Databases Reference
In-Depth Information
DESIGNING A DATABASE
Starting Point
Go to
www.wiley.com/college/gillenson
to assess your knowledge of database
design.
Determine where you need to concentrate your effort.
What You'll Learn in This Chapter
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Entity-relationship to relational table conversion processes
Associative table requirements
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Standard normalization forms
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After Studying This Chapter, You'll Be Able To
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Convert stand-alone entities to tables
Identify entity relationships by type and conversion requirements
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Convert unary entity relationships to database objects
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Convert binary entity relationships to database objects
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Compare E-R diagrams and the resulting relational table designs
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Select appropriate foreign keys and their placement in relational tables
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Create associative tables, including intersection data where needed
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Recognize unnormalized data
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Normalize a database by applying the first, second, and third normal forms
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Normalize a database through non-loss decomposition
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Normalize the tables created from an E-R diagram
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Recognize the need for denormalization and selectively denormalize data
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