SQL>
SQL> create table myTable (x primary key) organization index as select 1 from dual;
Table created.
SQL>
SQL> create or replace procedure explicit is
2 cursor explicit_cur is select 1 from myTable;
3 dummy number;
4 begin
5 for i in 1 .. 500 loop
6 open explicit_cur;
7 fetch explicit_cur
8 into dummy;
9 close explicit_cur;
10 end loop;
11 end;
12 /
Procedure created.
SQL>
SQL> drop table myTable;
Table dropped.