﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>博客园-真的有外星人吗？-随笔分类-database</title><link>http://www.cnblogs.com/nokiaguy/category/137462.html</link><description>假如这个世界上只剩下你一个人，当你正坐在屋子里的时候，这时突然响起了敲门声，那么会是谁呢？</description><language>zh-cn</language><lastBuildDate>Tue, 02 Sep 2008 19:29:47 GMT</lastBuildDate><pubDate>Tue, 02 Sep 2008 19:29:47 GMT</pubDate><ttl>60</ttl><item><title>妙用SQL Server聚合函数和子查询迭代求和</title><link>http://www.cnblogs.com/nokiaguy/archive/2008/09/02/1281968.html</link><dc:creator>银河使者</dc:creator><author>银河使者</author><pubDate>Tue, 02 Sep 2008 05:03:00 GMT</pubDate><guid>http://www.cnblogs.com/nokiaguy/archive/2008/09/02/1281968.html</guid><wfw:comment>http://www.cnblogs.com/nokiaguy/comments/1281968.html</wfw:comment><comments>http://www.cnblogs.com/nokiaguy/archive/2008/09/02/1281968.html#Feedback</comments><slash:comments>10</slash:comments><wfw:commentRss>http://www.cnblogs.com/nokiaguy/comments/commentRss/1281968.html</wfw:commentRss><trackback:ping>http://www.cnblogs.com/nokiaguy/services/trackbacks/1281968.html</trackback:ping><description><![CDATA[摘要: 本文介绍了如何通过SQL Server的sum聚合函数和多层子查询来进行迭代求和，并在最后给出了通过建立函数的方式来简化迭代求和的SQL语句。&nbsp;&nbsp;<a href='http://www.cnblogs.com/nokiaguy/archive/2008/09/02/1281968.html'>阅读全文</a><img src ="http://www.cnblogs.com/nokiaguy/aggbug/1281968.html?type=1" width = "1" height = "1" />]]></description></item><item><title>用Session和唯一索引字段实现通用Web分页功能  </title><link>http://www.cnblogs.com/nokiaguy/archive/2008/08/23/1274769.html</link><dc:creator>银河使者</dc:creator><author>银河使者</author><pubDate>Sat, 23 Aug 2008 09:59:00 GMT</pubDate><guid>http://www.cnblogs.com/nokiaguy/archive/2008/08/23/1274769.html</guid><wfw:comment>http://www.cnblogs.com/nokiaguy/comments/1274769.html</wfw:comment><comments>http://www.cnblogs.com/nokiaguy/archive/2008/08/23/1274769.html#Feedback</comments><slash:comments>14</slash:comments><wfw:commentRss>http://www.cnblogs.com/nokiaguy/comments/commentRss/1274769.html</wfw:commentRss><trackback:ping>http://www.cnblogs.com/nokiaguy/services/trackbacks/1274769.html</trackback:ping><description><![CDATA[摘要: 本文介绍了一种通过Web系统中的Session对象和数据表的唯一索引字段来实现Web分页的方法。这种方法是通用的，适合于所有的数据库（SQL Server、Oracle、access、paradox等），并且不需要在数据库中建立任何资源（如存储过程、视图等）。需要的唯一条件就是表中要有一个唯一索引字段。&nbsp;&nbsp;<a href='http://www.cnblogs.com/nokiaguy/archive/2008/08/23/1274769.html'>阅读全文</a><img src ="http://www.cnblogs.com/nokiaguy/aggbug/1274769.html?type=1" width = "1" height = "1" />]]></description></item><item><title>在SQL Server2005中按列连接字符串的三种方法</title><link>http://www.cnblogs.com/nokiaguy/archive/2008/06/25/1229594.html</link><dc:creator>银河使者</dc:creator><author>银河使者</author><pubDate>Wed, 25 Jun 2008 05:01:00 GMT</pubDate><guid>http://www.cnblogs.com/nokiaguy/archive/2008/06/25/1229594.html</guid><wfw:comment>http://www.cnblogs.com/nokiaguy/comments/1229594.html</wfw:comment><comments>http://www.cnblogs.com/nokiaguy/archive/2008/06/25/1229594.html#Feedback</comments><slash:comments>14</slash:comments><wfw:commentRss>http://www.cnblogs.com/nokiaguy/comments/commentRss/1229594.html</wfw:commentRss><trackback:ping>http://www.cnblogs.com/nokiaguy/services/trackbacks/1229594.html</trackback:ping><description><![CDATA[摘要: 本文介绍了按列连接一个字符串的三种方法，其中一种方法是使用CLR（在本例中使用C#）来实现SQL Server2005的扩展聚合函数的方式来实现。这种方式更加灵活，但在实现上也更加复杂。如果能很好地掌握它，就可以实现非常“酷”的功能！&nbsp;&nbsp;<a href='http://www.cnblogs.com/nokiaguy/archive/2008/06/25/1229594.html'>阅读全文</a><img src ="http://www.cnblogs.com/nokiaguy/aggbug/1229594.html?type=1" width = "1" height = "1" />]]></description></item><item><title>透视MySQL数据库之更新语句</title><link>http://www.cnblogs.com/nokiaguy/archive/2008/06/01/1211701.html</link><dc:creator>银河使者</dc:creator><author>银河使者</author><pubDate>Sun, 01 Jun 2008 13:04:00 GMT</pubDate><guid>http://www.cnblogs.com/nokiaguy/archive/2008/06/01/1211701.html</guid><wfw:comment>http://www.cnblogs.com/nokiaguy/comments/1211701.html</wfw:comment><comments>http://www.cnblogs.com/nokiaguy/archive/2008/06/01/1211701.html#Feedback</comments><slash:comments>6</slash:comments><wfw:commentRss>http://www.cnblogs.com/nokiaguy/comments/commentRss/1211701.html</wfw:commentRss><trackback:ping>http://www.cnblogs.com/nokiaguy/services/trackbacks/1211701.html</trackback:ping><description><![CDATA[摘要: 用于操作数据库的SQL一般分为两种，一种是查询语句，也就是我们所说的SELECT语句，另外一种就是更新语句，也叫做数据操作语句。言外之意，就是对数据进行修改。在标准的SQL中有3个语句，它们是INSERT、UPDATE以及DELETE。在MySQL中又多了一个REPLACE语句，因此，本文以MySQL为背景来讨论如何使有SQL中的更新语句。 &nbsp;&nbsp;<a href='http://www.cnblogs.com/nokiaguy/archive/2008/06/01/1211701.html'>阅读全文</a><img src ="http://www.cnblogs.com/nokiaguy/aggbug/1211701.html?type=1" width = "1" height = "1" />]]></description></item><item><title>MySQL查询的性能优化</title><link>http://www.cnblogs.com/nokiaguy/archive/2008/05/24/1206469.html</link><dc:creator>银河使者</dc:creator><author>银河使者</author><pubDate>Sat, 24 May 2008 08:54:00 GMT</pubDate><guid>http://www.cnblogs.com/nokiaguy/archive/2008/05/24/1206469.html</guid><wfw:comment>http://www.cnblogs.com/nokiaguy/comments/1206469.html</wfw:comment><comments>http://www.cnblogs.com/nokiaguy/archive/2008/05/24/1206469.html#Feedback</comments><slash:comments>6</slash:comments><wfw:commentRss>http://www.cnblogs.com/nokiaguy/comments/commentRss/1206469.html</wfw:commentRss><trackback:ping>http://www.cnblogs.com/nokiaguy/services/trackbacks/1206469.html</trackback:ping><description><![CDATA[摘要: 查询是数据库技术中最常用的操作。查询操作的过程比较简单，首先从客户端发出查询的SQL语句，数据库服务端在接收到由客户端发来的SQL语句后，执行这条SQL语句，然后将查询到的结果返回给客户端。虽然过程很简单，但不同的查询方式和数据库设置，对查询的性能将会有很在的影响。因此，本文就在 MySQL中常用的查询优化技术进行讨论。&nbsp;&nbsp;<a href='http://www.cnblogs.com/nokiaguy/archive/2008/05/24/1206469.html'>阅读全文</a><img src ="http://www.cnblogs.com/nokiaguy/aggbug/1206469.html?type=1" width = "1" height = "1" />]]></description></item></channel></rss>