这篇文章会慢慢的积累
1.查看数据库用户占表空间的大小
select owner,tablespace_name ,sum(bytes)/1024/1024 from dba_segments group by owner,tablespace_name;
Select Owner,Tablespace_name,Segment_Name,Segment_Type,Sum(bytes)/1024/1024 sums From Dba_Extents Group By Owner,Tablespace_name,Segment_Name,Segment_Type
2.查看表空间文件
select * from dba_data_files
3.查看用户在那些表空间
select * from dba_users
4.监控表空间大小的语句
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 4 DES
5.查看视图创建语句的sql
set long 20000；
select text from dba_views where view_name = 'xxx '
