Question

这是mysql语句：

SELECT 
MAX(`history_card`.`PART_NUMBER`)  AS `PART_NUMBER`, `history_card`.`SERIAL_NUMBER`, 
MAX(`history_card`.`POSITION`) AS `POSITION`, 
MAX(`history_card`.`RELEASE_DATE_TO_AIRCRAFT`)  AS `RELEASE_DATE_TO_AIRCRAFT`,
MAX(`history_card`.`DATE_OFF_AIRCRAFT`)  AS `DATE_OFF_AIRCRAFT`, 
MAX(`history_card`.`LAST_CAP_CHECKED_DATE`)  AS `LAST_CAP_CHECKED_DATE`, 
MAX(`history_card`.`DUE_CAP_CHECK_DATE`) AS `DUE_CAP_CHECK_DATE`, 
MAX(`history_card`.`JOB_REMARKS`) AS `JOB_REMARKS`, 
MAX(`history_card`.`TSO`) AS `TSO`, 
MAX(`history_card`.`BO_NUMBER`) AS `BO_NUMBER`, 
MAX(`history_card`.`REPAIR_ORDER_NUMBER`) AS `REPAIR_ORDER_NUMBER`, 
MAX(`history_card`.`LAST_OVERHAULED_DATE`) AS `LAST_OVERHAULED_DATE`, 
MAX(`history_card`.`DUE_OVERHAUL_DATE`) AS `DUE_OVERHAUL_DATE`, 
MAX(`history_card`.`REFRESHER_DATE`) AS `REFRESHER_DATE`, 
MAX(`history_card`.`REFRESHER_DONE`) AS `REFRESHER_DONE`, 
MAX(`history_card`.`GRN_ISSUE_DATE`) AS `GRN_ISSUE_DATE`, 
MAX(`history_card`.`WORKSHEET`) AS `WORKSHEET`, 
MAX(`history_card`.`ADDITIONAL_ATTACHMENT`) AS `ADDITIONAL_ATTACHMENT`, 
MAX(`history_card`.`GRN`) AS `GRN`
FROM `history_card`
GROUP BY `history_card`.`SERIAL_NUMBER`
HAVING (((MAX(`history_card`.`DUE_CAP_CHECK_DATE`)) BETWEEN  NOW() AND DATE_SUB(NOW(), INTERVAL -60 DAY) ))
ORDER BY MAX(`history_card`.`DUE_CAP_CHECK_DATE`) DESC;

而不是MAX（）我需要选择最后一行，这意味着必须选择ID DESC并限制为1条记录：ORDER BY id DESC LIMIT 1但是现在它返回最大值，因为我是从MS转换此查询，MS使用LAST()函数获取mysql中的最后一条记录我需要一个类似MySQL的解决方案

Answer 1

如果我正确理解了这个问题，那么这些方面的内容应该有效：

SELECT 
`history_card`.`SERIAL_NUMBER`, 
`history_card`.`PART_NUMBER`  AS `PART_NUMBER`, 
`history_card`.`POSITION` AS `POSITION`, 
`history_card`.`RELEASE_DATE_TO_AIRCRAFT`  AS `RELEASE_DATE_TO_AIRCRAFT`,
`history_card`.`DATE_OFF_AIRCRAFT`  AS `DATE_OFF_AIRCRAFT`, 
`history_card`.`LAST_CAP_CHECKED_DATE`  AS `LAST_CAP_CHECKED_DATE`, 
`history_card`.`DUE_CAP_CHECK_DATE` AS `DUE_CAP_CHECK_DATE`, 
`history_card`.`JOB_REMARKS` AS `JOB_REMARKS`, 
`history_card`.`TSO` AS `TSO`, 
`history_card`.`BO_NUMBER` AS `BO_NUMBER`, 
`history_card`.`REPAIR_ORDER_NUMBER` AS `REPAIR_ORDER_NUMBER`, 
`history_card`.`LAST_OVERHAULED_DATE` AS `LAST_OVERHAULED_DATE`, 
`history_card`.`DUE_OVERHAUL_DATE` AS `DUE_OVERHAUL_DATE`, 
`history_card`.`REFRESHER_DATE` AS `REFRESHER_DATE`, 
`history_card`.`REFRESHER_DONE` AS `REFRESHER_DONE`, 
`history_card`.`GRN_ISSUE_DATE` AS `GRN_ISSUE_DATE`, 
`history_card`.`WORKSHEET` AS `WORKSHEET`, 
`history_card`.`ADDITIONAL_ATTACHMENT` AS `ADDITIONAL_ATTACHMENT`, 
`history_card`.`GRN` AS `GRN`
FROM `history_card`
JOIN 
(
SELECT MAX(`history_card`.`ID`) ID, `history_card`.`SERIAL_NUMBER`
FROM `history_card`, 
WHERE `history_card`.`DUE_CAP_CHECK_DATE` BETWEEN  NOW() AND DATE_SUB(NOW(), INTERVAL -60 DAY) 
GROUP BY `history_card`.`SERIAL_NUMBER`
) HC 
ON `HC`.`ID`=`history_card`.`ID`
AND `HC`.`SERIAL_NUMBER`=`history_card`.`SERIAL_NUMBER`

Answer 2

SELECT TOP 1 * FROM .... ORDER BY ID DESC

应该是你的最后一条记录。

选择MySQL statment中的最后一行

2 个答案: