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<td align="center" valign="middle" class="til"><h3> MS SQL基础教程:查看与修改索引 </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> 8.3.1 用Enterprise Manager 查看、修改索引</p>
<p> 在Enterprise Manager 中选择要查看的数据库，然后在任务板中选择“Tables & Indexes”页框，则会在任务板中显示此数据库的所有用户表的索引信息，如图8-11 所示。</p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/allimg/070501/2015430.gif" /></p>
<p> 要查看并修改索引的详细信息，需要在所要查看的表上单击右键，从快捷菜单中选择 “All Tasks”子菜单中的“Manage Indexes” 选项，将出现如图8-9 所示的索引管理对话框。选择要查看或修改的索引，单击“Edit” 按钮，出现如图8-12 所示的修改索引对话框。</p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b6120HM01191M.gif" /></p>
<p> 在图8-12 所示的修改索引对话框中，可以修改索引的大部分设置，还可以直接修改其SQL 脚本，只需按下“Edit SQL… ”按钮，即可显示如图8-13 所示的SQL 脚本编辑框。可以在其中编辑、测试和运行索引的SQL 脚本。</p>
<p> 但在图8-13 的索引的SQL 脚本编辑对话框中不能修改索引的名称，程序方式的索引名称修改需要使用系统存储过程Sp_rename 。要在企业管理器中修改索引的名称，改变其所属文件组等其它信息，则需要在表的属性对话框中进行，如图8-14 所示。应注意，图 8-14 所示的属性对话框是从图7-4 所示的修改表结构对话框中调用的，而不是直接通过快捷菜单的“属性”菜单项调用。</p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b6120IR012Y61.gif" /><img onclick="get_larger(this)" alt="" src="/upimg/071226/11b6120J6013b16.gif" /></p>
<p> 8.3.2 用存储过程Sp_helpindex 查看索引</p>
<p> Sp_helpindex 存储过程可以返回表的所有索引的信息。其语法如下：</p>
<p> sp_helpindex [@objname =] 'name'</p>
<p> 其中[@objname =] 'name'子句指定当前数据库中的表的名称。</p>
<p> 例8-4： 查看表orders 的索引。</p>
<p> exec sp_helpindex orders</p>
<p> 运行结果如下</p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b6120KL01430P.gif" /></p>
<p> 8.3.3：用存储过程Sp_rename 更改索引名称</p>
<p> 例8-5 更改orders 表中的索引orders_quan 名称为orders_quantity。</p>
<p> exec sp_rename 'orders.[orders_quan]', 'orders_quantity', 'index'</p>
<p> 运行结果如下：</p>
<p> ------------------------------------------------------------------------------------------------------------------------</p>
<p> Caution: Changing any part of an object name could break scripts and stored procedures.</p>
<p> The index was renamed to 'orders_quantity'.</p>
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<p>上一篇：<a href='/data/SQLServer/jc/200712/6344.htm'>MS SQL基础教程:创建索引</a> 下一篇：<a href='/data/SQLServer/jc/200712/6346.htm'>MS SQL基础教程:删除索引</a> </p></td>
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