https://blog.csdn.net/tryonmindzh-cnhttps://blog.csdn.net/https://blog.csdn.net/tryonmind/article/details/51498198https://blog.csdn.net/tryonmind/article/details/51498198tryonmindWed, 25 May 2016 14:33:35 +0800https://blog.csdn.net/tryonmind/article/details/84176615https://blog.csdn.net/tryonmind/article/details/84176615tryonmindWed, 28 Mar 2012 11:27:46 +0800https://blog.csdn.net/tryonmind/article/details/5917797https://blog.csdn.net/tryonmind/article/details/5917797tryonmindFri, 01 Oct 2010 13:50:00 +0800QQREADERCCD897EBEFD2DDE6]]>https://blog.csdn.net/tryonmind/article/details/3740153https://blog.csdn.net/tryonmind/article/details/3740153tryonmindFri, 09 Jan 2009 13:02:00 +0800https://blog.csdn.net/tryonmind/article/details/2641086https://blog.csdn.net/tryonmind/article/details/2641086tryonmindFri, 11 Jul 2008 22:48:00 +0800https://blog.csdn.net/tryonmind/article/details/2202068https://blog.csdn.net/tryonmind/article/details/2202068tryonmindFri, 21 Mar 2008 10:41:00 +0800https://blog.csdn.net/tryonmind/article/details/1795882https://blog.csdn.net/tryonmind/article/details/1795882tryonmindSat, 22 Sep 2007 15:33:00 +0800https://blog.csdn.net/tryonmind/article/details/1766299https://blog.csdn.net/tryonmind/article/details/1766299tryonmindFri, 31 Aug 2007 08:48:00 +0800    //计算天数差的函数 yyyy-mm-dd (sDate2-sDate1)间的天数  function  DateDiff(sDate1,  sDate2)...{    //sDate1和sDate2是2006-12-18格式         var oDate1  = StringToDate(]]>https://blog.csdn.net/tryonmind/article/details/1750641https://blog.csdn.net/tryonmind/article/details/1750641tryonmindSun, 19 Aug 2007 18:38:00 +0800https://blog.csdn.net/tryonmind/article/details/1727063https://blog.csdn.net/tryonmind/article/details/1727063tryonmindSun, 05 Aug 2007 15:24:00 +0800 select ascii(A) A,ascii(a) a,ascii(0) zero,ascii( ) space from dual;        A         A      ZERO     SPACE--------- --------- --------- --------- ]]>https://blog.csdn.net/tryonmind/article/details/1648267https://blog.csdn.net/tryonmind/article/details/1648267tryonmindMon, 11 Jun 2007 22:07:00 +0800https://blog.csdn.net/tryonmind/article/details/1648270https://blog.csdn.net/tryonmind/article/details/1648270tryonmindMon, 11 Jun 2007 22:06:00 +0800https://blog.csdn.net/tryonmind/article/details/1648261https://blog.csdn.net/tryonmind/article/details/1648261tryonmindMon, 11 Jun 2007 22:02:00 +0800https://blog.csdn.net/tryonmind/article/details/1648242https://blog.csdn.net/tryonmind/article/details/1648242tryonmindMon, 11 Jun 2007 21:45:00 +0800https://blog.csdn.net/tryonmind/article/details/1639580https://blog.csdn.net/tryonmind/article/details/1639580tryonmindTue, 05 Jun 2007 18:42:00 +0800https://blog.csdn.net/tryonmind/article/details/1639576https://blog.csdn.net/tryonmind/article/details/1639576tryonmindTue, 05 Jun 2007 18:35:00 +0800https://blog.csdn.net/tryonmind/article/details/1639537https://blog.csdn.net/tryonmind/article/details/1639537tryonmindTue, 05 Jun 2007 17:56:00 +0800https://blog.csdn.net/tryonmind/article/details/1639168https://blog.csdn.net/tryonmind/article/details/1639168tryonmindTue, 05 Jun 2007 14:26:00 +0800https://blog.csdn.net/tryonmind/article/details/1628067https://blog.csdn.net/tryonmind/article/details/1628067tryonmindMon, 28 May 2007 12:42:00 +0800>select子句中避免使用 * 使用*后Oracle是通过查询数据字典完成的, 这就会浪费更多的时间>>选择最有效率的表名顺序Oracle按照从右到左的顺序处理FROM子句中的表名,因此FROM子句中写在最后的表(基础表)将被最先处理. 在包含多个表的情况下,应该选择记录条数最少的表作为基础表. 如果有3个以上的表连接查询, 应选择交叉表作为基础表. >>有效率的where子句]]>https://blog.csdn.net/tryonmind/article/details/1626802https://blog.csdn.net/tryonmind/article/details/1626802tryonmindSat, 26 May 2007 16:14:00 +0800