较低的上部功能在字符串搜索中不起作用

Question

im new to mysql. my problem is

select ename
from emp
where ename=lower('BLAKE')

the result will give BLAKE with uppercase letter. why does the lower function not working? did i miss something? i tried collate but not working

Answer 1

Try this one:

select ename from emp where lower(ename)=lower('BLAKE') 
And if  you want to as result into lower then 

select lower(ename)as ename from emp where lower(ename)=lower('BLAKE')