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        “n:m"的含义和“1:n"在数据库设计中

        Meaning of quot;n:mquot; and quot;1:nquot; in database design(“n:m的含义和“1:n在数据库设计中)

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                  本文介绍了“n:m"的含义和“1:n"在数据库设计中的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  在数据库设计中n:m1:n 是什么意思?

                  In database design what do n:m and 1:n mean?

                  它与键或关系有什么关系吗?

                  Does it have anything to do with keys or relationships?

                  推荐答案

                  m:n 用于表示多对多关系(m 对象在另一边与另一边的 n 相关),而 1:n 指的是一对多关系(另一边的 1 对象与 n 相关.

                  m:n is used to denote a many-to-many relationship (m objects on the other side related to n on the other) while 1:n refers to a one-to-many relationship (1 object on the other side related to n on the other).

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