CS

I computing, a data warehouse, also known as an enterprise data warehouse, is a system used for reporting and data analysis and is considered a core component of data analysis. Data warehouses are central repositories of integrated data from one or more different sources. They store current and historical data in one single place. We use databases for transaction purposes, and the historical data of these transactions and it’s previous states are stored in this data warehouses. ...

A database management system (DBMS) is a collection of programs that enables users to create and maintain a database. The DBMS is a general-purpose software system that facilitates the processes of defining, constructing, manipulating and sharing databases among various users and applications. Data Model: A data model is a collection of concepts that can be used to describe the structure of a database. It provides the necessary means to achieve abstraction. ...