LOWER() FUNCTION
The MySQL LOWER function is used to convert all characters in the specified string to lowercase. The various versions of MySQL support the LOWER function, namely, MySQL 5.7, MySQL 5.6, MySQL 5.5, MySQL 5.1, MySQL 5.0, MySQL 4.1, MySQL 4.0 and MySQL 3.23.
Syntax:
LOWER( string )
Parameters:
string: It is used to specify the string to modify.
Example:
mysql> SELECT LOWER ( 'HELLO WORLD 123' );
Output:
‘hello world 123’
Explanation:
All the letters are converted to lowercase.