我有点新编码,并一直在尝试编写我认为是简单的SQL查询.请帮忙 :)
Table 1: Users
id = user idt
username = user name
Table 2: Orders
orderid = order id
order_to = user id of person buying
order_from = user id of person selling
oder_details = text
基本上我想:
"Select Username(from), Username(to), order_details FROM mytables WHERE Order id = 1;"
并得到结果为1行,我不知道如何继续.我以为我可以用串联或其他东西做到这一点......任何人都可以帮忙吗？