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

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’