2020年5月21日
sqlserver 获取每组最接近某个时间点的一条数据
摘要： with T1 as ( SELECT ROW_NUMBER() over (PARTITION By MachineCode order by ABS(DATEDIFF(MILLISECOND,'2019-12-10 13:21:32.162' ,[Time]))) as rowid,* FROM 阅读全文
posted @ 2020-05-21 17:19 扶我起来我还要敲 阅读(1040) 评论(0) 推荐(0)
sqlsever数据库中查询与某一时间点最接近的记录
摘要： 求时间字段与输入时间点的时间差j绝对值，最后取最小时间差 SELECT min(ABS(DATEDIFF(MILLISECOND,'2019-12-18 14:11:00.000' ,s.Time))) AS diff FROM EnergyConsumptions AS s 阅读全文
posted @ 2020-05-21 15:35 扶我起来我还要敲 阅读(947) 评论(0) 推荐(0)