数据仓库建模_9

type 3 slowly changing dimension is just added a historical column.
The type 3 slowly changing dimension technique allows us to see new and
historical fact data by either the new or prior attribute values.

关注

在对方如果获得成就的时候,即使他在主动的讲了,也要记得关切的询问.特别是如果对方的心情都为之改变了,请关心.