MySQL全文查询的方法并不难,下面就为您详细介绍MySQL全文查询的实现方法,希望对您学习MySQL全文查询方面能够有所帮助。
到3.23.23时,MySQL开始支持全文索引和搜索。全文索引在MySQL中是一个FULLTEXT类型索引。FULLTEXT索引用于 MyISAM 表,可以在CREATE TABLE时或之后使用ALTER TABLE或 CREATE INDEX 在 CHAR、VARCHAR 或 TEXT 列上创建。对于大的数据库,将数据装载到一个没有FULLTEXT索引的表中,然后再使用 ALTER TABLE (或 CREATE INDEX) 创建索引,这将是非常快的。将数据装载到一个已经有FULLTEXT索引的表中,将是非常慢的。
全文搜索通过 MATCH() 函数完成。
mysql> CREATE TABLE articles ( -> id INT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY, -> title VARCHAR(200), -> body TEXT, ->FULLTEXT(title,body) -> ); Query OK, 0 rows affected (0.00 sec) mysql> INSERT INTO articles VALUES -> (NULL,'MySQLTutorial', 'DBMS stands for DataBase ...'), -> (NULL,'How To UseMySQLEfficiently', 'After you went through a ...'), -> (NULL,'OptimisingMySQL','In this tutorial we will show ...'), -> (NULL,'1001MySQLTricks','1. Never runMySQLd as root. 2. ...'), -> (NULL,'MySQLvs. YourSQL', 'In the following database comparison ...'), -> (NULL,'MySQLSecurity', 'When configured properly,MySQL...'); Query OK, 6 rows affected (0.00 sec) Records: 6 Duplicates: 0 Warnings: 0 mysql> SELECT * FROM articles -> WHERE MATCH (title,body) AGAINST ('database'); +----+-------------------+------------------------------------------+ | id | title | body | +----+-------------------+------------------------------------------+ | 5 |MySQLvs. YourSQL | In the following database comparison ... | | 1 |MySQLTutorial | DBMS stands for DataBase ... | +----+-------------------+------------------------------------------+ 2 rows in set