数据仓库

https://www.cnblogs.com/hadoopdev/category/651905.html

https://czmmiao.iteye.com/blog/1827082

https://cloud.tencent.com/developer/article/1011863

粒度:https://max.book118.com/html/2017/1201/142357762.shtm

        https://max.book118.com/html/2015/0328/13905018.shtm

维度表和事实表:https://max.book118.com/html/2017/0721/123283489.shtm

元数据管理:https://max.book118.com/html/2015/0320/13544395.shtm