... 简单纯关系语言 relational language 复杂的纯关系语言 relational languages 复杂的混合关系语言 relational languages ...
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complex pure-relational languages 复杂的纯关系语言
complex mixed-relational languages 复杂的混合关系语言
relational data manipulation languages 关系型数据维护语言
Relational databases aren't like programming languages. They don't have array types.
关系数据库不同于编程语言，它们不具有数组类型。
The use of these languages has been extended to the relational model.
这些语言的使用已经扩展到了关系模型中。
Just like their friends who program in statically typed languages, programmers of Python and in other dynamic languages often use relational databases as a back-end data store.
正如采用静态类型化的语言进行编程的朋友们一样，Python和其他动态语言的程序员通常使用关系数据库作为后端数据存储区。
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