我试图用我的一些数据库表实现每个层次结构继承的表,例如Address.我想获得3班从Address,这些都是EmployeeAddress,CustomerAddress,SupplierAddress.
+-------------------+------------------------+
| Address |> EmployeeAddress |
+-------------------+------------------------+
| ID | .. |
| OwnerID | EmployeeID |
| OwnerCategory | (condition: where = 0) |
| Street_1 | .. |
| Street_2 | .. |
| City | .. |
| Province | .. |
| PostalCode | .. |
+-------------------+------------------------+
|> CustomerAddress |
+------------------------+
| .. |
| EmployeeID |
| (condition: where = 1) |
| .. …