Data Cube
OLAP Data Cube
The data cube is a tool to model data points using multiple dimensional axes. Each axes represents an aggregation criteria, such as “sex” or “date”.
A 2D example of the data cube could be the following. It has two dimensional axes:
dim_sex: Male or Femaledim_date: a day
Each point in the plane represent a value (or a value tuple). Therefore, the combination of an dim_date and dim_sex coordinate identifies a value uniquely.