Mysql基础第十二天,用正则表达式进行搜索

Posted 2021-07-06 2019ab

基本字符匹配

 select pro_name from products where prod_name regexp 'ee'; // 基本字符匹配
 select pro_name from products where prod_name regexp '.00'; // 含有00,前面有一个任意字符

进行Or匹配

	select prod_name from products where prod_name regexp '1000|2000|a'; // or匹配

匹配几个字符之一

select prod_name from products where prod_name regexp '[123]'; // []匹配

匹配范围

select prod_name from products where prod_name regexp '[1-9]'; // 匹配范围

匹配特殊字符

select vend_name vends where vend_name regxp '\\\\.';  // \\\\转义字符
select vend_name vends where vend_name regxp '\\\\[';  // \\\\转义字符
select vend_name vends where vend_name regxp '[[:lower:]]';  // 使用预定义的字符集

	select vend_address from vendors where vend_address regxp '[[:gigit:]]{3,}';  // 重复元字符

	select prod_name from products where prod_name regexp '^[0-9\\\\.]';