oracle函数返回table类型结果集

--创建自定义对象类型
CREATE OR REPLACE TYPE RetireOrderTemp AS OBJECT(A varchar2(200), B varchar2(200), C varchar2(200),D varchar2(200),E int, F int);
--创建自定义table表类型
CREATE OR REPLACE TYPE RetireOrderTempResult IS TABLE OF RetireOrderTemp;
/

create or replace function F_GD_XT_RETIRE_ORDER(sdate in varchar2,edate in  varchar2) return RetireOrderTempResult
is
return_Result  RetireOrderTempResult := RetireOrderTempResult();
begin
for order_info in (
select语句

) loop
return_Result.EXTEND;
return_Result(return_Result.COUNT) := RetireOrderTemp(A   => order_info.a1, B=>order_info.a2, C=>order_info.a3,D   => order_info.a4, E=>order_info.a5, F=>order_info.a6);
end loop;
return return_Result;
end;
/