Introduction
The term “warehousing” can be understood in English as “a storehouse for depositing goods and merchandise”. Suppose that the goods and merchandise are nothing but our good old data – sales reports, statistics, and business transactions – this will constitute a “data warehouse”. The concept of data warehousing states that data from older system is copied into a new system dedicated entirely for analyzing data. Data warehouse will store a substantial amount of historical data. Users of this system are able to continuously ask or query it to retrieve data for analysis. Many organizations have adopted this concept to informed decisions faster through the historical ...