11. Relational Mapping

11.1Implementing a Conceptual Schema

  • Overview of main steps

11.2Relational Schemas

  • Horizontal and vertical notations

  • Optionality

  • Key constraints

  • Other rules

11.3Relational Mapping Procedure

  • Avoiding redundancy

  • Mapping 1:1 associations

  • Mapping external uniqueness constraints

  • Mapping objectified associations

  • Mapping subtypes

11.4Advanced Mapping Aspects

  • Refinements to the Rmap procedure

11.5Summary

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