Table of Contents

Search

  1. Preface
  2. Transformations
  3. Source transformation
  4. Target transformation
  5. Access Policy transformation
  6. Aggregator transformation
  7. Cleanse transformation
  8. Data Masking transformation
  9. Data Services transformation
  10. Deduplicate transformation
  11. Expression transformation
  12. Filter transformation
  13. Hierarchy Builder transformation
  14. Hierarchy Parser transformation
  15. Hierarchy Processor transformation
  16. Input transformation
  17. Java transformation
  18. Java transformation API reference
  19. Joiner transformation
  20. Labeler transformation
  21. Lookup transformation
  22. Machine Learning transformation
  23. Mapplet transformation
  24. Normalizer transformation
  25. Output transformation
  26. Parse transformation
  27. Python transformation
  28. Rank transformation
  29. Router transformation
  30. Rule Specification transformation
  31. Sequence Generator transformation
  32. Sorter transformation
  33. SQL transformation
  34. Structure Parser transformation
  35. Transaction Control transformation
  36. Union transformation
  37. Velocity transformation
  38. Verifier transformation
  39. 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’

0 COMMENTS

We’d like to hear from you!