Oracle 表空间迁移
迁移表空间databump使用databump导入导出，两个库用户必须一致，否则另一个库导入的时候会报错。所以两个库都是用helei用户。
给两个数据库的用户分别授予dba权限，这里只是实验更清晰而已。
SQL> create user helei identified by MANAGER;
User created.
SQL> grant connect,resource to helei;
Grant succeeded.
SQL> grant dba to helei;
Grantsucceeded.
我们先查看表空间，我们要把主机HE3中的heleitbs表空间空间迁移到HE4的数据库当中。
SQL>select TABLESPACE_NAME,STATUS from dba_tablespaces;
TABLESPACE_NAME STATUS
---------------------------------------
SYSTEM ONLINE
SYSAUX ONLINE
UNDOTBS1 ONLINE
TEMP ONLINE
USERS ONLINE
EXAMPLE ONLINE
6 rowsselected.
我们在HE3上的heleitbs表空间中创建一张表，所有的操作都用到helei用户
SQL>createtablespace heleitbs datafile '/u01/app/oracle/oradata/orcl/heleitbs1.dbf' size10m;
Tablespacecreated.
SQL> createtable TTT (a int,b varchar2(20));
Tablecreated.
SQL> alter table TTT add constraint TTT_PRIKEYprimary key (a);
insert into ttt values(1,'helei1');
insert into ttt values(2,'helei2');
SQL> commit;
Commit complete.
2.先在两个虚拟机上创建目录，并且授权
$ mkdir -p /home/oracle/dumpfile
$ chown -R oracle. dumpfile
$ chmod -R 755 dumpfile
在HE3数据库中给文件夹做授权
SQL>createdirectory dumpfile as '/home/oracle/dumpfile';
Directorycreated.
SQL> grant all on directory dumpfile to public;
Grantsucceeded.
在HE4数据库中给文件夹做授权
SQL>createdirectory dumpfile as '/home/oracle/dumpfile';
Directorycreated.
SQL> grant all on directory dumpfile to public;
Grantsucceeded.
3.在HE3库中，需要用sys登录，检查一下表空间里面的表是否可以迁移。
查询代码：
EXECUTE DBMS_TTS.TRANSPORT_SET_CHECK('需要迁移的表空间名字', TRUE);
SELECT * FROM TRANSPORT_SET_VIOLATIONS;
SQL> conn / as sysdba
Connected.
SQL>show user
USER is"SYS"
SQL>EXECUTEDBMS_TTS.TRANSPORT_SET_CHECK('heleitbs',true);
PL/SQLprocedure successfully completed.
SQL> select * from transport_set_violations;
no rowsselected
4.在HE3库中，把heleitbs表空间变为只读。
SQL> conn / as sysdba
Connected.
SQL> alter tablespace heleitbs read only;
Tablespacealtered.
SQL>select TABLESPACE_NAME,STATUS from dba_tablespaces;
TABLESPACE_NAME STATUS
---------------------------------------
SYSTEM ONLINE
SYSAUX ONLINE
UNDOTBS1 ONLINE
TEMP ONLINE
USERS ONLINE
EXAMPLE ONLINE
HELEITBS READ ONLY
7 rowsselected.
5. 使用databump导入导出把helei用户的heleitbs表空间导出到系统中的文件夹中。
$ expdp helei/MANAGERdumpfile=helei.dmp directory=dumpfile transport_tablespaces=heleitbs
Export: Release11.2.0.1.0 - Production on Sun Dec 13 23:59:37 2015
Copyright (c) 1982,2009, Oracle and/or its affiliates.Allrights reserved.
Connected to: OracleDatabase 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With thePartitioning, OLAP, Data Mining and Real Application Testing options
Starting"HELEI"."SYS_EXPORT_TRANSPORTABLE_01":helei/******** dumpfile=helei.dmpdirectory=dumpfile transport_tablespaces=heleitbs
Processing objecttype TRANSPORTABLE_EXPORT/PLUGTS_BLK
Processing objecttype TRANSPORTABLE_EXPORT/POST_INSTANCE/PLUGTS_BLK
Master table"HELEI"."SYS_EXPORT_TRANSPORTABLE_01" successfullyloaded/unloaded
******************************************************************************
Dump file set forHELEI.SYS_EXPORT_TRANSPORTABLE_01 is:
/home/oracle/dumpfile/helei.dmp
******************************************************************************
Datafiles requiredfor transportable tablespace HELEITBS:
/u01/app/oracle/oradata/orcl/heleitbs1.dbf
Job"HELEI"."SYS_EXPORT_TRANSPORTABLE_01" successfullycompleted at 23:59:56
6.用scp把HE3的dumpfile文件夹里面的helei.dmp拷贝到HE4的dumpfile文件夹中。
$ scp -rp helei.dmpHE4:/home/oracle/dumpfile/
oracle@he4'spassword:
helei.dmp 100% 80KB80.0KB/s
在HE4虚拟机里查看一下dumpfile文件夹有没有helei.dmp
$ cd dumpfile/
$ ls
helei.dmp
7.分别查看HE3库和HE4库的数据文件存在的位置。
HE3库
SQL>select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/orcl/system01.dbf
/u01/app/oracle/oradata/orcl/sysaux01.dbf
/u01/app/oracle/oradata/orcl/undotbs01.dbf
/u01/app/oracle/oradata/orcl/users01.dbf
/u01/app/oracle/oradata/orcl/example01.dbf
/u01/app/oracle/oradata/orcl/heleitbs1.dbf
6 rowsselected.
HE4库
SQL>select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/orcl/system01.dbf
/u01/app/oracle/oradata/orcl/sysaux01.dbf
/u01/app/oracle/oradata/orcl/undotbs01.dbf
/u01/app/oracle/oradata/orcl/users01.dbf
/u01/app/oracle/oradata/orcl/example01.dbf
8.把HE3库的数据文件heleitbs1.dbf拷贝到HE4库里的数据文件当中。
$ cd /u01/app/oracle/oradata/orcl/
$ scp heleitbs1.dbfHE4:/u01/app/oracle/oradata/orcl/
oracle@he4'spassword:
heleitbs1.dbf 100% 10MB10.0MB/s00:00
然后查看一下HE4有没有heleitbs1.dbf文件
$ cd /u01/app/oracle/oradata/orcl/
$ ls
control01.ctlexample01.dbf redo01.logredo03.log system01.dbfundotbs01.dbf
control02.ctlheleitbs1.dbf redo02.logsysaux01.dbftemp01.dbf users01.dbf
9.这时用使用databump导入导出把HE4的dumpfile文件家里面的helei.dmp导入到自己的数据库中
$ impdp helei/MANAGERdumpfile=helei.dmp directory=dumpfile transport_datafiles='/u01/app/oracle/oradata/orcl/heleitbs1.dbf'
Import:Release 11.2.0.1.0 - Production on Mon Dec 14 00:36:33 2015
Copyright(c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
Connectedto: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bitProduction
With thePartitioning, OLAP, Data Mining and Real Application Testing options
Mastertable "HELEI"."SYS_IMPORT_TRANSPORTABLE_01" successfullyloaded/unloaded
Starting"HELEI"."SYS_IMPORT_TRANSPORTABLE_01":helei/******** dumpfile=helei.dmpdirectory=dumpfiletransport_datafiles=/u01/app/oracle/oradata/orcl/heleitbs1.dbf
Processingobject type TRANSPORTABLE_EXPORT/PLUGTS_BLK
Processingobject type TRANSPORTABLE_EXPORT/POST_INSTANCE/PLUGTS_BLK
Job"HELEI"."SYS_IMPORT_TRANSPORTABLE_01" successfullycompleted at 00:36:49
10.把两个库中的heleitbs表空间都设置为读写模式。
两个库命令是一致的使用dba用户和weixiaobin用户都可以
SQL> alter tablespace heleitbs read write;
Tablespacealtered.
11.验证，看看HE4虚拟数据中是不是HELEITBS表空间。看看表空间里有没有TTT的表
SQL> select TABLE_NAME,TABLESPACE_NAME fromdba_tables where TABLESPACE_NAME='HELEITBS';
TABLE_NAME TABLESPACE_NAME
------------------------------------------------------------
TTT HELEITBS
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