Creating Hierarchies using Columns from the Same Table. This is the first scenario and is a simple scenario in which we can create a hierarchy using columns belonging to a single PowerPivot table. For this demonstration, let's create a CalendarHierarchy using Year, Quarter, and Month from the DimDate table. Follow the steps below to create a hierarchy:
Mongoose is the popular English name for 29 of the 34[2] species in the 14 genera of the family Herpestidae, which are small feliform carnivorans native to southern Eurasia and mainland Africa.
Simply put, the mongoose is not a weasel. The meerkat, however, is a mongoose, but since it is such a popular little animal and is in its own genus, you can read about it here - Meerkat Facts. Most mongoose species are highly social animals living in busy groups of 6 to 40 individuals called packs or mobs.