mysqli存储过程和update语句

我在更新mysql表时遇到问题。虽然这个问题看起来有点奇怪，但我在下面解释一下。

我正在处理用户配置文件更新，其中来自单个表单的数据插入/更新到两个不同的表，但如果我更新整个表单信息，则更新数据是成功的，但如果只更新一些2或3个字段，则更新失败。我使用mysql存储过程进行sql更新，代码如下。。。

DELIMITER $$
DROP PROCEDURE IF EXISTS `usp_user_profile_save` $$
CREATE PROCEDURE `usp_user_profile_save`(IN sIntro_para VARCHAR(255), IN sBook VARCHAR(255), IN sProfileNewName VARCHAR(255),
IN iRel VARCHAR(255), IN iBdate VARCHAR(255), IN iSO INT, IN iMerital_status INT, IN iChildren INT, IN iProfession INT,
IN iIncome INT, IN iIncome_unit INT, IN iCountry INT, IN iState INT, IN iCity_or_post_code INT, IN iHeight VARCHAR(255), IN iSp INT, IN iEthnicity INT,
IN iHair_color INT, IN iHair_lenght INT, IN iEye_color INT, IN iSmoker_or_not INT, IN iUserId INT)
BEGIN
DECLARE n,n1,respCode INT;
DECLARE respMsg,dbg VARCHAR(255);
  START TRANSACTION;
  UPDATE `tbl_user` SET
    `introduction` = sIntro_para,
    `profile_picture` = sProfileNewName,
    `birthdate` = iBdate,
    `s_o` = iSO,
    `marital_status` = iMerital_status,
    `children` = iChildren,
    `profession` = iProfession,
    `income` = iIncome,
    `income_unit` = iIncome_unit,
    `my_book` = sBook,
    `r_s` = iRel,
    `counrty` = iCountry,
    `state` = iState,
    `city` = iCity_or_post_code,
    `modified` = NOW(),
    `modified_by` = iUserId
  WHERE `id` = iUserId;
  SET n = ROW_COUNT();
  IF n <= 0 THEN
    ROLLBACK;
  ELSE
    IF EXISTS (SELECT * FROM `tbl_user_physical` WHERE `tbl_user_id` = iUserId) THEN
      UPDATE `tbl_user_physical` SET
        `tbl_user_id` = iUserId,
        `height` = iHeight,
        `shape` = iSp,
        `ethnicity` = iEthnicity,
        `hair_color` = iHair_color,
        `hair_length` = iHair_lenght,
        `eye_color` = iEye_color,
        `smoker_or_non_smoker` = iSmoker_or_not
      WHERE `tbl_user_id` = iUserId;
      SET n1 = ROW_COUNT();
    ELSE
        INSERT INTO `tbl_user_physical`(`tbl_user_id`, `height`, `shape`, `ethnicity`, `hair_color`, `hair_length`, `eye_color`, `smoker_or_non_smoker`) VALUES (iUserId, iHeight, iSp, iEthnicity, iHair_color, iHair_lenght, iEye_color, iSmoker_or_not);
        SET n1 = LAST_INSERT_ID();
    END IF;
    IF n1 > 0 THEN
      COMMIT;
        SELECT 1 AS respCode, 'Registration successfull.' AS respMsg;
    ELSE
        ROLLBACK;
        SELECT 0 AS respCode,'Registration couldn''t be completed.' AS respMsg, n, n1;
    END IF;
  END IF;
END $$
DELIMITER;

虽然我已经用不同的关键词在谷歌上搜索了很多次我的问题，但我没有发现与我的问题相关的问题，我已经正确地写了更新声明，但它没有更新，因为大多数将要更新的新数据都和旧数据一样，我的学长告诉我，只有在提交并使用了一组新数据的情况下，更新才有效。。

所以，请帮我解决这个问题提前谢谢。。