Error in import database about online-exam-system

[Deepaksahu4334]

replace your perticular code with this

CREATE FUNCTION checkAnswer(resID INT, qID INT) RETURNS tinyint(1)
BEGIN
DECLARE RES INT;

IF ((SELECT type FROM question WHERE id = qID) = 0 OR (SELECT type FROM question WHERE id = qID) = 3) THEN
    SELECT COUNT(*) INTO RES
    FROM (
        SELECT answerID
        FROM result_answers ra
        WHERE resultID = resID AND questionID = qID
        AND answerID IN (SELECT id FROM question_answers WHERE isCorrect = 1 AND questionID = ra.questionID)
    ) AS t
    HAVING COUNT(*) = (SELECT COUNT(*) FROM question_answers WHERE questionID = qID AND isCorrect = 1);
    
    IF RES > 0 THEN
        RETURN TRUE;
    ELSE
        RETURN FALSE;
    END IF;
    
ELSEIF ((SELECT type FROM question WHERE id = qID) = 2) THEN
    SELECT COUNT(*) INTO RES
    FROM result_answers RA
    WHERE resultID = resID AND questionID = qID
    AND textAnswer IN (SELECT answer FROM question_answers WHERE questionID = RA.questionID);
    
    IF RES > 0 THEN
        RETURN TRUE;
    ELSE
        RETURN FALSE;
    END IF;
    
ELSE
    RETURN FALSE; -- Handle other cases or errors if necessary
END IF;

END