oracle天数加个随机数,如何给一个表某列加上指定的随机数-优快云博客

本文介绍了一种使用SQL语句来为表中的指定列加上随机分钟数的方法，通过示例展示了如何利用CHECKSUM(NEWID())函数生成随机数，并通过DATEADD函数实现日期时间的精确调整。

如何给一个表某列加上指定的随机数

一、原始数据

create table #test (name varchar(10),ddate datetime,date1 datetime,date2 datetime)

insert into #test

select '张三','2013-09-01','2013-09-01 09:00:00.000','2013-09-01 17:00:00.000' union all

select '张三','2013-09-02','2013-09-02 09:00:00.000','2013-09-02 17:00:00.000' union all

select '张三','2013-09-03','2013-09-03 09:00:00.000','2013-09-03 17:00:00.000' union all

select '张三','2013-09-04','2013-09-04 09:00:00.000','2013-09-04 17:00:00.000' union all

select '张三','2013-09-05','2013-09-05 09:00:00.000','2013-09-05 17:00:00.000' union all

select '张三','2013-09-06','2013-09-06 09:00:00.000','2013-09-06 17:00:00.000'

select * from #test

create table #test (name varchar(10),ddate datetime,date1 datetime,date2 datetime) insert into #test select '张三','2013-09-01','2013-09-01 09:00:00.000','2013-09-01 17:00:00.000' union allselect '张三','2013-09-02','2013-09-02 09:00:00.000','2013-09-02 17:00:00.000' union allselect '张三','2013-09-03','2013-09-03 09:00:00.000','2013-09-03 17:00:00.000' union allselect '张三','2013-09-04','2013-09-04 09:00:00.000','2013-09-04 17:00:00.000' union allselect '张三','2013-09-05','2013-09-05 09:00:00.000','2013-09-05 17:00:00.000' union allselect '张三','2013-09-06','2013-09-06 09:00:00.000','2013-09-06 17:00:00.000' --sql: select name,ddate, date1 = DATEADD(MINUTE, ABS(CHECKSUM(NEWID()))%10 + 1, date1), date2 = DATEADD(MINUTE, ABS(CHECKSUM(NEWID()))%11 + 5, date2) from #test /* name ddate date1 date2 张三 2013-09-01 00:00:00.000 2013-09-01 09:08:00.000 2013-09-01 17:10:00.000 张三 2013-09-02 00:00:00.000 2013-09-02 09:10:00.000 2013-09-02 17:11:00.000 张三 2013-09-03 00:00:00.000 2013-09-03 09:08:00.000 2013-09-03 17:06:00.000 张三 2013-09-04 00:00:00.000 2013-09-04 09:08:00.000 2013-09-04 17:06:00.000 张三 2013-09-05 00:00:00.000 2013-09-05 09:03:00.000 2013-09-05 17:05:00.000 张三 2013-09-06 00:00:00.000 2013-09-06 09:09:00.000 2013-09-06 17:13:00.000 */