The URL is a little different, and the mapping back to the normalizeddatastructure is a little different (see Download for all of the source code).
只是 URL 有点不一样,并且映射回常规化的数据结构的映射也有点不一样(所有源代码,参见 下载)。
2
If the intent is simply to provide query and reporting capability, an er model with a normalized or denormalized datastructure would be most appropriate.
In addition, by using an industry standard "star schema", rather than a more normalized table structure, the data warehouse is optimized for efficient queries and quick response times.