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多对多关系有不用一张新表表示关联关系的么？ 比如学生和选修课 建一张学生表，一张选修课表，然后在学生字段加了一个数组字段，存储选修课的 id

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  •   KouShuiYu · Mar 16, 2021 · 669 views
    This topic created in 2004 days ago, the information mentioned may be changed or developed.
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