Die Anfrage
“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.”
Dann probieren SieAdd a branch dimension.Add exchange rates.
Was diese Zeichnung zeigt
Die dahinterstehenden Entscheidungen verstehen.
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.