March 2003
Beginner
672 pages
14h
English
book
Database Design for Mere Mortals™: A Hands-On Guide to Relational Database Design, Second Edition
by Michael J. Hernandez
Content preview from Database Design for Mere Mortals™: A Hands-On Guide to Relational Database Design, Second Edition
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Chapter 10. Table Relationships
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There is no substitute for the comfort supplied by the utterly taken-for-granted relationship. |
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| --IRIS MURDOCH | ||
Topics Covered in This Chapter
Why Relationships Are Important
Types of Relationships
Identifying Existing Relationships
Establishing Each Relationship
Refining All Foreign Keys
Establishing Relationship Characteristics
Relationship-Level Integrity
Case Study
Summary
Review Questions
You learned in Chapter 3 that a relationship exists between two tables when you can in some way associate the records of the first table with those of the second. You also learned that each relationship has three distinct characteristics: the type of relationship that exists between the tables, the ...