Data Mart is a subset of data warehouses that support the needs of a particular department or business function. Data mart is a database containing data describing a segment of a company's operations. The data mart is a subset of the data warehouse. Data mart is usually used by a department or group of users within a company to define a series of tasks. The data contained in the data mart is a subset of the data found in the data warehouse.
Characteristics that distinguish Data Mart and Data Warehouse include:
There are several approaches to building data mart. One approach to building multiple data marts is to eventually integrate into a warehouse, another approach is to build infrastructure for a data warehouse company at the same time in building one or more data marts to quickly meet business needs.
Characteristics that distinguish Data Mart and Data Warehouse include:
- Data mart focuses on the needs of users who deal with one department or business function.
- Data mart does not normally contain detailed operational data, not the same as a data warehouse.
- Data mart contains less data than data warehouse, data mart become more easily understood.
There are several approaches to building data mart. One approach to building multiple data marts is to eventually integrate into a warehouse, another approach is to build infrastructure for a data warehouse company at the same time in building one or more data marts to quickly meet business needs.
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