靈活的搜索或使用三個表的sql查詢？

Question

我有三張表Order，Customer，Address。

我可以知道如何在靈活搜索中加入三張表以找出客戶訂單的地址（主要/默認地址或次要地址）嗎？

注意：主要地址是在客戶註冊期間創建的地址。

Answer 1

你想要這樣的東西嗎？

select {order.deliveryAddress} from {Order as order},{Customer as customer} where {order.user}={customer.pk} and {customer.uid} = ?customerID 

OR

select {address.pk} from {Order as order},{Customer as customer},{Address as address} where {order.deliveryAddress}={address.pk} and {order.user}={customer.pk} and {customer.uid} = ?customerID 

OR

select {order:deliveryAddress} from {Order as order JOIN Customer as customer ON {order:user}={customer:pk}} where {customer:uid} = ?customerID