SQL> create table bla (id number, code number, date_created date, name varchar2(42));

Table created.

SQL>
SQL> insert into bla
  2  select
  3  rownum, mod(rownum,10), sysdate - mod(rownum,500), 'BLA'
  4  from dual
  5  connect by level <= 2000;

2000 rows created.

SQL>
SQL> commit;

Commit complete.

SQL>
SQL>
SQL> create index bla_code_idx on bla(code);

Index created.

SQL>
SQL> create unique index bla_id_idx on bla(id);

Index created.

SQL>
SQL> alter table bla
  2  modify partition by range (date_created)
  3  (partition p1 values less than (date '2016-01-01') tablespace test,
  4   partition p2 values less than (date '2017-01-01'),
  5   partition p3 values less than (maxvalue)) online
  6  update indexes
  7  (
  8    bla_code_idx LOCAL
  9    (
 10      partition p1 tablespace test,
 11      partition p2 tablespace users,
 12      partition p3 tablespace test
 13    ),
 14    bla_id_idx global partition by range (id)
 15    (
 16      partition id01 values less than (maxvalue) tablespace test
 17    )
 18  )
 19  ;

Table altered.