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  1. Preface
  2. XML Concepts
  3. Using XML with PowerCenter
  4. Working with XML Sources
  5. Using the XML Editor
  6. Working with XML Targets
  7. XML Source Qualifier Transformation
  8. Midstream XML Transformations
  9. XML Datatype Reference
  10. XPath Query Functions Reference

XML Guide

XML Guide

Rules and Guidelines for Entity Relationships

Rules and Guidelines for Entity Relationships

The Designer generates entities based on the following guidelines:
  • An entity represents a portion of an XML, DTD, or XML schema hierarchy. This hierarchy does not need to start at the root of the XML file.
  • The Designer uses entities defined in a DTD file to create entity relationships.
  • The Designer uses type structures defined in an XML schema to generate entity relationships.
  • The Designer creates a new entity when it encounters a multiple-occurring element under a parent element.
  • The Designer generates a separate view for each member of a substitution group.
  • The Designer generates primary keys and foreign keys to relate separate entities.

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