MySQL Capitalize

DELIMITER $$
CREATE FUNCTION CAP_FIRST (input VARCHAR(255))
 
RETURNS VARCHAR(255)
 
DETERMINISTIC
 
BEGIN
     DECLARE len INT;
     DECLARE i INT;
 
     SET len   = CHAR_LENGTH(input);
     SET input = LOWER(input);
     SET i = 0;
 
     WHILE (i < len) DO
          IF (MID(input,i,1) = ' ' OR i = 0) THEN
               IF (i < len) THEN
                    SET input = CONCAT(
                         LEFT(input,i),
                         UPPER(MID(input,i + 1,1)),
                         RIGHT(input,len - i - 1)
                    );
               END IF;
          END IF;
          SET i = i + 1;
     END WHILE;
 
     RETURN input;
END$$
 
DELIMITER ;

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