How to check for uppercase letters in MySQL?

Question

I want to check, if a string consits only of uppercase letters. I know that RLIKE/REGEXP are not case sensitive in MySQL. So I tried to use the :upper: characte

Answer 1

For me this works and is not using a regexp. It basically compares the field with itself uppercased by mysql itself.

-- will detect all names that are not in uppercase
SELECT 
    name, UPPER(name) 
FROM table 
WHERE 
    BINARY name <> BINARY UPPER(name)
;