改成yyyy-MM-dd格式参考,其他格式可以继续截取的
CONCATENATE(left("202401040027",4),"-",mid("202401040027",5,2),"-",mid("202401040027",7,2))
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CONCATENATE(left("202401040027",4),"-",mid("202401040027",5,2),"-",mid("202401040027",7,2)," ",mid("202401040027",9,2),":",mid("202401040027",11,2),":00")
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