plsql函数返回数组集合例子

 1 create or replace type t_test as object(
 2 id integer,
 3 rq date,
 4 mc varchar2(60)
 5 );
 6 
 7 create or replace type t_test_table as table of t_test;
 8 
 9 create or replace function f_test_array(n in number default null) return t_test_table
10 as 
11 v_test t_test_table := t_test_table();
12 begin
13 for i in 1 .. nvl(n,100) loop
14 v_test.extend();
15 v_test(v_test.count) := t_test(i,sysdate,'mc'||i);
16 end loop;
17 return v_test;
18 end f_test_array;
19 
20 
21 select * from table(f_test_array(10));

除了写代码还会干什么