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最好地 -> 以最佳方式 #125

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2 changes: 1 addition & 1 deletion ch2.md
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Expand Up @@ -174,7 +174,7 @@ JSON表示比[图2-1](img/fig2-1.png)中的多表模式具有更好的**局部

### 文档数据库是否在重蹈覆辙?

在多对多的关系和连接已常规用在关系数据库时,文档数据库和NoSQL重启了辩论:如何最好地在数据库中表示多对多关系。那场辩论可比NoSQL古老得多,事实上,最早可以追溯到计算机化数据库系统。
在多对多的关系和连接已常规用在关系数据库时,文档数据库和NoSQL重启了辩论:如何以最佳方式在数据库中表示多对多关系。那场辩论可比NoSQL古老得多,事实上,最早可以追溯到计算机化数据库系统。

20世纪70年代最受欢迎的业务数据处理数据库是IBM的信息管理系统(IMS),最初是为了阿波罗太空计划的库存管理而开发的,并于1968年有了首次商业发布【13】。目前它仍在使用和维护,运行在IBM大型机的OS/390上【14】。

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