--
1、查看Oracle数据库中数据文件信息的命令方法
select
b.file_name 物理文件名,
b.tablespace_name 表空间,
b.bytes/
1024/
1024 大小M,
(b.bytes-sum(nvl(a.bytes,
0)))/
1024/
1024 已使用M,
substr((b.bytes-sum(nvl(a.bytes,
0)))/(b.bytes)*
100,
1,
5) 利用率
from dba_free_space a,dba_data_files b
where a.file_id=
b.file_id
group by b.tablespace_name,b.file_name,b.bytes
order by b.tablespace_name
--
2、
select *
from dba_data_files;
--
3、
SELECT UPPER(F.TABLESPACE_NAME) "表空间名",
D.TOT_GROOTTE_MB "表空间大小(M)",
D.TOT_GROOTTE_MB - F.TOTAL_BYTES
"已使用空间(M)",
TO_CHAR(ROUND((D.TOT_GROOTTE_MB - F.TOTAL_BYTES) / D.TOT_GROOTTE_MB *
100,
2),
'990.99') ||
'%' "使用比",
F.TOTAL_BYTES "空闲空间(M)",
F.MAX_BYTES "最大块(M)"
FROM (SELECT TABLESPACE_NAME,
ROUND(SUM(BYTES) / (
1024 *
1024),
2) TOTAL_BYTES,
ROUND(MAX(BYTES) / (
1024 *
1024),
2) MAX_BYTES
FROM SYS.DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME) F,
(SELECT DD.TABLESPACE_NAME,
ROUND(SUM(DD.BYTES) / (
1024 *
1024),
2) TOT_GROOTTE_MB
FROM SYS.DBA_DATA_FILES DD
GROUP BY DD.TABLESPACE_NAME) D
WHERE D.TABLESPACE_NAME =
F.TABLESPACE_NAME
ORDER BY 1;
SELECT ROUND(SUM(BYTES)/
1024/
1024/
1024,
2)||
'GB'
FROM DBA_DATA_FILES;
SELECT SUM(BYTES)/
1024/
1024/
1024 AS GB
FROM DBA_TEMP_FILES;
SELECT SUM(BYTES)/
1024/
1024/
1024 AS GB
FROM V$LOG;
SELECT SUM(GB) AS GB
FROM(
SELECT SUM(BYTES)/
1024/
1024/
1024 AS GB
FROM DBA_DATA_FILES
UNION ALL
SELECT SUM(BYTES)/
1024/
1024/
1024
FROM DBA_TEMP_FILES
UNION ALL
SELECT SUM(BYTES)/
1024/
1024/
1024
FROM V$LOG
);
转载于:https://www.cnblogs.com/Jeely/p/11386966.html
