MySql的like语句中的通配符：百分号、下划线和escape

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MySql的like语句中的通配符：百分号、下划线和escape

%代表任意多个字符

Sql代码

select * from user where username like '%huxiao';

select * from user where username like 'huxiao%';

select * from user where username like '%huxiao%';

_代表一个字符

Sql代码

select * from user where username like '_';

select * from user where username like 'huxia_';

select * from user where username like 'h_xiao';

如果我就真的要查%或者_，怎么办呢？使用escape，转义字符后面的%或_就不作为通配符了，注意前面没有转义字符的%和_仍然起通配符作用

Sql代码

select username from gg_user where username like '%xiao/_%' escape '/';



select username from gg_user where username like '%xiao/%%' escape '/';