Fact Tables Demystified: A Comprehensive Guide to Transactional, Periodic, and Accumulating Snapshots in Dimensional Modeling
Dimensional modelling is a powerful tool for organising and analysing data in data warehousing and business intelligence. At the heart of dimensional modelling are fact tables, which capture business processes’ measurable, quantitative aspects. This blog post will delve into the three fundamental types of fact tables: transactional, periodic snapshot, and accumulating snapshot. Let’s explore how each type contributes to effective data analysis and decision-making. Transactional Fact Tables: Granular Insights Transactional fact tables form the backbone of dimensional models, storing the most granular detail about business events....