11 2012 档案

Difference betweeh Character sets and Collate
摘要：Character sets is a list of symbols. If you compare ASCII to latin1, with latin1 you will be able to write all american words because latin1 contains all ASCII characters, which are sufficient to write any american word. On the contrary, with ASCII you will not be able to write all words of Western 阅读全文
posted @ 2012-11-30 13:54 永远是学生 阅读(243) 评论(0) 推荐(0) 编辑
SQL处理层次型数据的策略对比：Adjacency list vs. nested sets: MySQL【转载】
摘要：原文地址：http://explainextended.com/2009/09/29/adjacency-list-vs-nested-sets-mysql/For detailed explanations of the terms, see the first article in the series:Adjacency list vs. nested sets: PostgreSQLThis is the last article of the series which covers MySQL.MySQL differs from the other systems, since i 阅读全文
posted @ 2012-11-24 10:37 永远是学生 阅读(2114) 评论(0) 推荐(0) 编辑
ClassNotFoundException: org.springframework.web.context.ContextLoaderListener
摘要：使用maven2 和 tomcat6 在eclipse wtp上开发基于Spring2.5+Struts2的web应用程序。启动tomcat的时候报错:2012-11-17 11:11:34 org.apache.catalina.core.StandardContext listenerStart严重: Error configuring application listener of class org.springframework.web.context.ContextLoaderListenerjava.lang.ClassNotFoundException: org.springf 阅读全文
posted @ 2012-11-17 21:18 永远是学生 阅读(2846) 评论(0) 推荐(0) 编辑