Which is true about data marts?

Options
- Data marts can’t exists without data warehouse
- Data marts servers multiple departments of an organization or several data analysis problems
- Data mart must be always smaller than data warehouse in terms of amount of data
- Can exists without being connected to a data warehouse

CORRECT ANSWER : Can exists without being connected to a data warehouse

Discussion Board
Data mart

A data mart is a repository of data that is designed to serve a particular community of knowledge workers. A data mart is the access layer of the data warehouse environment that is used to get data out to the users. The data mart is a subset of the data warehouse and is usually oriented to a specific business line or team. Whereas data warehouses have an enterprise-wide depth, the information in data marts pertains to a single department. Data mart exists without being connected to a data warehouse.

Prajakta Pandit 03-16-2017 07:26 AM

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