mysql - 字段列表中的未知列错误

Question

我正在对一堆表进行内部联接，并且我确实使所有这些表都存在。但是当我每次输入查询时，它总是显示'

Unknown column 'tbl_undertime.ut_date' in 'field list'

我非常确定tbl_undertime是我数据库下的一个表，但我不知道为什么它不断返回这样的错误。我已经删除了该表并再次使用相同的名称和列创建了一个新表，但仍然给出了相同的错误。

非常感谢您的帮助。

select tbl_employee.lname, tbl_employee.fname, tbl_employee.mi,     
tbl_employee.sss_no,
tbl_employee.philhealth_no, tbl_employee.dept_id, tbl_employee.salaryperday,
tbl_earlyout.timeout_date, tbl_late.late_date, tbl_overtime.ot_date,    
tbl_absent.absentdate,
tbl_leave.leave_type, tbl_leave.start_date, tbl_leave.end_date,   
tbl_undertime.utdate, tbl_cashadv.cashadv_date,
tbl_pay15.gross_sal
from tbl_employee
inner join tbl_earlyout
on tbl_employee.empid = tbl_earlyout.empid
inner join tbl_late
on tbl_late.empid = tbl_overtime.empid
inner join tbl_overtime
on tbl_overtime.empid = tbl_absent.empid
inner join tbl_absent
on tbl_absent.empid = tbl_leave.empid
inner join tbl_leave
on tbl_leave.empid = tbl_undertime.empid
inner join tbl_cashadv
on tbl_cashadv.empid = tbl_pay15.empid;

+---------------+---------+------+-----+---------+-------+
| Field         | Type    | Null | Key | Default | Extra |
+---------------+---------+------+-----+---------+-------+
| ut_id         | int(11) | NO   | PRI | NULL    |       |
| empid         | int(11) | YES  | MUL | NULL    |       |
| utdate        | date    | YES  |     | NULL    |       |
| ut_mins_hours | double  | YES  |     | NULL    |       |
+---------------+---------+------+-----+---------+-------+

Answer 1

查看您的代码，您的表格列似乎是 utdate 而不是 ut_date。我想您的问题是拼写错误，因此未知列'tbl_undertime.ut_date。