hello
I am beginer in Bi and now I am reading data modeling in sap net waer bw book.
there are consept in Dimensions :
Flat characteristic structure
Balanced tree and forest structure
Unbalanced tree and forest structure
but I can underestand ,Is Flat characteristic structure as same flat structure in Heterarchies ? Or no?.
Plz intrduse good book for begin BI modeling
plz help me