Which of the following is one of the Oracle-recommended Analytics implementation leading practice?

A.
Use an iterative approach

B.
Assign logical column name the same as the physical table column name

C.
Make several catalogs map to the several different subject areas

D.
There should be 1:1 mapping between physical facts and dimension table and logical fact and dimension table

E.
Define expression and keys when setting a complex join in a business model