The complete syntax of the create index command is:
create [unique] [clustered | nonclustered] index index_name on [[database.]owner.] table_name (column_name [, column_name]...) [with {{fillfactor | max_rows_per_page} = x, ignore_dup_key, sorted_data, [ignore_dup_row | allow_dup_row]}] [on segment_name] [with consumers = x]
The following sections explain the various options to this command.
The on segment _name extension to create index allows you to place your index on a segment that points to a specific database device or a collection of database devices. Before creating an index on a segment, see a System Administrator or the Database Owner for a list of segments that you can use. Certain segments may already be allocated to specific tables or indexes for performance reasons or for other considerations.