https://blog.youkuaiyun.com/seared2008zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/seared2008/article/details/146376019https://blog.youkuaiyun.com/seared2008/article/details/146376019seared2008Wed, 19 Mar 2025 17:29:28 +0800https://blog.youkuaiyun.com/seared2008/article/details/146238737https://blog.youkuaiyun.com/seared2008/article/details/146238737seared2008Thu, 13 Mar 2025 18:02:11 +0800https://blog.youkuaiyun.com/seared2008/article/details/145638464https://blog.youkuaiyun.com/seared2008/article/details/145638464seared2008Fri, 14 Feb 2025 17:30:28 +0800https://blog.youkuaiyun.com/seared2008/article/details/145378136https://blog.youkuaiyun.com/seared2008/article/details/145378136seared2008Mon, 27 Jan 2025 11:03:28 +0800https://blog.youkuaiyun.com/seared2008/article/details/145038930https://blog.youkuaiyun.com/seared2008/article/details/145038930seared2008Thu, 09 Jan 2025 17:48:57 +0800https://blog.youkuaiyun.com/seared2008/article/details/143850520https://blog.youkuaiyun.com/seared2008/article/details/143850520seared2008Mon, 18 Nov 2024 11:36:25 +0800https://blog.youkuaiyun.com/seared2008/article/details/143391453https://blog.youkuaiyun.com/seared2008/article/details/143391453seared2008Thu, 31 Oct 2024 11:44:24 +0800https://blog.youkuaiyun.com/seared2008/article/details/143389824https://blog.youkuaiyun.com/seared2008/article/details/143389824seared2008Thu, 31 Oct 2024 11:26:40 +0800https://blog.youkuaiyun.com/seared2008/article/details/143389253https://blog.youkuaiyun.com/seared2008/article/details/143389253seared2008Thu, 31 Oct 2024 11:21:44 +0800https://blog.youkuaiyun.com/seared2008/article/details/143226895https://blog.youkuaiyun.com/seared2008/article/details/143226895seared2008Fri, 25 Oct 2024 09:51:57 +0800https://blog.youkuaiyun.com/seared2008/article/details/143226866https://blog.youkuaiyun.com/seared2008/article/details/143226866seared2008Fri, 25 Oct 2024 09:50:53 +0800https://blog.youkuaiyun.com/seared2008/article/details/143212046https://blog.youkuaiyun.com/seared2008/article/details/143212046seared2008Thu, 24 Oct 2024 16:11:40 +0800https://blog.youkuaiyun.com/seared2008/article/details/143206061https://blog.youkuaiyun.com/seared2008/article/details/143206061seared2008Thu, 24 Oct 2024 12:30:52 +0800https://blog.youkuaiyun.com/seared2008/article/details/98968677https://blog.youkuaiyun.com/seared2008/article/details/98968677seared2008Fri, 09 Aug 2019 17:10:08 +0800https://blog.youkuaiyun.com/seared2008/article/details/8626082https://blog.youkuaiyun.com/seared2008/article/details/8626082seared2008Fri, 01 Mar 2013 14:40:08 +0800https://blog.youkuaiyun.com/seared2008/article/details/7840171https://blog.youkuaiyun.com/seared2008/article/details/7840171seared2008Tue, 07 Aug 2012 17:39:10 +0800https://blog.youkuaiyun.com/seared2008/article/details/7071260https://blog.youkuaiyun.com/seared2008/article/details/7071260seared2008Wed, 14 Dec 2011 17:33:01 +0800https://blog.youkuaiyun.com/seared2008/article/details/7067852https://blog.youkuaiyun.com/seared2008/article/details/7067852seared2008Tue, 13 Dec 2011 17:56:10 +0800https://blog.youkuaiyun.com/seared2008/article/details/7066622https://blog.youkuaiyun.com/seared2008/article/details/7066622seared2008Tue, 13 Dec 2011 13:49:55 +0800https://blog.youkuaiyun.com/seared2008/article/details/7066314https://blog.youkuaiyun.com/seared2008/article/details/7066314seared2008Tue, 13 Dec 2011 11:54:28 +0800='abc' and name 2.用>=替代>:如:id>3和id>=4的区别是,前者dbms先跳id=3的记录,往后扫描表,而后者直接跳到4往后扫描 3.利用LIMIT 1取得唯一行：一个LIMIT 1会令你的查询更加有效。这样数据库引擎发现只有1后将停止]]>