... 关系语言闭包 closure of relational language 关系语义学 relational semantics 关系直接存取法 relation direct access method ...
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The reason for the difference in output between the two query modes is that Compatible query mode applies relational semantics to the report as it does not contain any dimensional functions.
这两个查询模式的输出出现差异的原因是因为Compatible Query Mode没有任何维度函数，它只在报告中应用关系语义。
Why not just model the data as a document, which doesn't necessarily fit into a rigid relational model but roughly follows the semantics of a high-level model?
为什么不将数据建模为文档呢？这样可以不用死守严格的关系模式，而只需要大致遵循高级模式的语义。
The semantics of logical models, storage models, and server-side Jazz APIs are all independent of the particular choice of relational database system.
逻辑模型、存储模型和服务器端jazz API的语义全都与特定的关系数据库系统选择无关。
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