Data marts

Data marts are created to answer specific business needs. The data is expressed as a star schema. At the center of the schema is a fact table containing measures or factual data about a business. To the fact table are linked in a star pattern the dimensions that reflect dimensions or attributes of a business. This topic is an overview of the data marts built through the sample catalog.

The extract, transform, and load (ETL) builds deliver data from the operational data store area in the data warehouse to the data marts. Data marts can be configured to have access restrictions for specific groups of people.


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