＃1241 - 操作數應包含1列（S）

Question

在這裏，我得到的錯誤是這樣，

1241 - 操作數應包含1列（S）

我的SQL查詢就好了，

SELECT * 
FROM `fx_users_attendance` 
    LEFT OUTER JOIN `fx_account_details` ON fx_account_details.user_id = fx_users_attendance.user_id 
    LEFT OUTER JOIN `fx_departments` ON fx_departments.deptid = fx_account_details.department 
    LEFT OUTER JOIN `fx_users` ON fx_users.id = fx_users_attendance.user_id 
WHERE fx_departments.deptid IN(1) 
AND fx_users.id IN(5) 
AND YEAR(clock_in) = YEAR(CURDATE()) 
GROUP BY (01,02,03,04,05,06,07,08,09,10,11,12) 

實際上說的是什麼？

Answer 1

問題應該是您的GROUP BY子句的語法。只需刪除括號，它應該沒問題。

SELECT * 
FROM `fx_users_attendance` 
    LEFT OUTER JOIN `fx_account_details` ON fx_account_details.user_id = fx_users_attendance.user_id 
    LEFT OUTER JOIN `fx_departments` ON fx_departments.deptid = fx_account_details.department 
    LEFT OUTER JOIN `fx_users` ON fx_users.id = fx_users_attendance.user_id 
WHERE fx_departments.deptid IN(1) 
AND fx_users.id IN(5) 
AND YEAR(clock_in) = YEAR(CURDATE()) 
GROUP BY 01,02,03,04,05,06,07,08,09,10,11,12