Data Warehousing Question:

What is Dimensional Modeling?

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Answer:

Dimensional Modeling is a design concept used by many data warehouse designers to build their data warehouse. In this design model all the data is stored in two types of tables - Facts table and Dimension table. Fact table contains the facts/measurements of the business and the dimension table contains the context of measurements i.e., the dimensions on which the facts are calculated.Dimension modeling is a method for designing data warehouse. Three types of modeling are there

1. Conceptual modeling

2. Logical modeling

3. Physical modeling

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