Discussion: Understanding Factless Fact Tables
Understanding Factless Fact Tables I want to discuss Factless Fact Tables because, to be honest, the name caught my attention—it sounds funny, a "Factless fact?" lol. And since am a simple person to please, I figured there must be an something interesting here or at least a reason behind it. Plus I figured that by understanding what "factless" means, I could work backward to understand what a regular fact table is… hehe. So, I’ll try to explain this in a way that's easy to understand. So What is a Fact Table? S o much for working backwards am I right? lol. But bare with me for a sec In data warehousing, a fact table stores measurable data—things that can be counted or summed. For example, a "Sales" fact table might store: Product sold Number of units sold (a measure, or "fact") Sale date Sale amount (another fact) Each row in a fact table represents a measurable event, like a sale, and includes numbers that help us analyze performance. Wh...