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Method for restructuring a database using a relational database scheme derived by selecting subscheme joins to avoid cycles
Method for restructuring a database using a relational database scheme derived by selecting subscheme joins to avoid cycles
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机译：使用关系数据库方案重构数据库的方法，该关系数据库方案是通过选择子方案联接以避免循环而得出的
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摘要
A method for relational database scheme design with the aid of a digital puter for a database having attributes A.sub.i, i=1 to n and relational schemes R.sub.j, j=1 to m. Each relational scheme R.sub.j is a non-empty subset of the attributes A.sub.i. The method detects any scheme that is non-acyclic in a simple manner that is easily adapted to a digital computer environment. The resulting relational database scheme design is thereby prevented from being non-acyclic.
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