Question

          SELECT orders.*, user.name, user.CONCAT(adress,city) as adress
          FROM  orders, user 
          WHERE user.id = orders.user_id 
          ORDER BY orders.id DESC

我想从用户表中检索地址，城市，名称和所有来自订单表。我想将地址和城市结合起来作为地址。但它给出了一个错误。正确的做法是什么？

Answer 1

SELECT orders.*, user.name, CONCAT(user.adress," ",user.city) as adress
      FROM  orders, user 
      WHERE user.id = orders.user_id 
      ORDER BY orders.id DESC

加入Mysql CONCAT（）函数

1 个答案: