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青山 素子 青山 素子
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7 years ago
Discuss how primary and foreign keys are used to implement relationships between tables in a relational or object-relational database. In this discussion, describe the purpose of a primary key and of a foreign key, and define the concept of referential integrity. Then describe the placement of foreign keys in unary and binary one-to-many relationships and in unary and binary many-to-many relationships.
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Object-Oriented System Analysis and Design

Object-Oriented System Analysis and Design


Edition: 1st
Authors:
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fierofiero
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7 years ago
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青山 . Author
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7 years ago
Well answered, marking this question solved
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7 years ago
Don't forget to mark the topic solved Monkey
Computer nerd Nerd Face
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