﻿<?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>C++博客-绿-文章分类-DataBase</title><link>http://www.cppblog.com/MyCBlog/category/18636.html</link><description>希望，是美好的……</description><language>zh-cn</language><lastBuildDate>Wed, 15 Feb 2012 09:54:01 GMT</lastBuildDate><pubDate>Wed, 15 Feb 2012 09:54:01 GMT</pubDate><ttl>60</ttl><item><title>数据库系统概述</title><link>http://www.cppblog.com/MyCBlog/articles/165679.html</link><dc:creator>绿</dc:creator><author>绿</author><pubDate>Wed, 15 Feb 2012 08:12:00 GMT</pubDate><guid>http://www.cppblog.com/MyCBlog/articles/165679.html</guid><wfw:comment>http://www.cppblog.com/MyCBlog/comments/165679.html</wfw:comment><comments>http://www.cppblog.com/MyCBlog/articles/165679.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.cppblog.com/MyCBlog/comments/commentRss/165679.html</wfw:commentRss><trackback:ping>http://www.cppblog.com/MyCBlog/services/trackbacks/165679.html</trackback:ping><description><![CDATA[<p style="margin-bottom:0pt; margin-top:0pt; "><span style=" font-size:10.5000pt; font-family:'宋体'; ">数据库产生的前提是计算机的产生。</span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style=" font-size:10.5000pt; font-family:'宋体'; ">数据库技术产生的催化剂：阿波罗登月</span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style=" font-size:10.5000pt; font-family:'宋体'; ">数据库产生的重要转折：关系理论</span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style=" font-size:10.5000pt; font-family:'宋体'; ">关系数据库领军人物：拉力埃里森</span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style=" font-size:10.5000pt; font-family:'宋体'; ">应用程序与数据的对应关系（数据库系统管理）：应用程序</span><span style=" font-size:10.5000pt; font-family:'宋体'; ">----&gt;DBMS-----&gt;数据库</span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style=" font-size:10.5000pt; font-family:'宋体'; ">数据库系统的产生于发展：数据和数据管系统</span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style=" font-size:10.5000pt; font-family:'宋体'; ">数据库：长期存在于计算机中的数据集合。</span></p><p style="margin-bottom:0pt; margin-top:0pt; "><span style=" font-size:10.5000pt; font-family:'宋体'; ">数据库管理系统：对数据库进行管理和控制<br /><img src="http://www.cppblog.com/images/cppblog_com/mycblog/QQ截图20120215160710.jpg" border="0" alt="" width="543" height="466" /><br /><img src="http://www.cppblog.com/images/cppblog_com/mycblog/QQ截图201202151609370.jpg" border="0" alt="" width="604" height="401" /><br /></span></p><img src ="http://www.cppblog.com/MyCBlog/aggbug/165679.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.cppblog.com/MyCBlog/" target="_blank">绿</a> 2012-02-15 16:12 <a href="http://www.cppblog.com/MyCBlog/articles/165679.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>