IMPORTANT: Remember to check the index for UNUSABLE status after LOB movement

--move LOB only
alter table scott.blobs move lob (doc) store as <optional new LOB name> (tablespace tbname);
--move table and LOB
alter table scott.blobs move tablespace tbname lob (doc) store as (tablespace tbname);

alter table scott.blobs modify lob (doc) store as (tablespace tbname);
alter table scott.blobs modify lob (doc) (storage (maxextents unlimited));
alter table scott.blobs modify lob (doc) (storage (freelists 5));
alter table scott.blobs modify lob (doc) (allocate extent);

--if partitions are involved (query dba_lob_partitions instead of dba_lobs first)
alter table AUDIT_OWNER.AUDIT_DATA move partition P201610 lob (SQLBIND) store as (tablespace audit_data_reorg0);

References:
How To Move A LOB Index To Another Tablespace ? (Doc ID 871203.1)
How To Move Or Rebuild A Lob Partition (Doc ID 761388.1)

--The following statement can be used to alter the default tablespace for a LOB (Note 114915.1):
alter table <schema.table> modify default attributes lob (<lob>) (tablespace <tablespace>);




--Can't shrink datafile. Find what is at the end of it.
create table yong_dbaextents as select * from dba_extents where tablespace_name = 'AUDIT_DATA';
col segment_name for a30
select owner, segment_type, segment_name, partition_name, bytes, file_id, block_id
from yong_dbaextents
where file_id = 5 and block_id > 1000000
order by block_id;