Question

我有一个SQL查询，在该查询中我加入了三个表，我在SQL QUERY中运行它显示了一些错误，我不知道为什么会出现此错误，如果有人知道请更新我的代码

我的错误是：＃2013 - 查询期间与MySQL服务器的连接丢失

我的SQL QUERY

SELECT tm.empId,a.companyId,a.tripId,a.startTime,a.endTime,a.tripDate,c.shiftTiming,c.routeId,c.cabId, a.forceEndStatus,a.tripStatus,c.type, (
    select count('*') 
    from trip_member as m 
    WHERE m.tripId=a.tripId and m.empPresentStatus = '1'
) as absentcount,(
    select count('*') 
    from trip_member as m 
    WHERE m.tripId=a.tripId and m.empPresentStatus = '0'
) as presentcount ,(
    select count('*') 
    from trip_member as m 
    WHERE m.tripId=a.tripId and m.pickupotpStatus = '1'
) as pickupcount  
FROM trip_details a 
INNER JOIN cab_allocation as c 
on c.allocationId = a.allocationId 
LEFT JOIN trip_member tm 
ON a.tripId = tm.tripId 
where c.companyId = '1' 
order by a.id desc 
LIMIT 0,30

假设我正在移除LEFT JOIN trip_member tm ON a.tripId = tm.tripId意味着它正常工作，

＃2013 - 查询期间与MySQL服务器的连接丢失

0 个答案: