字段列表错误中的未知列

Question

我正在对一堆表进行内部连接，并且我确定所有这些表都存在。但是，当每次我输入我的查询，它总是说'

未知列‘’在‘字段列表’

tbl_undertime.ut_date我非常肯定tbl_undertime是在我的数据库，但我的表不知道为什么它会一直返回这样的错误。我已经删除了表格并重新创建了一个具有相同名称和列的表格，但仍然给我提供了同样的错误。

帮助将非常感激。

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

看你的代码，它会出现在表列utdate不ut_date。我会想象一个错字是你的问题，因此Unknown column 'tbl_undertime.ut_date。