Question

我正在工作ob关于我在本报告中想要的收银员的报告知道特定日期的收银员总数，我写了SQL语句，但是这句话返回重复行..当我与表进行左连接时，重复记录。这是我的SQL语句：

select DISTINCT
tblcashiers.CashierName,
IFNULL(tblcashieropeningbalance.Mount, 0) as COB,
IFNULL(tblcashdeposit.Mount, 0) as CD,
IFNULL(tblbankcashiertransfer.Mount, 0) as BCT,
IFNULL(tblsupplierrefund.Refund, 0) as SPR ,
IFNULL(tblcustomrefund.Refund , 0) as CUR,
IFNULL(tblcashpayments.Mount, 0) as CP,
IFNULL(tblcashiertransfer.Mount, 0) as CT,
IFNULL(tblcashiertransfer.Mount, 0) as CT2,
IFNULL(tblcustomerrefund.Refund, 0) as CR,
IFNULL(tblcashierbanktransfer.Mount, 0)as CBT,
IFNULL(tblexpenses.Mount, 0)as EX,
IFNULL(tblcustomespayment.Mount, 0)as CUSP

from tblcashiers
LEFT  JOIN tblcashdeposit on tblcashiers.CashierID = tblcashdeposit.CashierID 
LEFT  JOIN tblbankcashiertransfer on tblcashiers.CashierID = tblbankcashiertransfer.CashierID 
LEFT  JOIN tblsupplierrefund  on tblcashiers.CashierID = tblsupplierrefund.CashierID  
LEFT  JOIN tblcustomrefund  on tblcashiers.CashierID = tblcustomrefund.CashierID 
LEFT  JOIN tblcashpayments  on tblcashiers.CashierID = tblcashpayments.CashierID 
LEFT  JOIN tblcustomerrefund  on tblcashiers.CashierID = tblcustomerrefund.CashierID ='2'
LEFT  JOIN tblcashierbanktransfer  on tblcashiers.CashierID = tblcashierbanktransfer.CashierID 
LEFT  JOIN tblcashiertransfer  on tblcashiers.CashierID = tblcashiertransfer.FromCashierID 
LEFT  JOIN tblcashiertransfer as tblcashiertransfer2 on tblcashiers.CashierID = tblcashiertransfer2.ToCashierID 
-- LEFT JOIN tblcashiers as tblcashiers on tblcashiers.CashierID = tblcashiers.CashierID
 LEFT JOIN tblcashieropeningbalance on tblcashieropeningbalance.CashierID = tblcashiers.CashierID 
LEFT JOIN tblexpenses as tblexpenses on tblcashiers.CashierID = tblexpenses.CashierID 
LEFT  JOIN tblcustomespayment as tblcustomespayment on tblcashiers.CashierID = tblcustomespayment.CashierID 
 where tblcashiers.CashierID = 2 

and tblcashdeposit .TransDate >= '2016-01-01'
and tblcashdeposit .TransDate <= '2016-03-01'

GROUP BY tblcashieropeningbalance.TransDate,
tblcashdeposit.TransDate,   tblbankcashiertransfer.TransDate,
tblsupplierrefund.RefundDate,   tblcashpayments.TransDate,  
tblcustomerrefund.RefundDate,  tblcashierbanktransfer.TransDate,
tblcashiertransfer.TransDate,  tblcashiertransfer.TransDate,
tblexpenses.TransDate,tblcustomespayment.TransDate

如何解决此问题？

Answer 1

从查询中删除GROUP BY。 GROUP BY仅在SELECT中使用聚合函数混合普通列时使用。您的查询不包含任何聚合函数（min，max ...），因此您不需要GROUP BY。

MySQL语句返回重复行

1 个答案: