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<td height="25" background="/templets/img/31bg3.gif" align="left" class="guidet"> → 当前位置:<a href='http://www.bianceng.cn/'>首页</a>→<a href='/data/index.htm'>数据库</a>→<a href='/data/SQLServer/index.htm'>SQL Server</a>→<a href='/data/SQLServer/jc/index.htm'>SQL Server教程</a>→正文</td>
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<td align="center" valign="middle" class="til"><h3> MS SQL基础教程:数据库基本概念 </h3>
发布时间:2007-12-25 来源:网络/责编:编程入门 作者:佚名<br />
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</table><p> 3.1.1 数据(Data)</p>
<p> 所谓数据就是描述事物的符号.在我们的日常生活中,数据无所不,在数字、文字、图表、图象、声音等都是数据。人们通过数据来认识世界,交流信息。</p>
<p> 3.1.2 数据库(DB 即Database)</p>
<p> 数据库,顾名思义,就是数据存放的地方。在计算机中,数据库是数据和数据库对象的集合。所谓数据库对象是指表(Table)、视图(View)、存储过程(Stored Procedure)、触发器(Trigger) 等。这些数据库对象将在以后的章节中介绍。</p>
<p> 3.1.3 数据库管理系统(DBMS)</p>
<p> 数据库管理系统是用于管理数据的计算机软件。数据库管理系统使用户能方便地定义和操纵数据,维护数据的安全性和完整性,以及进行多用户下的并发控制和恢复数据库。</p>
<p> 3.1.4 数据库系统(DBS 即Database System)</p>
<p> 数据库系统狭义地讲是由数据库、数据库管理系统和用户构成、广义地讲是由计算机硬件、操作系统、数据库管理系统以及在它支持下建立起来的数据库、应用程序、用户和维护人员组成的一个整体。</p>
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<p>上一篇:<a href='/data/SQLServer/jc/200712/6305.htm'>MS SQL基础教程:从SQL Server 7.0升级</a> 下一篇:<a href='/data/SQLServer/jc/200712/6307.htm'>MS SQL基础教程:关系数据库</a> </p></td>
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