Snowflake Schema is a variation of the star schema in data warehousing. It's characterized by having multiple levels of dimension tables, forming a hierarchical or snowflake-like structure. This design is often used to reduce data redundancy and improve query performance in certain scenarios.
Thursday, 10 October 2024
What is star schema and explain with example
Star Schema: A Fundamental Data Warehouse Design
A star schema is a common data warehouse design pattern where a central fact table is surrounded by multiple dimension tables. This structure facilitates efficient data analysis and reporting by organizing data into a hierarchical format.
Facts and dimensions in dimensional modeling
Facts in dimensional modeling are the quantitative measurements or metrics that you want to analyze. They represent the core business processes or events that you're tracking.
what is fact table in data were housing
Fact Table: The Heart of a Data Warehouse
In a dimensional data model, a fact table is the central component that stores quantitative measurements (facts) related to a business process. These facts are typically numerical values that can be aggregated or calculated.
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