oracle表空间(tablespace)的增删改查(create/drop/rename,move/select)

2013-03-05

oracle维护中经常会对表空间进行操作,整理了一下tablespace的增删改查操作(create/drop/rename,move/select)

1、create tablespace

#!/bin/bash

dts_src=DATA_TS

data_ts1=/data1/oracle/data_201303_ts1.dbf

data_ts2=/data1/oracle/data_201303_ts2.dbf

sqlplus user01/pw123456 << EOF

CREATE TABLESPACE $dts_src DATAFILE '$data_ts1' SIZE 512M AUTOEXTEND ON NEXT 256M MAXSIZE UNLIMITED BLOCKSIZE 16k;

alter TABLESPACE $dts_src add DATAFILE '$data_ts2' SIZE 512M AUTOEXTEND ON NEXT 256M MAXSIZE UNLIMITED;

quit;

EOF

2、drop tablespace

如果tablespace中包含table,需要先进行drop table,为了drop table ,你需要查询tablespace中包含哪些table:

col SEGMENT_NAME format a30

select distinct SEGMENT_NAME,TABLESPACE_NAME from dba_segments where TABLESPACE_NAME='DATA_TS' order by SEGMENT_NAME;

假如tablename是：tablename_201202

你也可以先truncate table，再drop table.

#!/bin/bash

. ~/.bash_profile

#create drop sql

#select 'drop table '||tname||' purge;' from tab where tname like '%20110%' order by tname;

ym=201202

sqlplus user01/pw123456 << EOF

truncate table tablename_$ym;

drop table tablename_$ym purge;

DROP TABLESPACE DATA_TS_$ym INCLUDING CONTENTS AND DATAFILES;

quit;

EOF

3、重命名表空间

#!/bin/bash

dts_src=DATA_TS

dts_dst=DATA_TS_201302

data_ts1=/data1/oracle/data_201303_ts1.dbf

data_ts2=/data1/oracle/data_201303_ts2.dbf

sqlplus user01/pw123456 << EOF

alter tablespace $dts_src rename to $dts_dst;

quit;

EOF

4、改变表空间数据文件存放位置

#!/bin/bash

. ~/.bash_profile

ts=DATA_TS_201207

src1=/data3/oracle/data_ts_201207_1.dbf

dst1=/datac3/oracle/data_ts_201207_1.dbf

src2=/data3/oracle/data_ts_201207_2.dbf

dst2=/datac3/oracle/data_ts_201207_2.dbf

sqlplus user01/pw123456 << EOF

set hea off

alter tablespace $ts read only;

alter tablespace $ts offline;

!mv $src1 $dst1

!mv $src2 $dst2

alter database rename file '$src1' to '$dst1';

alter database rename file '$src2' to '$dst2';

alter tablespace $ts online;

alter tablespace $ts read write;

quit;

EOF

5、改变数据文件存储参数

alter database datafile '/data2/oracle/view_data02.dbf' AUTOEXTEND ON NEXT 256M MAXSIZE UNLIMITED;

6、查询表空间信息

col name format a50

set linesize 200

select a.name,b.name from v$tablespace a ,v$datafile b where a.TS#=b.TS#;

col file_name format a50

select TABLESPACE_NAME,FILE_NAME from dba_data_files order by TABLESPACE_NAME;

get tablespace_name

select distinct(TABLESPACE_NAME) from dba_data_files order by tablespace_name;

tablespace use space

select segment_name, sum(bytes)/1024/1024 Mbytese from user_segments where segment_type='TABLE' group by segment_name;

select sum(bytes)/1024/1024 size_mb from dba_data_files where tablespace_name='SYSTEM';

分类：数据库 | 标签： oracle |

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