Datamart can be defined as the subset of a data warehouse of an organization which is limited to a specific business unit or group of users. It is a subject-oriented database and is also known as High-Performance Query Structures (HPQS).
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Types of Data Marts
Data marts are of two types – Dependent and Independent.
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- Dependent Data Mart – This data mart depends on the enterprise data warehouse and works in a top-down manner.
- Independent Data Mart – This data mart does not depend on the enterprise data warehouse and works in a bottom-up manner.
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Benefits of Data Marts
- Allows the data to be accessed in lesser time
- Cost-efficient alternative to the bulky data warehouse
- Easy to use as designed according to the needs of a specific user group
- Fastens business processes.
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