Oracle中table數據數據類型

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：公積金；2：社保；3：企業所得稅繳納情況；4：工商登記情況；5：個人所得稅繳納情況；
    6：非居住類房屋情況；7：機動車輛登記情況；8：其他財產
    */
    if mytable.propertype = '1' then
      return '月繳存額：' || mytable.MONEY || '元';
    elsif mytable.propertype = '2' then
      return '月繳存額：' || mytable.MONEY || '元';
    elsif mytable.propertype = '3' then
      return '月繳納基數：' || mytable.MONEY || '元';
    elsif mytable.propertype = '4' then
      return '工商主體名稱：' || mytable.BUSINESS_TITLE || ';' || '登記時間：' || to_char(mytable.CHECK_TIME,
                                                                              'yyyy-mm-dd') || ';' || '出資額：' || mytable.MONEY || '萬元';
    elsif mytable.propertype = '5' then
      return '月繳納基數：' || mytable.MONEY || '元';
    elsif mytable.propertype = '6' then
      return '房屋地址:' || mytable.ADDRESS || '；建築面積：' || mytable.BUILDAREA || '；發證時間：' || to_char(mytable.CHECK_TIME,
                                                                                                'yyyy-mm-dd') || '；產權證號：' || mytable.PRONUM;
    elsif mytable.propertype = '7' then
      return '品牌：' || mytable.brand || '；排量：' || mytable.EXHAUST_VOLUME || '；車輛使用性質：' || mytable.USE_NATURE || '；登記時間：' || to_char(mytable.CHECK_TIME,
                                                                                                                                   'yyyy-mm-dd');
    elsif mytable.propertype = '8' then
      return mytable.business_title;
    else
      return '';
    end if;
  
  end F_ReturnDescription;