Table of Contents

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  1. Preface
  2. Working with Transformations
  3. Aggregator Transformation
  4. Custom Transformation
  5. Custom Transformation Functions
  6. Data Masking Transformation
  7. Data Masking Examples
  8. Expression Transformation
  9. External Procedure Transformation
  10. Filter Transformation
  11. HTTP Transformation
  12. Identity Resolution Transformation
  13. Java Transformation
  14. Java Transformation API Reference
  15. Java Expressions
  16. Java Transformation Example
  17. Joiner Transformation
  18. Lookup Transformation
  19. Lookup Caches
  20. Dynamic Lookup Cache
  21. Normalizer Transformation
  22. Rank Transformation
  23. Router Transformation
  24. Sequence Generator Transformation
  25. Sorter Transformation
  26. Source Qualifier Transformation
  27. SQL Transformation
  28. Using the SQL Transformation in a Mapping
  29. Stored Procedure Transformation
  30. Transaction Control Transformation
  31. Union Transformation
  32. Unstructured Data Transformation
  33. Update Strategy Transformation
  34. XML Transformations

Transformation Guide

Transformation Guide

Sorting Data

Sorting Data

The Sorter transformation contains only input/output ports. All data passing through the Sorter transformation is sorted according to a sort key. The sort key is one or more ports that you want to use as the sort criteria.
You can specify more than one port as part of the sort key. When you specify multiple ports for the sort key, the Integration Service sorts each port sequentially. The order the ports appear in the Ports tab determines the succession of sort operations. The Sorter transformation treats the data passing through each successive sort key port as a secondary sort of the previous port.
At session run time, the Integration Service sorts data according to the sort order specified in the session properties. The sort order determines the sorting criteria for special characters and symbols.
The following figure shows the Ports tab configuration for the Sorter transformation sorting the data in ascending order by order ID and item ID:
The Ports tab in the Edit Transformations dialog box contains the port name, datatype, precision, scale, input, output, key, and direction columns. The direction column shows Ascending for the order ID and item ID ports. The tab also contains the Select transformation, Transformation type, Default value, and Description fields.
At session run time, the Integration Service passes the following rows into the Sorter transformation:
ORDER_ID
ITEM_ID
QUANTITY
DISCOUNT
45
123456
3
3.04
45
456789
2
12.02
43
000246
6
34.55
41
000468
5
.56
After sorting the data, the Integration Service passes the following rows out of the Sorter transformation:
ORDER_ID
ITEM_ID
QUANTITY
DISCOUNT
41
000468
5
.56
43
000246
6
34.55
45
123456
3
3.04
45
456789
2
12.02

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