https://blog.youkuaiyun.com/yangtomzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/yangtom/article/details/1010495https://blog.youkuaiyun.com/yangtom/article/details/1010495yangtomWed, 02 Aug 2006 13:53:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/743585https://blog.youkuaiyun.com/yangtom/article/details/743585yangtomThu, 18 May 2006 09:33:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/475869https://blog.youkuaiyun.com/yangtom/article/details/475869yangtomFri, 09 Sep 2005 13:35:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/380688https://blog.youkuaiyun.com/yangtom/article/details/380688yangtomWed, 25 May 2005 17:17:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/338253https://blog.youkuaiyun.com/yangtom/article/details/338253yangtomWed, 06 Apr 2005 14:25:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/330296https://blog.youkuaiyun.com/yangtom/article/details/330296yangtomFri, 25 Mar 2005 16:44:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/328914https://blog.youkuaiyun.com/yangtom/article/details/328914yangtomThu, 24 Mar 2005 15:17:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/328900https://blog.youkuaiyun.com/yangtom/article/details/328900yangtomThu, 24 Mar 2005 15:11:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/315739https://blog.youkuaiyun.com/yangtom/article/details/315739yangtomWed, 09 Mar 2005 13:56:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/313640https://blog.youkuaiyun.com/yangtom/article/details/313640yangtomMon, 07 Mar 2005 15:14:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/268706https://blog.youkuaiyun.com/yangtom/article/details/268706yangtomWed, 26 Jan 2005 13:37:00 +0800100*2.5而不是sal/2.5>100。然而有些情况下，我们不能这样处理，必须要使用函数进行计算，这时我们需要应用oracle的函数索引。1.环境设置设置启动参数/会话/系统]]>https://blog.youkuaiyun.com/yangtom/article/details/257604https://blog.youkuaiyun.com/yangtom/article/details/257604yangtomTue, 18 Jan 2005 10:40:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/192265https://blog.youkuaiyun.com/yangtom/article/details/192265yangtomTue, 23 Nov 2004 15:15:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/184242https://blog.youkuaiyun.com/yangtom/article/details/184242yangtomWed, 17 Nov 2004 09:14:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/145396https://blog.youkuaiyun.com/yangtom/article/details/145396yangtomThu, 21 Oct 2004 10:58:00 +0800 variable a2 number;sql> select count(*) into :a2 from table where length(zd)=2;在要运行sql中，select .... from table where ]]>https://blog.youkuaiyun.com/yangtom/article/details/143184https://blog.youkuaiyun.com/yangtom/article/details/143184yangtomTue, 19 Oct 2004 19:56:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/143156https://blog.youkuaiyun.com/yangtom/article/details/143156yangtomTue, 19 Oct 2004 19:37:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/142305https://blog.youkuaiyun.com/yangtom/article/details/142305yangtomTue, 19 Oct 2004 11:05:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/142293https://blog.youkuaiyun.com/yangtom/article/details/142293yangtomTue, 19 Oct 2004 10:57:00 +0800https://blog.youkuaiyun.com/yangtom/article/details/142256https://blog.youkuaiyun.com/yangtom/article/details/142256yangtomTue, 19 Oct 2004 10:36:00 +0800