SQL> create table tbl(
  2                   sysid char(4),
  3                   year char(4),
  4                   doc_id char(10)
  5                  )
  6    partition by range(doc_id)
  7    (
  8     partition p1000 values less than(1000),
  9     partition p2000 values less than(2000),
 10     partition pmaxc values less than(maxvalue)
 11    )
 12  /

Table created.

SQL> create index tbl_idx1
  2    on tbl(
  3           sysid,
  4           year,
  5           doc_id
  6           )
  7    global partition by range(doc_id)
  8    (
  9     partition p1000 values less than(1000),
 10     partition p2000 values less than(2000),
 11     partition pmaxc values less than(maxvalue)
 12    )
 13  /
  global partition by range(doc_id)
                                  *
ERROR at line 7:
ORA-14038: GLOBAL partitioned index must be prefixed


SQL> create index tbl_idx1
  2    on tbl(
  3           doc_id,
  4           year,
  5           sysid
  6           )
  7    global partition by range(doc_id)
  8    (
  9     partition p1000 values less than(1000),
 10     partition p2000 values less than(2000),
 11     partition pmaxc values less than(maxvalue)
 12    )
 13  /

Index created.

SQL>