select
a.tablespace_name,
a.file_id,
a.block_id,
a.blocks,
b.block_id
from dba_free_space a, dba_free_space b
where
a.tablespace_name=b.tablespace_name and
a.file_id=b.file_id and
a.block_id + a.blocks= b.block_id and
A.tablespace_name != 'TEMP' and
b.tablespace_name != 'TEMP';
SELECT
TABLESPACE_NAME,
INITIAL_EXTENT,
NEXT_EXTENT,
PCT_INCREASE
FROM
DBA_TABLESPACES
WHERE
TABLESPACE_NAME='USERS'