35275.htm

一本很基础的SQL讲解

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        <td height="24" align="center" valign="bottom" class="d_font3">实例演示在SQL数据库中启用全文检索</td>
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        <td class="d_font4"><P>这是一个全文索引的一个例子，首先在查询分析器中使用： 
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<TD class=code bgColor=#e6e6e6><PRE>e pubs
　go</PRE></TD></TR></TBODY></TABLE>
<P>打开数据库全文索引的支持 
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<TD class=code bgColor=#e6e6e6><PRE>ute sp_fulltext_database 'enable'
　go</PRE></TD></TR></TBODY></TABLE>
<P>建立全文目录ft_titles 
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<TD class=code bgColor=#e6e6e6><PRE>ute sp_fulltext_catalog 'ft_titles', 'create'
　　go</PRE></TD></TR></TBODY></TABLE>
<P>为titles表建立全文索引数据元，UPKCL_titleidind是主键所建立的唯一索引，可由sp_help titles得知 
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<TD class=code bgColor=#e6e6e6><PRE>cute sp_fulltext_table 'titles','create', 'ft_titles', 'UPKCL_titleidind'
　　go</PRE></TD></TR></TBODY></TABLE>
<P>设置全文索引列名 
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<TD class=code bgColor=#e6e6e6><PRE>　exec sp_fulltext_column 'titles', 'title', 'add'
　　go
　　exec sp_fulltext_column 'titles', 'notes', 'add'
　　go</PRE></TD></TR></TBODY></TABLE>
<P>建立全文索引 
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<TD class=code bgColor=#e6e6e6><PRE>　exec sp_fulltext_table 'titles', 'activate'
　　go</PRE></TD></TR></TBODY></TABLE>
<P>填充全文索引目录 
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<TD class=code bgColor=#e6e6e6><PRE>　　exec sp_fulltext_catalog 'ft_titles', 'start_full'
　　go</PRE></TD></TR></TBODY></TABLE>
<P>使用contains和freetext 
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<TD class=code bgColor=#e6e6e6><PRE>　　select title, notes from titles
　　where contains(title, '"computer Cooking"')
　　go
　　select title, notes from titles
　　where freetext(title, 'computer Cooking')
　　go
　　select title, notes from titles
　　where freetext(title, '"computer Cooking"')
　　go
　　select title, notes from titles
　　where contains(title, 'computer')
　　go
　　select title, notes from titles
　　where freetext (*, 'computer')
　　go</PRE></TD></TR></TBODY></TABLE>
<P>(责任编辑：铭铭 <A href="mailto: [e-mail]">[e-mail]</A> TEL：[phone])</P></td>
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