修改表中某个字段等于另一个字段减去 2 小时的 SQL

news2024/11/17 17:46:03

需求：将表中到达时间按照客户要求改为比赛时间的提前 N 小时，具体如下：

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表结构

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update 
contestSchedule 
SET 
`mainRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 2 HOUR, '%H:%i'),
`assistantRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 2 HOUR, '%H:%i'),
`onRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 2 HOUR, '%H:%i'),
`offRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 2 HOUR, '%H:%i')
 WHERE
`contestTypeId`=2;

update contestSchedule 
SET 
`mainRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 3 HOUR, '%H:%i'),
`assistantRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 3 HOUR, '%H:%i'),
`onRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 3 HOUR, '%H:%i'),
`offRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 3 HOUR, '%H:%i')
WHERE 
`contestTypeId`=3;

update 
contestSchedule 
SET 
`mainRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 3 HOUR, '%H:%i'),
`assistantRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 3 HOUR, '%H:%i'),
`onRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 2 HOUR, '%H:%i'),
`offRefereeArrivalTime`=DATE_FORMAT(CONCAT('2024-03-04 ',`gameTime`)- INTERVAL 3 HOUR - INTERVAL 10 MINUTE, '%H:%i') 
WHERE 
`contestTypeId`=1;