MySQL数据库字段类型用于搜索查询?
以下是语法-
select *from yourTableName where REGEXP_INSTR(yourColumnName,yourSearchValue);
要了解上述语法,让我们首先创建一个表-
mysql> create table demo64−> (
−> id int not null auto_increment primary key,
−> name varchar(40)
−> );
借助insert命令将一些记录插入表中-
mysql> insert into demo64(name) values('John Smith');mysql> insert into demo64(name) values('John Doe');
mysql> insert into demo64(name) values('Chris Brown');
mysql> insert into demo64(name) values('David Miller');
mysql> insert into demo64(name) values('Carol Taylor');
使用select语句显示表中的记录-
mysql> select *from demo64;
这将产生以下输出-
+----+--------------+| id | name |
+----+--------------+
| 1 | John Smith |
| 2 | John Doe |
| 3 | Chris Brown |
| 4 | David Miller |
| 5 | Carol Taylor |
+----+--------------+
5 rows in set (0.00 sec)
以下是字段类型搜索查询的查询-
mysql> select *from demo64 where REGEXP_INSTR(name,'John');
这将产生以下输出-
+----+------------+| id | name |
+----+------------+
| 1 | John Smith |
| 2 | John Doe |
+----+------------+
2 rows in set (0.00 sec)
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