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Kimball Dimensional Modeling Techniques

Kimball Dimensional Modeling Techniques table of Contents Fundamental Concepts .. 1 Gather Business Requirements and Data Realities .. 1 Collaborative Dimensional Modeling Workshops .. 1 Four-Step Dimensional Design Process .. 1 Business Processes .. 1 Grain .. 2 Dimensions for Descriptive Context .. 2 Facts for Measurements .. 2 Star Schemas and OLAP cubes .. 2 Grace Extensions to Dimensional Modeling .. 3 Basic Fact table Techniques .. 4 Fact table Structure .. 4 Additive, Semi-Additive, and Non-Additive Facts .. 4 Nulls in Fact Tables .. 4 Conformed Facts .. 4 Transaction Fact Tables .. 4 Periodic Snapshot Fact Tables .. 5 Accumulating Snapshot Fact Tables.

Basic Fact Table Techniques Fact Table Structure A fact table contains the numeric measures produced by an operational measurement event in the real world. At the lowest grain, a fact table row corresponds to a measurement event and vice versa. Thus the fundamental design of a fact table is entirely based on a physical activity and is not

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