UPPER
Sintassi
UPPER(str)
Spiegazione
Restituisce la stringa str dopo aver convertito tutte le lettere minuscole in maiuscole, basandosi sulla mappatura del set di caratteri in uso. Quello predefinito è latin1 (cp1252 West European).
MariaDB [test]> SELECT UPPER(surname), givenname FROM users ORDER BY surname; +----------------+------------+ | UPPER(surname) | givenname | +----------------+------------+ | ABEL | Jacinto | | CASTRO | Robert | | COSTA | Phestos | | MOSCHELLA | Hippolytos | +----------------+------------+
UPPER() non fa nulla se viene usato su stringhe binarie (BINARY,
VARBINARY o BLOB). La spiegazione di LOWER() mostra come convertire le stringhe binarie.
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