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Logical Diagramming Notation in SQL Developer Data Modeler: Barker and Bachman (Doc ID 1159734.1)

Last updated on MARCH 03, 2025

Applies to:

Oracle SQL Developer Data Modeler - Version All and later
Information in this document applies to any platform.
This note applies to all versions of SQL Developer Data Modeler and pertains to logical diagramming notation.


Purpose

To provide the end user with a description and comparison of the two logical modeling notations, Barker and Bachman, available in SQL Developer Data Modeler.

Scope

This note is intended for both novice and experienced developers who require some insight into the differences between the featured logical diagramming notations in SQL Developer.

Details

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In this Document
Purpose
Scope
Details
 Barker Notation
 Bachman Notation
 Differences in Notation
 Implicit vs. Explicit Inheritance
 Optionality and Cardinality
 Supertypes/Subtypes
 Restricted Relationships
 Attribute Details
References

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