kimball dimensional modeling pdf


  • What is Kimball's dimensional model?

    Kimball dimensional modeling allows users to construct several star schemas to fulfill various reporting needs. The advantage of star schema is that small dimensional-table queries run instantaneously. To integrate data, Kimball approach to Data Warehouse lifecycle suggests the idea of conformed data dimensions.
  • What are the 4 steps in Kimball's methodology in designing a dimensional model for a data warehouse?

    These four steps are as follows:

    Pick a business process to model. Decide on the grain. Chose the dimensions that apply to each fact table row. Identify the numeric facts that will populate each fact table row.
  • What are the 5 steps of dimensional modelling?

    Designing a Dimensional Data Model

    Step 1: Identify the Business Processes. Step 2: Identify Facts and Dimensions in Your Dimensional Data Model. Step 3: Identify the Attributes for Dimensions. Step 4: Define the Granularity for Business Facts. Step 5: Storing Historical Information (Slowly Changing Dimensions)
  • The four key decisions made during the design of a dimensional model include:

    Select the business process.Declare the grain.Identify the dimensions.Identify the facts.
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