One of the great difficulties in working with the RPAS is to understand how multidimensional database works, operates and manipulate their data. For thus, it is very important to understanding some concepts related to help during various activities related of database.
The model most well known and used is the relational database model. The relational model uses a two-dimensional structure of rows and columns to store data; these structures are connected or related by common fundamental values, often defined as keys. Continue reading