Cannot drop or resıze datafile

Question

Hi
My tablespace has 6 datafiles, and I moved every object to other segments.
However there are still objects, in this tablespace and I cannot make the datafile smaller or drop the datafile because of these objects.
What should I do?
select
owner,
file_id,
block_id end_block,
round(block_id * &m_block_size/1048576) possible_hwm,
segment_type,
segment_name,
partition_name
from
dba_extents
where
tablespace_name = 'DATA_AR'
order by
file_id, block_id
file_id end_block hwm segment_type segment_name
16,1889,15,LOBSEGMENT,SYS_LOB0000069294C00046$$,
16,1897,15,LOBINDEX,SYS_IL0000069294C00046$$,
16,1937,15,LOBSEGMENT,SYS_LOB0000069299C00002$$,
16,1945,15,LOBSEGMENT,SYS_LOB0000069299C00002$$,
16,1953,15,LOBINDEX,SYS_IL0000069299C00002$$,
16,2605825,20,358,LOBSEGMENT,SYS_LOB0000071665C00003$$,
16,2605833,20,358,LOBSEGMENT,SYS_LOB0000071665C00003$$,
16,2605841,20,358,LOBINDEX,SYS_IL0000071665C00003$$,
16,2619665,20,466,TABLE,PLAN_TABLE,
16,2619673,20,466,TABLE,PLAN_TABLE,
16,2619769,20,467,LOBSEGMENT,SYS_LOB0000071702C00014$$,
16,2619777,20,467,LOBINDEX,SYS_IL0000071702C00014$$,
16,2619881,20,468,TABLE,SQLN_EXPLAIN_PLAN,
16,2619889,20,468,TABLE,SQLN_EXPLAIN_PLAN,One thing I also didnt understand that all objects are in file_id 16 but I cannot drop other datafiles or resize other datafiles in this tablespace
since they are empty!!

Answer 1

You also may want to read the following Metalink note :
How to move LOB Data to Another Tablespace Doc ID: Note:130814.1
Or the LOB parameter of the ALTER TABLE statement.
Nicolas.