I'm new to SSAS and i'm going thru the concepts of multi dimensional DBs and cube. I just wanted to know how a multidimensionla database is internally represented on disk( as it has FACT and Dimension tables which are relational tables ..i suppose). Aren't they(Multi dim DBs) represented in relational format as tables? And also i wanted to know how a cube is internally represented in SSAS.Is it just a logical representation of multidimensional data or is there any specific data structure to store this? All these questions came up when i'm going thru the basics of SSAS. Any clues or inputs reg the above queries is greatly appreciated.