Fri, 22 Aug 2008 13:46:00 GMThttp://blog.csdn.net/BU_BetterYou/http://blog.csdn.net/BU_BetterYou/archive/2008/08/22/2813947.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2813947.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2813947.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2813947不同的主流数据库对BOOLEAN的实现情况。<img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2813947.aspx" width = "1" height = "1" />Fri, 22 Aug 2008 21:46:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/08/22/2813947.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/08/22/2813947.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/08/22/2813947.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401697/5473655http://blog.csdn.net/BU_BetterYou/archive/2008/08/20/2801734.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2801734.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2801734.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2801734不同数据库间对SQL标准中一次插入多行数据的支持情况比较。<img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2801734.aspx" width = "1" height = "1" />Wed, 20 Aug 2008 22:46:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/08/20/2801734.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/08/20/2801734.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/08/20/2801734.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401698/5473655http://blog.csdn.net/BU_BetterYou/archive/2008/08/04/2765834.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2765834.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2765834.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2765834带有偏移量的限制 目标：仅需要结果集中的n行数据，并试图忽略前面m行的数据。通常只在有ORDER BY的表达式中才有意义。<img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2765834.aspx" width = "1" height = "1" />Mon, 04 Aug 2008 21:43:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/08/04/2765834.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/08/04/2765834.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/08/04/2765834.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401699/5473655http://blog.csdn.net/BU_BetterYou/archive/2008/07/31/2745367.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2745367.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2745367.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2745367与上述的简单限制结果集查询类似，但需要包含等值的关系。所以，查询可能会返回超过n行的数据。 有的称之为配额查询(quota-query)。 <img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2745367.aspx" width = "1" height = "1" />Thu, 31 Jul 2008 21:26:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/31/2745367.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/31/2745367.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/31/2745367.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401700/5473655http://blog.csdn.net/BU_BetterYou/archive/2008/07/30/2739688.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2739688.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2739688.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2739688本文介绍了各种数据库中对结果集限制的不同方法。<img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2739688.aspx" width = "1" height = "1" />Wed, 30 Jul 2008 22:20:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/30/2739688.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/30/2739688.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/30/2739688.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401701/5473655http://blog.csdn.net/BU_BetterYou/archive/2008/07/29/2731193.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2731193.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2731193.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2731193SQL标准指出关系(relation)是未排序的，但结果集可能在通过游标返回时被排序，标准中未指定在排序比较中NULL值与非NULL值的比较规则，但所有的NULL在排序中被视为一样的值，而且所有的NULL值必须排于非NULL值之前或之后。<img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2731193.aspx" width = "1" height = "1" />Tue, 29 Jul 2008 23:18:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/29/2731193.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/29/2731193.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/29/2731193.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401702/5473655http://blog.csdn.net/BU_BetterYou/archive/2008/07/28/2724699.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2724699.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2724699.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2724699本文的主要目的是将不同数据库产品之间的SQL不同进行比较，对需要进行SQL移植或对不同数据库平台的SQL语言感兴趣的人提供相关信息。我们在下文中通过表格来比较不同的DBMS产品处理SQL时的特性。如果允许，表格中还将根据SQL标准来描述这些实现都应该做什么事情。<img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2724699.aspx" width = "1" height = "1" />Mon, 28 Jul 2008 23:06:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/28/2724699.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/28/2724699.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/28/2724699.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401703/5473655http://blog.csdn.net/BU_BetterYou/archive/2008/07/14/2647254.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2647254.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2647254.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2647254Facebook拥有数千台服务器(虽然webcast的片子上有一则新闻说已经达到10,000台服务器，但webcast上Jason还是说的是数千台——thousands of servers)，这些服务器大部分都有明确的分工，各司其职；使用MySQL数据库；PHP运行在Apache上，并且用C开发了一些扩展和封装；在Facebook的应用层和数据库层之间，他们使用了Memcached技术，作为缓存……<img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2647254.aspx" width = "1" height = "1" />Mon, 14 Jul 2008 18:47:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/14/2647254.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/14/2647254.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/14/2647254.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401704/5473655http://blog.csdn.net/BU_BetterYou/archive/2008/07/01/2602156.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2602156.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2602156.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2602156JavaFX作为RIA的解决方案之一，最重要的功能之一就是要具备和服务器端的异步通信能力。如何获取与服务器端的通信能力呢？JavaFX有多种解决方案。我们今天在这里介绍的是其中的一种，使用RMI（远程方法调用）。 <img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2602156.aspx" width = "1" height = "1" />Tue, 01 Jul 2008 22:50:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/01/2602156.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/01/2602156.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/07/01/2602156.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401705/5473655http://blog.csdn.net/BU_BetterYou/archive/2008/06/26/2589528.aspxhttp://blog.csdn.net/BU_BetterYou/comments/2589528.aspx0http://blog.csdn.net/BU_BetterYou/comments/commentRss/2589528.aspxhttp://tb.blog.csdn.net/TrackBack.aspx?PostId=2589528JavaFX是Sun推出的RIA应用的解决方案，在我的前两篇翻译的BLOG中(RIA(Rich Internet Application)的现状和未来 II、RIA(Rich Internet Application)的现状和未来 I)有简单介绍。 我们今天先来看看如何在Eclipse中编写JavaFX，然后在后续的内容中将详细介绍如何通过这样的Client Script Engine(客户端脚本引擎)去架构RIA应用，Client Script Engine(客户端脚本引擎)如何与服务器协同工作等问题…… <img src ="http://blog.csdn.net/BU_BetterYou/aggbug/2589528.aspx" width = "1" height = "1" />Fri, 27 Jun 2008 01:09:00 +0800BU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/06/26/2589528.aspx#Feedbackhttp://blog.csdn.net/BU_BetterYou/archive/2008/06/26/2589528.aspxBU_BetterYouhttp://blog.csdn.net/BU_BetterYou/archive/2008/06/26/2589528.aspxhttp://blog.csdn.net/BU_BetterYou/feed.aspxcsdn.net/BU_BetterYou/~7364142/207401706/5473655