oracle 存储过程 交集

create or replace procedure TestJiaoJi
  is
   type nt_table_type is table of number;
   nt1 nt_table_type:=nt_table_type(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);
   nt2 nt_table_type:=nt_table_type(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);
   result nt_table_type;
       iTotalNum integer:=0;--记录交集个数,不包括0
  begin
    for n in 1..5
      loop
        nt1(n) :=n;
        nt2(n) :=n+2;       
      end loop;
    result:=nt1 multiset intersect nt2;--求交集
    dbms_output.put_line('交集是:');
    for i in 1..result.count
      loop
        if(result(i)!=0) then
          iTotalNum:=iTotalNum+1;
          dbms_output.put_line(''||result(i));
        end if;
      end loop;
    if result.count>0 then
      dbms_output.put_line('包括0在内的元素个数为:'||result.count);
    end if;
    if iTotalNum>0 then
      dbms_output.put_line('不包括0在内的元素个数为:'||iTotalNum);
    end if;
      --dbms_output.new_line;
  end TestJiaoJi;