填空题关系模式中,函数依赖的推理规则主要有:()、()、()。这三条规则还可以有3条推论:()规则、()规则、()规则。
填空题
关系模式中,函数依赖的推理规则主要有:()、()、()。这三条规则还可以有3条推论:()规则、()规则、()规则。
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