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yinzhihua2008

分类中“我的实验室”是我在日常工作中的一些知识总结,有些写的比较匆忙,可能大家在阅读时会产生困扰,后期有时间我会重新整理编辑,谢谢大家的到访,您们的支持是我前进的动力！

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oracle相关SQL

2009-09-01 08:48:02| 分类： ORACLE | 标签： |举报 |字号大中小订阅

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'加时间

select
sysdate,
(sysdate+1) as add_a_day,--加天数
(sysdate+1/24) as add_an_hour,--,加小时
(sysdate+1/(24*60)) as add_a_minute,--加分
(sysdate+1/(24*60*60)) as add_a_second --加秒
from dual

'选时间差分钟

select Round(To_Number(To_Date(endtime, 'HH24MI') - To_Date(begintime, 'HH24MI')) * 24, 1 ) as ptime from tbl

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