Oracle中table数据数据类型

function F_ReturnDescription(varID in varchar2) return varchar2 is
  
    numDataCount number(12);
    mytable      ly_familyproperty%rowtype;
  begin
  
    select count(1)
      into numDataCount
      from ly_familyproperty t
     where t.id = varID;
    if numDataCount = 0 then
      return '';
    end if;
    select * into mytable from ly_familyproperty where id = varID;
    /*
    1：公积金；2：社保；3：企业所得税缴纳情况；4：工商登记情况；5：个人所得税缴纳情况；
    6：非居住类房屋情况；7：机动车辆登记情况；8：其他财产
    */
    if mytable.propertype = '1' then
      return '月缴存额：' || mytable.MONEY || '元';
    elsif mytable.propertype = '2' then
      return '月缴存额：' || mytable.MONEY || '元';
    elsif mytable.propertype = '3' then
      return '月缴纳基数：' || mytable.MONEY || '元';
    elsif mytable.propertype = '4' then
      return '工商主体名称：' || mytable.BUSINESS_TITLE || ';' || '登记时间：' || to_char(mytable.CHECK_TIME,
                                                                              'yyyy-mm-dd') || ';' || '出资额：' || mytable.MONEY || '万元';
    elsif mytable.propertype = '5' then
      return '月缴纳基数：' || mytable.MONEY || '元';
    elsif mytable.propertype = '6' then
      return '房屋地址:' || mytable.ADDRESS || '；建筑面积：' || mytable.BUILDAREA || '；发证时间：' || to_char(mytable.CHECK_TIME,
                                                                                                'yyyy-mm-dd') || '；产权证号：' || mytable.PRONUM;
    elsif mytable.propertype = '7' then
      return '品牌：' || mytable.brand || '；排量：' || mytable.EXHAUST_VOLUME || '；车辆使用性质：' || mytable.USE_NATURE || '；登记时间：' || to_char(mytable.CHECK_TIME,
                                                                                                                                   'yyyy-mm-dd');
    elsif mytable.propertype = '8' then
      return mytable.business_title;
    else
      return '';
    end if;
  
  end F_ReturnDescription;