oracle表空间相关SQL语句

 Oracle 数据库查看表空间的使用情况

SELECT d.tablespace_name,
       space "SUM_SPACE(MB)",
       space - NVL(free_space, 0) "USED_SPACE(MB)",
       free_space "FREE_SPACE(MB)",
       ROUND((1 - NVL(free_space, 0) / space) * 100, 2) "USED_RATE(%)",
       ROUND(NVL(free_space, 0) * 100 / space, 2) "FREE_RATE(%)"
  FROM (SELECT tablespace_name, ROUND(SUM(bytes) / (1024 * 1024), 2) space
          FROM dba_data_files
         GROUP BY tablespace_name) d,
       (SELECT tablespace_name,
               ROUND(SUM(bytes) / (1024 * 1024), 2) free_space
          FROM dba_free_space
         GROUP BY tablespace_name) f
WHERE d.tablespace_name = f.tablespace_name(+)
ORDER BY "USED_RATE(%)" DESC;

查看表空间的数据文件

 select t1.name, t2.name 
   from v$tablespace t1, v$datafile t2 
   where t1.ts# = t2.ts# and t1.name = 'tablespace_Name'

查看表空间的详细情况

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 

查看表空间是否可扩展   

select file_name,autoextensible,increment_by from dba_data_files;

查看表空间的创建语句

 SELECT tablespace_name, DBMS_METADATA.GET_DDL('TABLESPACE', TS.tablespace_name)
FROM DBA_TABLESPACES TS;

查看存储过程方法等的创建语句

select * from dba_source