Question

Table addressesemail:
    id      name      line        city      state       zip      email
    1       name1     address1    city1     state1      12345    NULL
    2       name2     address2    city2     state2      12345    NULL
    3       name3     address3    city3     state3      25869    email214

Table orders:
    id    email     date    status
    1     email1    date1   closed
    2     email2    date2   closed
    3     email3    date3   open

Table orders_billing_address
  order_id    address_id   
     1            1
     2            1
     3            1
     4            2
     5            3

SELECT a.name, a.line1, a.line2, a.city, a.state, a.zip, group_concat(c.email) 
    FROM addressesemail a 
       LEFT JOIN orders_billing_address b ON b.address_id = a.id 
       LEFT JOIN orders c ON b.order_id = c.id

问题：

仅从addressesemail表导入第一行。
将所有电子邮件导入addressesemail表的第一行。

我尝试编码已经好几年了，我不知道自己做错了什么。所有帮助表示赞赏。

使用bridge加入2个表

0 个答案: