以下脚本用于列出Oracle中数据文件的状况: 

REM Datafile Report

set linesize 120 pagesize 1400;

SELECT t.tablespace_name,
       'Datafile' file_type,
       t.status tablespace_status,
       d.status file_status,
       ROUND((d.bytes - NVL(f.sum_bytes, 0)) / 1048576) used_mb,
       ROUND(NVL(f.sum_bytes, 0) / 1048576) free_mb,
       t.initial_extent,
       t.next_extent,
       t.min_extents,
       t.max_extents,
       t.pct_increase,
       d.file_name,
       d.file_id,
       d.autoextensible,
       d.maxblocks,
       d.maxbytes,
       nvl(d.increment_by, 0) increment_by,
       t.block_size
  FROM (SELECT tablespace_name, file_id, SUM(bytes) sum_bytes
          FROM DBA_FREE_SPACE
         GROUP BY tablespace_name, file_id) f,
       DBA_DATA_FILES d,
       DBA_TABLESPACES t
 WHERE t.tablespace_name = d.tablespace_name
   AND f.tablespace_name(+) = d.tablespace_name
   AND f.file_id(+) = d.file_id
 GROUP BY t.tablespace_name,
          d.file_name,
          d.file_id,
          t.initial_extent,
          t.next_extent,
          t.min_extents,
          t.max_extents,
          t.pct_increase,
          t.status,
          d.bytes,
          f.sum_bytes,
          d.status,
          d.AutoExtensible,
          d.maxblocks,
          d.maxbytes,
          d.increment_by,
          t.block_size
UNION ALL
SELECT h.tablespace_name,
       'Tempfile',
       ts.status,
       t.status,
       ROUND(SUM(NVL(p.bytes_used, 0)) / 1048576),
       ROUND(SUM((h.bytes_free + h.bytes_used) - NVL(p.bytes_used, 0)) /
             1048576),
       -1, -- initial extent
       -1, -- initial extent
       -1, -- min extents
       -1, -- max extents
       -1, -- pct increase
       t.file_name,
       t.file_id,
       t.autoextensible,
       t.maxblocks,
       t.maxbytes,
       nvl(t.increment_by, 0) increment_by,
       ts.block_size
  FROM sys.V_$TEMP_SPACE_HEADER h,
       sys.V_$TEMP_EXTENT_POOL  p,
       sys.DBA_TEMP_FILES       t,
       sys.dba_tablespaces      ts
 WHERE p.file_id(+) = h.file_id
   AND p.tablespace_name(+) = h.tablespace_name
   AND h.file_id = t.file_id
   AND h.tablespace_name = t.tablespace_name
   and ts.tablespace_name = h.tablespace_name
 GROUP BY h.tablespace_name,
          t.status,
          t.file_name,
          t.file_id,
          ts.status,
          t.autoextensible,
          t.maxblocks,
          t.maxbytes,
          t.increment_by,
          ts.block_size
 ORDER BY 1, 5 DESC
/