(表空间缩容脚本)] --1、获取需要释放空间的表空间信息(包含oracle database自有表空间) --drop table system.tbs_detail; create table system.tbs_detail as select a.tablespace_name, a.bytes/1024/1024 sum_mb, (a.bytes-b.bytes)/1024/1024 used_mb, b
(表空间缩容脚本)]
--1、获取需要释放空间的表空间信息(包含oracle database自有表空间)
--drop table system.tbs_detail;
create table system.tbs_detail as select
a.tablespace_name,
a.bytes/1024/1024 sum_mb,
(a.bytes-b.bytes)/1024/1024 used_mb,
b.bytes/1024/1024 free_mb,
round(((a.bytes-b.bytes)/a.bytes)*100,2) percent_used
from
(select tablespace_name,sum(bytes) bytes from dba_data_files group by tablespace_name) a,
(select tablespace_name,sum(bytes) bytes,max(bytes) largest from dba_free_space group by tablespace_name) b
where a.tablespace_name=b.tablespace_name
order by ((a.bytes-b.bytes)/a.bytes) desc;
--select * from system.tbs_detail order by sum_mb desc,free_mb desc;
--2、获取需要释放空间的应用表空间数据文件使用情况
--drop table system.datafile_space;
create table system.datafile_space as
select a.tablespace_name,
a.file_name,
a.bytes / 1024 / 1024 total,
b.sum_free / 1024 / 1024 free
from dba_data_files a,
(select file_id, sum(bytes) sum_free
from dba_free_space
group by file_id) b
where a.file_id = b.file_id
and a.tablespace_name in (select tablespace_name
from system.tbs_detail
where (tablespace_name like '%cqlt%' or
tablespace_name like '%cqst%'
or tablespace_name like 'ts%' or tablespace_name like 'idx%'
or tablespace_name like '%hx%')
and sum_mb > 100);
--select * from system.datafile_space;
--3、生成数据文件大小重置脚本，，在每个数据文件当前实际使用空间大小基础上增加 100m 空间
select 'alter database datafile ''' || file_name || ''' resize ' ||
round(to_number(total - free + 100),0) || ' m;'
from system.datafile_space;
--查看 asm 磁盘组使用情况
sqlplus / as sysdba
set feed off
set linesize 200
set pagesize 200
set echo off
spool /home/oracle/check_log/chktbs.log append
select name,state,type,total_mb,free_mb from v$asm_diskgroup;
spool off
quit
eof