数据库系统概念(database-system-concepts)英文第六版-课后练习题-答案-第8章.pdf
摘要： 8C H A P T E RRelational Database DesignExercises8.1 Suppose that we decompose the schema R = (A, B, C, D, E) into(A, B, C) (A, D, E).Show that this decomposition is a lossless-join decomposition if t...
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