需求
“Create a bank customer account ERD with Customer, AccountType, Account, and Transaction tables, the shown keys and attributes, accounts linked to customers and account types, and transactions linked to accounts.”
接著試試Add beneficiaries.Add recurring transfers.
這張圖裡有什麼
看懂背後的決策。
01Choosing minimal core entities
Customer, Account, Transaction, AccountType
02
Using mandatory foreign keys to enforce referential integrity
03
Storing account balance as a redundant field for query performance
When building a banking application's data model, especially for handling multiple account types and recording debit/credit transactions per account.