UPPER(str): To uppercase according to the current character set mapping : UPPER « String Functions « MySQL Tutorial

1. MySQL Tutorial
2. String Functions
3. UPPER

UCASE() is a synonym for UPPER().

mysql> SELECT UPPER('abc');
+--------------+
| UPPER('abc') |
+--------------+
| ABC          |
+--------------+
1 row in set (0.00 sec)

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