我正在尝试从两个表中选择数据。
-warehouse 有两列:warehouseId、warehouseName
-transportation 有三列:transporter、warehouseId1、warehouseId2
我想从两个表中选择并从表 A 中为warehouseId1 和warehouseId2 获取warehouseName 这是我的代码,但它不起作用。
select a.transporter, b.warehouseName as warehouse1, b.warehouseName as warehouse2
from transportation a, warehouse b
where a.warehouseId1 = b.warehouseId and a.warehouseId2 = b.warehouseId