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...中one-to-many 和 many-to-many unique=true 之间有何区别?...
one-to-one 和 many-to-one unique区别 - - 博客频道 - CSDN.NET
...to many 和many to one 有什么区别?请朋友们帮帮..._百度作业帮
Hibernate中many-to-one unique="true" 和one-to-one
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