Fun fact: Nowadays people are doing the same with SQL - even though there is absolutely no reason to do so.
select * from mytable
is as good as: SELECT * FROM MYTABLE
Nowadays, upper case SQL seems to be a sign that the code is either 1) auto-generated by an ORM, or 2) written by a novice, or 3) written by a project with very strange coding styles (the last two seems to be some kind of cargo culting).