Oracle 查看表空间的大小及使用情况sql语句
时间：2021-07-01 10:21:17
帮助过：2人阅读
1、查看表空间的名称及大小
SELECT t.tablespace_name,
round(
SUM(bytes
/ (
1024 * 1024)),
0) ts_size
FROM dba_tablespaces t, dba_data_files d
WHERE t.tablespace_name
= d.tablespace_name
GROUP BY t.tablespace_name;
--2、查看表空间物理文件的名称及大小
SELECT tablespace_name,
file_id,
file_name,
round(bytes
/ (
1024 * 1024),
0) total_space
FROM dba_data_files
ORDER BY tablespace_name;
--3、查看回滚段名称及大小
SELECT segment_name,
tablespace_name,
r.status,
(initial_extent / 1024) initialextent,
(next_extent / 1024) nextextent,
max_extents,
v.curext curextent
FROM dba_rollback_segs r, v$rollstat v
WHERE r.segment_id
= v.usn(
+)
ORDER BY segment_name;
--4、查看控制文件
SELECT NAME
FROM v$controlfile;
--5、查看日志文件
SELECT MEMBER
FROM v$logfile;
--6、查看表空间的使用情况
SELECT SUM(bytes)
/ (
1024 * 1024)
AS free_space, tablespace_name
FROM dba_free_space
GROUP BY tablespace_name;
SELECT a.tablespace_name,
a.bytes total,
b.bytes used,
c.bytes free,
(b.bytes * 100)
/ a.bytes "
% USED ",
(c.bytes * 100)
/ a.bytes "
% FREE "
FROM sys.sm$ts_avail a, sys.sm$ts_used b, sys.sm$ts_free c
WHERE a.tablespace_name
= b.tablespace_name
AND a.tablespace_name
= c.tablespace_name;
--7、查看数据库库对象
SELECT owner, object_type, status,
COUNT(
*)
count#
FROM all_objects
GROUP BY owner, object_type, status;
--8、查看数据库的版本
SELECT version
FROM product_component_version
WHERE substr(product,
1,
6)
= ‘Oracle‘;
--9、查看数据库的创建日期和归档方式
SELECT created, log_mode, log_mode
FROM v$
database;
Oracle 查看表空间的大小及使用情况sql语句
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