About one algorithm of relational database schema optimization

被引:0
|
作者
Buslik, N.N.
机构
来源
Programmirovanie | 1993年 / 03期
关键词
Algorithms - Data structures - Formal logic - Optimization - Polynomials - Set theory;
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暂无
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摘要
An algorithm of exhaustive search of the 3NF relational schema, minimum from all equivalent schemes which are synthesized with Ling-Tompa-Kameda algorithm, is proposed. The reduction of search area is obtained owing to exclusion from examination the unkey attributes in subschemes of each equivalent schema. A polynomial time is necessary to find such attributes.
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页码:40 / 47
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