Mysql Sumarize TIMEDIFF字段
如何使用此查询汇总总时间:Mysql Sumarize TIMEDIFF字段,mysql,Mysql,如何使用此查询汇总总时间: SELECT `tblproduction`.`ID`, `tblproduction`.`OrderID`, `tblproduction`.`ProductID`, `tblproduction`.`Start`, `tblproduction`.`End`, (TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTim
SELECT
`tblproduction`.`ID`,
`tblproduction`.`OrderID`,
`tblproduction`.`ProductID`,
`tblproduction`.`Start`,
`tblproduction`.`End`,
(TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTime
FROM `tblproduction`
LEFT OUTER JOIN `tblproductionlog` ON `tblproduction`.`ID` = `tblproductionlog`.`ID`
WHERE tblproduction.OrderID = 'a'
GROUP BY `tblproduction`.`ID`
结果表为:
+--------+---------+---------+---------+---------+
| Id | OrderID | Start | End | TotTime |
+--------+---------+---------+---------+---------+
| 1 | a |17:17:50 |17:28:21 |631 |
+--------+---------+---------+---------+---------+
| 2 | a |17:34:55 |19:49:00 |8045 |
+--------+---------+---------+---------+---------+
我想要的是:
+---------+---------+
| OrderID | TotTime |
+---------+---------+
| a | 8676 |
+---------+---------+
我应该在查询中更改什么?您只需写下:-
SELECT
`tblproduction`.`OrderID`,
SUM(TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTime
FROM `tblproduction`
LEFT OUTER JOIN `tblproductionlog` ON `tblproduction`.`ID` = `tblproductionlog`.`ID`
WHERE tblproduction.OrderID = 'a'
GROUP BY `tblproduction`.`OrderID`;
这可以帮助您。您只需写下:-
SELECT
`tblproduction`.`OrderID`,
SUM(TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTime
FROM `tblproduction`
LEFT OUTER JOIN `tblproductionlog` ON `tblproduction`.`ID` = `tblproductionlog`.`ID`
WHERE tblproduction.OrderID = 'a'
GROUP BY `tblproduction`.`OrderID`;
这可以帮助您。您只需写下:-
SELECT
`tblproduction`.`OrderID`,
SUM(TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTime
FROM `tblproduction`
LEFT OUTER JOIN `tblproductionlog` ON `tblproduction`.`ID` = `tblproductionlog`.`ID`
WHERE tblproduction.OrderID = 'a'
GROUP BY `tblproduction`.`OrderID`;
这可以帮助您。您只需写下:-
SELECT
`tblproduction`.`OrderID`,
SUM(TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTime
FROM `tblproduction`
LEFT OUTER JOIN `tblproductionlog` ON `tblproduction`.`ID` = `tblproductionlog`.`ID`
WHERE tblproduction.OrderID = 'a'
GROUP BY `tblproduction`.`OrderID`;
这可以帮助您。删除您不需要的列,并按医嘱ID而不是ID汇总总时间,第三组
SELECT
`tblproduction`.`OrderID`,
SUM(TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTime
FROM `tblproduction`
LEFT OUTER JOIN `tblproductionlog` ON `tblproduction`.`ID` = `tblproductionlog`.`ID`
WHERE tblproduction.OrderID = 'a'
GROUP BY `tblproduction`.`OrderID`
删除您不需要的列,并按OrderID而不是ID汇总总时间,第三组
SELECT
`tblproduction`.`OrderID`,
SUM(TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTime
FROM `tblproduction`
LEFT OUTER JOIN `tblproductionlog` ON `tblproduction`.`ID` = `tblproductionlog`.`ID`
WHERE tblproduction.OrderID = 'a'
GROUP BY `tblproduction`.`OrderID`
删除您不需要的列,并按OrderID而不是ID汇总总时间,第三组
SELECT
`tblproduction`.`OrderID`,
SUM(TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTime
FROM `tblproduction`
LEFT OUTER JOIN `tblproductionlog` ON `tblproduction`.`ID` = `tblproductionlog`.`ID`
WHERE tblproduction.OrderID = 'a'
GROUP BY `tblproduction`.`OrderID`
删除您不需要的列,并按OrderID而不是ID汇总总时间,第三组
SELECT
`tblproduction`.`OrderID`,
SUM(TIME_TO_SEC(TIMEDIFF(`tblproduction`.`EndDateTime`,`tblproduction`.`StartDateTime`))) AS TotTime
FROM `tblproduction`
LEFT OUTER JOIN `tblproductionlog` ON `tblproduction`.`ID` = `tblproductionlog`.`ID`
WHERE tblproduction.OrderID = 'a'
GROUP BY `tblproduction`.`OrderID`
比我快几秒钟-我的+1:DI已经尝试了相同的查询,但当我手动汇总TotTime字段的值时,我得到了错误的值。我只需要从查询中删除左侧的外部联接行。谢谢大家。比我快几秒钟-我的+1:DI已经尝试了相同的查询,但是当我手动汇总TotTime字段的值时,我得到了错误的值。从查询中,我只需要删除左侧的外部联接行。谢谢大家。比我快几秒钟-我的+1:DI已经尝试了相同的查询,但是当我手动汇总TotTime字段的值时,我得到了错误的值。从查询中,我只需要删除左侧的外部联接行。谢谢大家。比我快几秒钟-我的+1:DI已经尝试了相同的查询,但是当我手动汇总TotTime字段的值时,我得到了错误的值。从查询中,我只需要删除左侧的外部联接行。谢谢大家。