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

change to case sensitive collation, eg.

CHARACTER SET latin1 COLLATE latin1_general_cs

then try this query,

SELECT 'z' REGEXP '^[A-Z]+$'

• SQLFiddle Demo