mysql游标循环中使用if

DELIMITER //

CREATE PROCEDURE process_data()
BEGIN
    DECLARE done INT DEFAULT FALSE;
    DECLARE v_id INT;
    DECLARE v_name VARCHAR(255);
    DECLARE cur CURSOR FOR SELECT id, name FROM users;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

    OPEN cur;

    read_loop: LOOP
        FETCH cur INTO v_id, v_name;
        IF done THEN
            LEAVE read_loop;
        END IF;

        IF v_name LIKE 'A%' THEN
            -- 执行特定操作，例如更新数据
            UPDATE users SET status = 'active' WHERE id = v_id;
        ELSE
            -- 执行其他操作
            UPDATE users SET status = 'inactive' WHERE id = v_id;
        END IF;
    END LOOP;

    CLOSE cur;
END //

DELIMITER ;

CALL process_data();