修改内容为修改yyyy-mm-dd为对应的日期,时间不变
UPDATE `order` set update_time = ADDTIME (date('2021-08-21') + interval 0 hour,time(update_time))
若想修改为当前的日期,则为
UPDATE `order` set update_time = ADDTIME (CURDATE() + interval 0 hour,time(update_time))
若只想修改日期年份:
update departmentkpi set departmentAddPointTime = DATE_FORMAT(departmentAddPointTime,'2021-%m-%d') where DATE_FORMAT(departmentAddPointTime,'%Y-%m-%d') like '2019%';
更改字段中某些文字:
UPDATE departmentkpi SET quarter = REPLACE (quarter,'2019','2021');