Comments on: 如何用SQL返回两个日期之间的所有连续日期 http://www.os2ora.com/how-to-return-continuous-dates-between-two-dates/ 专注于现实世界Oracle数据库的高性能，高可扩展性与新一代数据库Exadata架构 Thu, 08 Sep 2011 13:01:35 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Validba'S Home » 求两个时间点之间的时间序列问题 http://www.os2ora.com/how-to-return-continuous-dates-between-two-dates/comment-page-1/#comment-679 Validba'S Home » 求两个时间点之间的时间序列问题 Fri, 23 Jul 2010 09:51:45 +0000 http://www.os2ora.com/%e5%a6%82%e4%bd%95%e7%94%a8sql%e8%bf%94%e5%9b%9e%e4%b8%a4%e4%b8%aa%e6%97%a5%e6%9c%9f%e4%b9%8b%e9%97%b4%e7%9a%84%e6%89%80%e6%9c%89%e8%bf%9e%e7%bb%ad%e6%97%a5%e6%9c%9f/#comment-679 [...] 最后从http://www.os2ora.com/how-to-return-continuous-dates-between-two-dates/发现一个同样的案例,OS2提供了一个非常不错的方法（关于connect by的性能分析详见http://www.os2ora.com/connect-by-performance-tunning/）： [...] [...] 最后从http://www.os2ora.com/how-to-return-continuous-dates-between-two-dates/发现一个同样的案例,OS2提供了一个非常不错的方法（关于connect by的性能分析详见http://www.os2ora.com/connect-by-performance-tunning/）： [...]

]]> By: giser http://www.os2ora.com/how-to-return-continuous-dates-between-two-dates/comment-page-1/#comment-278 giser Tue, 23 Feb 2010 02:28:14 +0000 http://www.os2ora.com/%e5%a6%82%e4%bd%95%e7%94%a8sql%e8%bf%94%e5%9b%9e%e4%b8%a4%e4%b8%aa%e6%97%a5%e6%9c%9f%e4%b9%8b%e9%97%b4%e7%9a%84%e6%89%80%e6%9c%89%e8%bf%9e%e7%bb%ad%e6%97%a5%e6%9c%9f/#comment-278 还有一个问题，connect BY不能超过100层啊，我用的是92 还有一个问题，connect BY不能超过100层啊，我用的是92

]]> By: giser http://www.os2ora.com/how-to-return-continuous-dates-between-two-dates/comment-page-1/#comment-276 giser Tue, 23 Feb 2010 01:33:19 +0000 http://www.os2ora.com/%e5%a6%82%e4%bd%95%e7%94%a8sql%e8%bf%94%e5%9b%9e%e4%b8%a4%e4%b8%aa%e6%97%a5%e6%9c%9f%e4%b9%8b%e9%97%b4%e7%9a%84%e6%89%80%e6%9c%89%e8%bf%9e%e7%bb%ad%e6%97%a5%e6%9c%9f/#comment-276 你好，请问为什么 SELECT to_char((to_date('20090202', 'yyyyMMdd') + level - 1), 'yyyyMMdd') day FROM dual connect BY to_date('20090202', 'yyyyMMdd') + level - 1 <= to_date('20090102', 'yyyyMMdd'); 会返回一条记录呢?应该是一条都不返回啊 你好，请问为什么
SELECT to_char((to_date(’20090202′, ‘yyyyMMdd’) + level – 1), ‘yyyyMMdd’) day
FROM dual
connect BY to_date(’20090202′, ‘yyyyMMdd’) + level – 1 <=
to_date('20090102', 'yyyyMMdd');
会返回一条记录呢?应该是一条都不返回啊

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