You could certainly write a bunch of if (grade.equals (Grade.A)) -type statements, but that's a waste of time.
您当然可以写一堆if (grade . equals (grade . a))类型的语句,但那是在浪费时间。
If we ran this query on this model, we would get a list of resources (because the objects of RDF: type statements are resources).
如果我们对该模型运行这一查询,我们将得到一列资源(因为rdf: type语句的对象是资源)。
This provider now supports host variables, modules, the ARRAY data type, compound statements, and variable length timestamps.
目前这个提供程序支持主机变量、模块、ARRAY数据类型、复合语句和可变长度时间戳。
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