This was going to the be the immediate follow up to my previous post, but 22.214.171.124 came out and I got all excited about that and forgot to post this one
Anyway, the previous post showed how easy it is to convert between nested tables and associative arrays. The nice thing in 12c is that this is no longer needed – you can query the associative arrays directly
SQL> create or replace package PKG as 2 3 type num_list is table of number index by pls_integer; 4 5 end; 6 / Package created. SQL> SQL> declare 2 v pkg.num_list; 3 begin 4 v(1) := 10; 5 v(2) := 20; 6 7 for i in ( select * from table(v) ) loop 8 dbms_output.put_line(i.column_value); 9 end loop; 10 end; 11 / 10 20 PL/SQL procedure successfully completed.