Syntax
LOWER(str)
Purpose
Converts uppercase letters to lowercase letters in a string.
The LOWER() function is a synonym for LCASE().
Examples
obclient> SELECT LOWER('OBCLIENTHello!');
+-----------------------------+
| LOWER('OBCLIENTHello!') |
+-----------------------------+
| Hello obclient! |
+-----------------------------+
1 row in set