The data warehouse is a repository of historical data are arranged by subject, to support decision makers in an organization. The data warehouse is very expensive and is often used for large companies. Data marts into a solution for an organization that requires storage of smaller, low-cost and designed for the end user in an organization that is small or for departments in large organizations. The characteristics of the data warehouse and data marts are:
- Regulated by the business dimension or object.
- Using the online analytical processing
- Integrated
- Time variant
- Nonvolatile
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