需求
“Create a financial services gold-layer star schema with TransactionFact, DateDim, CustomerDim, AccountDim, and ProductDim tables, the shown keys, attributes, and transaction measures, with each fact linked to date, customer, account, and product dimensions.”
接著試試Add a branch dimension.Add exchange rates.
這張圖裡有什麼
看懂背後的決策。
01Fact grain
individual transaction
02Dimensions
Date, Customer, Account, Product
03
Surrogate keys for dimensions, foreign keys in fact
When building an analytical data warehouse for financial transaction reporting.