格式化时间 db2 格式化时间使用的 TO_CHAR(TIMESTAMP('2017-10-24 21:18:12'),'YYYY-MM-DD'): 测试sql:SELECT TO_CHAR(TIMESTAMP('2017-10-24 21:18:12'),'YYYY-MM-DD') FROM SYSIBM.DUAL; 计算时间差 db2计算时间差使用 timestampdiff (<n>, char(  timestamp('2017-12-24 00:00:10')-  timestamp…

SQL计算时间差并排除周末 CREATE FUNCTION DI_FN_GET_WorkDay (@begin DATETIME , @end DATETIME ) RETURNS int BEGIN IF @end > @begin BEGIN , ) END END ) ), ) AS DATETIME), @begin) ), , ) AS DATETIME)) RETURN @j END sql   计算结束时间  去除周六周末, SQL里dateadd计算日期时跳过周六周日两天计算日期…

function timediff( $begin_time, $end_time ) { if ( $begin_time < $end_time ) { $starttime = $begin_time; $endtime = $end_time; } else { $starttime = $end_time; $endtime = $begin_time; } $timediff = $endtime - $starttime; $days = intval( $timediff / 8…

比如:现在是2004-03-26 13:31:40        过去是:2004-01-02 11:30:24 我现在要获得两个日期差,差的形式为:XX天XX小时XX分XX秒 方法一: DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); try {     Date d1 = df.parse("2004-03-26 13:31:40");     Date d2 = df.parse(&quo…

declare @starttime as datetime declare @endtime as datetime set @starttime = '2009-11-24 15:10:00' set @endtime = '2009-11-24 15:12:24' )+':'+ )+':'+ ) as TimeEd 定义为函数 create FUNCTION [f_TimeBetween] ( @start datetime, @end datetime ) ) AS BEGIN )+':…

) -- mon dd yyyy hh:mmAM (or PM) ) -- mm/dd/yyyy - 10/02/2008 ) -- yyyy.mm.dd -- 2008.10.02 ) -- dd/mm/yyyy ) -- dd.mm.yyyy ) -- dd-mm-yyyy ) -- dd mon yyyy ) -- mon dd, yyyy ) -- hh:mm:ss ) -- mon dd yyyy hh:mm:ss:mmmAM (or PM) ) -- mm-dd-yyyy ) --…

;WITH res1 AS ( SELECT * FROM ( SELECT ROW_NUMBER() OVER (PARTITION BY F2 ORDER BY F1) AS rn,F1,F2 FROM dbo.test ) a ), res2 AS ( SELECT * FROM ( SELECT ROW_NUMBER() OVER (PARTITION BY F2 ORDER BY F1) AS rn,F1,F2 FROM dbo.test ) b ) ),DATEDIFF(ms,res…

select  *   from   task_list  where 1=1 and    datediff(dd,carateTime,getdate()) =0      定义和用法 DATEDIFF() 函数返回两个日期之间的天数. 语法 DATEDIFF(datepart,startdate,enddate) startdate 和 enddate 参数是合法的日期表达式. datepart 参数可以是下列的值: datepart 缩写 年 yy, yyyy 季度 qq, q 月 mm…

获取当前时间 func Now func Now() Time 1 Now returns the current local time. func (Time) UTC func (t Time) UTC() Time 1 UTC returns t with the location set to UTC. func (Time) Unix func (t Time) Unix() int64 1 Unix returns t as a Unix time, the number of se…

一.标准C和C++都可用 1.获取时间用time_t time( time_t * timer ),计算时间差使用double difftime( time_t timer1, time_t timer0 ). 精确到秒. 测试程序如下: #include <time.h> #include <stdio.h> int main() { time_t start ,end ; double cost; time(&start); sleep(); time(&end…