Data warehouse is the secure electronic storage of information by an organization that enables effective decision making. data, once added to the warehouse cannot be changed or altered. A data warehouse centralizes and consolidates large amounts of data from multiple sources. It creates a historical record over time that data scientists and business analysts can use to their advantage. The need of data warehouse emerged due to organizations’ requirement to create, store, and retrieve crucial business documents. According to Allied Market Research, the global data warehousing (a technique of constructing a data warehouse) market size was valued at $21.18 billion in 2019 and is projected to reach $51.18 billion by 2028, growing at a CAGR of 10.7%.
