Table of Contents

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  1. Preface
  2. Introduction to Data Transformation
  3. Data Processor Transformation
  4. Wizard Input and Output Formats
  5. Relational Input and Output
  6. XMap
  7. Libraries
  8. Schema Object
  9. Command Line Interface
  10. Scripts
  11. Parsers
  12. Script Ports
  13. Document Processors
  14. Formats
  15. Data Holders
  16. Anchors
  17. Transformers
  18. Actions
  19. Serializers
  20. Mappers
  21. Locators, Keys, and Indexing
  22. Streamers
  23. Validators, Notifications, and Failure Handling
  24. Validation Rules
  25. Custom Script Components

Data Transformation User Guide

Data Transformation User Guide

Sibling and Non-Sibling Occurrences

Sibling and Non-Sibling Occurrences

A key uniquely identifies sibling occurrences of an element. It is permitted for non-sibling occurrences to have the same key.
Consider the following XML structure:
<Report> <Company> <Employee ID="1">John</Employee> <Employee ID="2">Leslie</Employee> </Company> <Company> <Employee ID="1">Marie</Employee> <Employee ID="2">Larry</Employee> </Company> </Report>
The
ID
attribute can be a valid key for
Employee
because it uniquely identifies an
Employee
within a single
Company
. The duplication of
ID
values in different
Company
elements does not invalidate the key.