Fact Tables

Fact tables are central components of a data warehouse that store measurable, quantitative data about business activities. They contain specific facts or metrics—such as sales amount, number of items sold, or revenue—along with keys that link to related information like product details or time periods. Think of a fact table as a ledger recording events or transactions, providing the core data needed for analysis. It allows organizations to analyze trends, performance, and patterns by aggregating and querying these facts in combination with descriptive data from related tables.