作者shadow216308 (无名shadow216308)
看板TransCSI
标题[问题] 一样式资料库系统
时间Sat Dec 22 15:39:23 2007
1. what undersirable dependencies are avoided when a relation is in 3NF?
2. Define Boyce-Codd normal form
how does it differ from 3NF ? why is it considered a stronger form of 3NF ?
3q大人们
我要中文的解答喔~~^^
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