2025年8月18日

Dimensional Modeling - Late Arriving Facts and Late Arriving Dimensions

摘要： 🔹 1. Late Arriving Facts (a.k.a. Early Arriving Facts) The fact record itself (transaction, order line, etc.) comes in earlier than some of its requi 阅读全文

posted @ 2025-08-18 11:35 ZhangZhihuiAAA 阅读(13) 评论(0) 推荐(0)

Dimensional Modeling - Multipass SQL to Avoid Fact-to-Fact Table Joins

摘要： 1. The Problem: Fact-to-Fact Joins In a data warehouse, fact tables are very large (millions/billions of rows). Sometimes analysts want to combine two 阅读全文

posted @ 2025-08-18 09:56 ZhangZhihuiAAA 阅读(8) 评论(0) 推荐(0)


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2025年8月18日