Question

在phpmyadmin中，它可以看到数据库磁盘使用情况。我想知道Oracle SQL开发人员是否有这样的事情。谢谢！

Answer 1

select nvl(b.tablespace_name,
         nvl(a.tablespace_name,'UNKNOWN'))
         tablespace_name,
       kbytes_alloc kbytes,
       kbytes_alloc-nvl(kbytes_free,0) 
         size_alloc_bytes,
       round(((kbytes_alloc-nvl(kbytes_free,0))/
         kbytes_alloc)*200) used_chart,
       to_char(((kbytes_alloc-nvl(kbytes_free,0))/
         kbytes_alloc)*100,
         '999G999G999G999G999G999G990D00') ||'%' used,
       data_files
  from ( select sum(bytes)/1024/1024 Kbytes_free,
              max(bytes)/1024/1024 largest,
              tablespace_name
       from  sys.dba_free_space
       group by tablespace_name ) a,
     ( select sum(bytes)/1024/1024 Kbytes_alloc,
              tablespace_name, count(*) data_files
       from sys.dba_data_files
       group by tablespace_name )b
 where a.tablespace_name (+) = b.tablespace_name

Source

Answer 2

我推荐Insider extension for SQL Developer (Raptor)。

Answer 3

select sum(bytes) Bytes,
round(sum(bytes)/power(1000,1)) KiloBytes,
round(sum(bytes)/power(1000,2)) MegaBytes,
round(sum(bytes)/power(1000,3)) GigaBytes,
round(sum(bytes)/power(1000,4)) TeraBytes,
round(sum(bytes)/power(1000,5)) PetaBytes,
round(sum(bytes)/power(1000,6)) ExaBytes,
round(sum(bytes)/power(1000,7)) ZettaBytes,
round(sum(bytes)/power(1000,8)) YottaBytes
from dba_data_files;

确保您使用sysdba权限登录才能运行此脚本。

Answer 4

如果在网格控制中监视DB，则在emrep数据库中执行此查询（DB大小的历史记录）：


SELECT DECODE(m.metric_column, 'ALLOCATED_GB', 'ALLOCATED_GB', 'USED_GB', 'USED_GB') AS bb,
  m.rollup_timestamp AS rollup_timestamp,
  SUM(m.average) AS value
FROM mgmt$metric_daily m,
  mgmt$target_type t
WHERE t.target_guid=
  (SELECT target_guid FROM mgmt$target WHERE target_name='ORCL' /* Your DB name /
  )
AND (t.target_type ='rac_database'
OR (t.target_type ='oracle_database'
AND t.TYPE_QUALIFIER3 != 'RACINST'))
AND m.target_guid =t.target_guid
AND m.metric_guid =t.metric_guid
AND t.metric_name ='DATABASE_SIZE'
AND (t.metric_column ='ALLOCATED_GB'
OR t.metric_column ='USED_GB')
AND m.rollup_timestamp >= '01.01.2010' / Start date */
AND m.rollup_timestamp <= SYSDATE
AND DECODE(m.metric_column, 'ALLOCATED_GB', 'ALLOCATED_GB', 'USED_GB', 'USED_GB')='USED_GB'
GROUP BY DECODE(m.metric_column,'ALLOCATED_GB','ALLOCATED_GB','USED_GB','USED_GB'),
  m.rollup_timestamp
ORDER BY 2;

Answer 5

oracle数据库由数据文件，重做日志文件和控件组成   文件，临时文件。

数据库的大小实际上意味着   所有这些文件的总大小。

select 
( select sum(bytes)/1024/1024/1024 data_size from dba_data_files ) +
( select nvl(sum(bytes),0)/1024/1024/1024 temp_size from dba_temp_files ) +
( select sum(bytes)/1024/1024/1024 redo_size from sys.v_$log ) +
( select sum(BLOCK_SIZE*FILE_SIZE_BLKS)/1024/1024/1024 controlfile_size from v$controlfile) "Size in GB"
from
dual

来源： http://nimishgarg.blogspot.com/2010/05/oracle-total-size-of-database.html

在Oracle SQL开发人员中查找数据库大小

5 个答案: