sql - 查询“未定义”列时出现SQL错误(？)

   SELECT Output.name, Output.avgSalary
   FROM (SELECT Airplane.aid, Airplane.aname AS name,
                AVG (worker.salary) AS avgSalary
         FROM Aircraft Airplane , Certified IsCertified, Employees worker
         WHERE Airplane.aid = IsCertified.aid AND
               IsCertified.eid = worker.eid AND
               Airplane.crusingrange >  1000
          GROUP BY Airplane.aid, Airplane.aname) AS Output

Oracle SQL在结尾处的“ AS Output”处显示错误，但我无法弄清楚它出了什么问题。 ：S

ERROR at line 1:
ORA-00933: SQL command not properly ended

最佳答案

试试这个：

         SELECT Airplane.aid, Airplane.aname AS name,
                AVG (worker.salary) AS avgSalary
         FROM Aircraft Airplane INNER JOIN Certified IsCertified on
                   Airplane.aid = IsCertified.aid
              INNER JOIN Employees worker on IsCertified.eid = worker.eid
         WHERE Airplane.crusingrange >  1000
          GROUP BY Airplane.aid, Airplane.aname

关于sql - 查询“未定义”列时出现SQL错误(？)，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/9857259/