MYSQL中LIKE和REGEXP的区别
我必须从电台数据库中选择所有以元音开头的城市名称 我尝试在MYSQL中使用: 类似运算符:MYSQL中LIKE和REGEXP的区别,mysql,sql,database,Mysql,Sql,Database,我必须从电台数据库中选择所有以元音开头的城市名称 我尝试在MYSQL中使用: 类似运算符: select DISTINCT CITY from STATION where CITY LIKE "[aeiouAEIOU]%"; select DISTINCT CITY from STATION where CITY REGEXP '^[AEIOUaeiou]'; REGEXP运算符: select DISTINCT CITY from STATION where CITY LIKE "[aei
select DISTINCT CITY from STATION where CITY LIKE "[aeiouAEIOU]%";
select DISTINCT CITY from STATION where CITY REGEXP '^[AEIOUaeiou]';
REGEXP运算符:
select DISTINCT CITY from STATION where CITY LIKE "[aeiouAEIOU]%";
select DISTINCT CITY from STATION where CITY REGEXP '^[AEIOUaeiou]';
当我使用带有Like运算符的查询时,它给出的结果为零。但是使用REGEXP的查询工作得很好
问题:
select DISTINCT CITY from STATION where CITY LIKE "[aeiouAEIOU]%";
select DISTINCT CITY from STATION where CITY REGEXP '^[AEIOUaeiou]';
LIKE
只支持通配符,REGEXP
完全支持正则表达式。LIKE
和REGEXP
是完全不同的东西。请参见手册中的LIKE
仅支持通配符,REGEXP
具有完全的正则表达式支持。LIKE
和REGEXP
是完全不同的东西。请参阅和上的手册