data-warehouses-and-data-marts

Data Warehouses and Data Marts Data warehouses and data marts are both data storage systems that serve different purposes , and it's important to understand their differences to make the right investment decisions   Data warehouse A central repository for all of a company's data, used for analytics and business intelligence. Data warehouses are relational databases that can process and transform data from multiple sources. They're used to help a business make informed decisions through analysis, reporting, and data mining.   Data mart A subset of a data warehouse that serves the needs of a specific business unit, like a department or line of business. Data marts are typically limited to holding data for a single purpose, and they draw on fewer, more specialized data sources. Data marts are often a cost-effective solution for smaller projects or business units with limited resources   The main difference between Data warehouse and Data mart is that, Dat...