查詢數據庫表空間

select df.tablespace_name,
       round(df.total_space / 1048576, 0) "Total Space(MB)",
       round((df.total_space - nvl(fs.free_space, 0)) / 1048576, 0) "Used Space(MB)",
       round(nvl(fs.free_space, 0) / 1048576, 0) "Free Space(MB)",
       round(100 * (1 - nvl(fs.free_space, 0) / df.total_space), 2) "%Used",
       to_char(Sysdate, 'yyyy-mm-dd hh24:mi') Stat_Time
  from (select tablespace_name, sum(bytes) total_space
          from dba_data_files
         group by tablespace_name) df,
       (select b.tablespace_name, sum(b.bytes) free_space
          from dba_free_space b
         group by b.tablespace_name) fs
 where df.tablespace_name = fs.tablespace_name(+)
   and exists (select *
          from dba_tablespaces ts
         where ts.contents <> 'TEMPORARY'
           and ts.tablespace_name = df.tablespace_name)
union
select df.tablespace_name,
       round(df.total_space / 1048576, 0) "Total Space(MB)",
       round(nvl(us.used_space, 0) / 1048576, 0) "Used Space(MB)",
       round((df.total_space - nvl(us.used_space, 0)) / 1048576, 0) "Free Space(MB)",
       round(100 * (nvl(us.used_space, 0) / df.total_space), 2) "%Used",
       to_char(Sysdate, 'yyyy-mm-dd hh24:mi') Stat_Time
  from (select tablespace_name, sum(bytes) total_space
          from dba_temp_files
         group by tablespace_name) df,
       (select b.tablespace_name, sum(b.bytes_cached) used_space
          from v$temp_extent_pool b
         group by b.tablespace_name) us
 where df.tablespace_name = us.tablespace_name(+)
   and exists (select *
          from dba_tablespaces ts
         where ts.contents = 'TEMPORARY'
           and ts.tablespace_name = df.tablespace_name)
 order by 5 desc;
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