Get Camel Case of a String in MySQL

camel_case.sql

DELIMITER $$

CREATE FUNCTION `camel_case`(str VARCHAR(128)) RETURNS VARCHAR(128)
BEGIN
    DECLARE n, pos INT DEFAULT 1;
    DECLARE sub, camel VARCHAR(128) DEFAULT '';
    DECLARE isFirstWord BOOLEAN DEFAULT TRUE;

    IF LENGTH(TRIM(str)) > 0 THEN
        WHILE pos > 0 DO
            SET pos = LOCATE(' ', TRIM(str), n);

            IF pos = 0 THEN
                SET sub = LOWER(TRIM(SUBSTR(TRIM(str), n)));
            ELSE
                SET sub = LOWER(TRIM(SUBSTR(TRIM(str), n, pos - n)));
            END IF;

            IF isFirstWord THEN
                SET camel = CONCAT(camel, sub);
                SET isFirstWord = FALSE;
            ELSE
                SET camel = CONCAT(camel, UPPER(LEFT(sub, 1)), SUBSTR(sub, 2));
            END IF;

            SET n = pos + 1;
        END WHILE;
    END IF;

    RETURN camel;
END $$

DELIMITER ;

thanks!!!!

doesn't work, looks like you're confused between camel_case and proper_case.

return concat(lower(left(proper,1)),substr(proper,2)); instead of proper will do the trick.