_ID and Dept input fields of an SQL transformation:
SELECT Name, Address FROM Employees WHERE Employee_Num = ?Employee_ID? and Dept = ?Dept?
The source has the following rows:
Employee_ID
Dept
100
Products
123
HR
130
Accounting
Data Integration
generates the following query statements from the rows:
SELECT Name, Address FROM Employees WHERE Employee_ID = ‘100’ and DEPT = ‘Products’ SELECT Name, Address FROM Employees WHERE Employee_ID = ‘123’ and DEPT = ‘HR’ SELECT Name, Address FROM Employees WHERE Employee_ID = ‘130’ and DEPT = ‘Accounting’

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