访问db中的双内连接

Question

我需要从两个表,1个人,2个任务中获取一些数据,SQL中的以下查询可以工作,而Access不起作用

 SELECT     Task_Id,
            e2.emploeey_name AS W_FROM,
            e1.emploeey_name AS W_TO,
            t.Task_Details
 FROM       tasks AS T
 INNER JOIN Employees AS e1 ON e1.Emploeey_id = T.Task_To
 INNER JOIN Employees AS e2 ON e2.Emploeey_id = T.write_From

我尝试了很多方法,我在谷歌搜索,但没有找到答案如果有人有解决方案,我会非常感激

Answer 1

你用圆括号试过吗？MS Access需要(即喜欢)多个JOINS周围的括号:

 SELECT     Task_Id,
            e2.emploeey_name AS W_FROM,
            e1.emploeey_name AS W_TO,
            t.Task_Details
 FROM       
 (
      tasks AS T
      INNER JOIN Employees AS e1 
           ON e1.Emploeey_id = T.Task_To
 )
 INNER JOIN Employees AS e2 
      ON e2.Emploeey_id = T.write_From