LOWER
Returns the string str with all characters changed to lowercase.
Syntax​
LOWER(str);
Arguments​
| Arguments | Description | 
|---|---|
| str | The string to be lowercase | 
Return Type​
A string data type value.
Examples​
SELECT LOWER('Hello, World!')
+------------------------+
| lower('Hello, World!') |
+------------------------+
| hello, world!          |
+------------------------+