MySQL正则_MySQL
1、或
select * from product where name regexp 'hello|world' 或
select * from user where name regexp '[123] tom' 匹配任意一个
其中[123]相当于 1|2|3
select * from user where name regexp '1|2|3 tom'
2、排除
select * from user where name regexp '[^123] tom'
3、范围匹配
select * from user where name regexp '[1-3] tom'
4、转义特殊字符
select * from user where name regexp 'linda//.cai'
5、重复元字符
* 0个或多个 + 一个或多个 ?0个或一个
{n}匹配n次 {n,}匹配至少n次 {n,m}匹配次数在n-m之间
select * from product where name regexp '//([0-9] sticks?//)'
select * from product where name regexp '[:digit:]{4}'
6、字符类
[:alnum:] 任意字母和数字
[:alpha:] 任意字符
[:blank:] 空格和制表
[:digit:] 任意正整数
[:lower:] 任意小写字母
[:upper:] 任意大写字母
[:space:] 任意空白字符(包括空格)
7、定位符
^ 文本的开头
$ 文本的结尾
[[:<:>
[[:>:]] 词的末尾

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