UPPER function - Amazon Redshift

UPPER function

Converts a string to uppercase. UPPER supports UTF-8 multibyte characters, up to a maximum of four bytes per character.





The input parameter is a VARCHAR string (or any other data type, such as CHAR, that can be implicitly converted to VARCHAR).

Return type

The UPPER function returns a character string that is the same data type as the input string.


The following example converts the CATNAME field to uppercase:

select catname, upper(catname) from category order by 1,2; catname | upper ----------+----------- Classical | CLASSICAL Jazz | JAZZ MLB | MLB MLS | MLS Musicals | MUSICALS NBA | NBA NFL | NFL NHL | NHL Opera | OPERA Plays | PLAYS Pop | POP (11 rows)