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 9. Field Specifications
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It has long been an axiom of mine that the little things are infinitely the most important. |
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| --SHERLOCK HOLMES, THE ADVENTURES OF SHERLOCK HOLMES | ||
Topics Covered in This Chapter
Why Field Specifications Are Important
Field-Level Integrity
Anatomy of a Field Specification
Using Unique, Generic, and Replica Field Specifications
Defining Field Specifications for Each Field in the Database
Case Study
Summary
Review Questions
Fields are the bedrock of the database. They represent characteristics of the subjects that are important to an organization. Fields store the data that the organization uses as the basis of information—information that is vital to its daily operations, success, and future ...
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