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Mysql 全文本检索

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Release: 2016-06-07 15:19:33
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mysql 全文索引 注意 并非所有的引擎都支持 全文检索 mysql最常用的引擎 INnodb 和 myisam 后者支持全文检索 前者不支持 创建表的时候指定要检索列 CREATE TABLE TEST_FULLTEXT(note_id int not null auto_increment,note_text text null ,primaty key (note_

mysql 全文索引

注意 并非所有的引擎都支持 全文检索

mysql最常用的引擎 INnodb 和 myisam 后者支持全文检索 前者不支持

创建表的时候指定要检索列

<code><span><span>CREATE</span> <span>TABLE</span> TEST_FULLTEXT(note_id <span>int</span> <span>not</span> <span>null</span> auto_increment,note_text text <span>null</span>,
primaty <span>key</span>(note_id),FULLTEXT(note_text)
)engine=myisam;</span>
</code>
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fulltext 索引某个列 fulltext(note_text) ,在某note_text列上建立全文索引

插入数据

然后用 match()指定列 Against()指定词
如 语句

<code><span><span>select</span> *
<span>from</span> TEST_FULLTEXT
<span>where</span> <span>Match</span>(note_text) Against(<span>'hello'</span>);</span>
</code>
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查找note_txt列中含有 hello词的行 返回的结果为 两行

<code>note_text
'hello' was said by quester 
quster say 'hello' to pp and he try again
</code>
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