January 2008
Intermediate to advanced
384 pages
8h 1m
English
Content preview from Joe Celko's Thinking in Sets: Auxiliary, Temporal, and Virtual Tables in SQLBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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4.5. Definition of a Proper Table
There are good reasons for the data modeling principle that a well-designed table is a set of things of the same kind instead of a pile of unrelated items.
At one extreme, we have the “attribute split” tables, and on the other, the extreme conglomerated tables. When I’ve posted in newsgroups, I’ve referred to a “Britney Spears, Squids, and Automobiles” procedure and table for years—attempts to make one table or procedures serve as many purposes as possible. What is funny about this that there is a “Britney Spears or Squid” website (http://scienceblogs.com/deepseanews/2007/02/weekend_foolishness.php) posted after she shaved her head in 2007.
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