定義：

?type t_numberstab is table of number;

舉例：

create or replace function getbldroomidforcert(p_certid number,p_sequence number) return varchar2
is
?type t_numberstab is table of number;
?v_bldroomids t_numberstab:=t_numberstab();
?v_cnt????????? number:=1;
begin
?for brrs in (select bldroomid,(select buildno from building where buildid=bldroom.buildid) buildno,getbrfloors(bldroomid) flooron,getbldroompart(bldroomid) part from bldroom where bldroomid in (select bldroomid from rightcertroom where certid=p_certid and exists (select 1 from rightcert where certid=p_certid and activeid=createactiveid)) order by buildno,flooron,part)
?loop
??v_bldroomids.extend;
??v_bldroomids(v_cnt):=brrs.bldroomid;
??v_cnt:=v_cnt+1;
?end loop;
?if v_bldroomids.exists(p_sequence) then
??return v_bldroomids(p_sequence);
?else
??return -1;
?end if;
end getbldroomidforcert;
/
show err;

oracle pl/sql 函數中鏈表的使用