oracle存储过程 报错PLS-00103

create or replace procedure num_group is
begin
insert into caipiao(haoma) values round((select dbms_random.value(1,35) from dual),0);
loop
if (select count(*) from (select distinct haoma from caipiao)) <7

    then
      insert into caipiao(haoma) values round((select dbms_random.value(1,35) from dual),0);
      end if;
      exit when (select count(*) from (select distinct haoma from caipiao))=6;
      end loop;

end num_group;

先把查询结果赋值给变量 select count(*) into tmp from (select distinct haoma from caipiao) ，通过tmp比较