Question

SELECT ord.*,usr.*,ship.* FROM order_list ord
CASE 
WHEN shiptype = 'prof'
 THEN (INNER JOIN user_list usr 
      ON ord.userid = usr.id
      INNER JOIN user_list ship
      ON order.userid = ship.id)
WHEN shiptype = 'brief'
 THEN (INNER JOIN user_list usr 
      ON ord.userid = usr.id
      INNER JOIN tbl_brf_shipping ship
      ON order.userid = ship.id)
WHEN shiptype = 'joan'
 THEN (INNER JOIN joan_user_list usr 
      ON ord.userid = usr.id
      INNER JOIN joan_user_list ship
      ON order.userid = ship.id)
END
WHERE complete = '1'

它不起作用............

Answer 1

不确定您要完成的任务，但发布的查询不正确。您似乎需要的是准备好的语句：准备查询字符串并单独执行。详情请见：http://dev.mysql.com/doc/refman/5.0/en/sql-syntax-prepared-statements.html

在mysql select中使用带有case语句的内连接

1 个答案: