在9i的時候，表空間的遷移使用EXP/IMP來實現。在10g中，除了使用EXP/IMP之外，還可以使用資料泵EXPDP/IMPDP，以及RMAN的命令TRANSPORT TABLESPACE命令，除此之外，還可以透過PL/SQL包DBMS_STREAMS_TABLESPACE_ADM來實現。

這一篇介紹PULL_TABLESPACES過程。

利用PLSQL實現表空間的遷移（一）：http://yangtingkun.itpub.net/post/468/484859

前文已經介紹過Oracle的DBMS_STREAMS_TABLESPACE_ADM包提供了8個過程：ATTACH_TABLESPACES、ATTACH_SIMPLE_TABLESPACE、CLONE_TABLESPACES、CLONE_SIMPLE_TABLESPACE、DETACH_TABLESPACES、DETACH_SIMPLE_TABLESPACE、PULL_TABLESPACES、PULL_SIMPLE_TABLESPACE。

其中PULL過程實際上包含了CLONE以及ATTACH兩個過程，其中還包括了DBMS_FILE_TRANSFER包的呼叫，使得在目標資料庫執行一個命令就完成表空間遷移的所有的操作。

這次要遷移的是多個表空間，而且源資料庫和目標資料庫與上一個例子中的完全一致，因此這裡選擇了PULL_TABLESPACES過程。

由於環境和上一個例子完全一致，這裡不需要進行資料庫版本、資料塊大小、以及字符集的檢查，唯一需要檢查的是，需要遷移表空間的一致性。

SQL> SELECT OWNER, TABLESPACE_NAME, SUM(BYTES)/1024/1024
2 FROM DBA_SEGMENTS
3 WHERE OWNER IN ('ZHIFU','DEMO_WH','JSJG','JS_DEV_OPER','DEMO_INFO','PMSADM','JSGOV','JS_DEV','JS_TEST')
4 GROUP BY OWNER, TABLESPACE_NAME;

OWNER                          TABLESPACE_NAME                SUM(BYTES)/1024/1024
------------------------------ ------------------------------ --------------------
JSGOV                          JSGOV                                     2778.1875
JSJG                           JSJG                                      2230.6875
DEMO_INFO                      DEMO_WH_TBS                                   205.5
JS_DEV                         JSTBS                                    39215.3125
ZHIFU                          ZHIFU                                         1.625
JS_DEV_OPER                    JSTBS                                         7.625
DEMO_WH                        DEMO_WH_TBS                                 303.875
PMSADM                         DEMO_WH_TBS                                488.4375
JS_TEST                        JIANGSU                                   10430.125

9 rows selected.

SQL> SELECT DISTINCT OWNER
2 FROM DBA_SEGMENTS
3 WHERE OWNER NOT IN
4 ('ZHIFU','DEMO_WH','JSJG','JS_DEV_OPER','DEMO_INFO','PMSADM','JSGOV','JS_DEV','JS_TEST')
5 AND TABLESPACE_NAME IN
6 (SELECT TABLESPACE_NAME
7 FROM DBA_SEGMENTS
8 WHERE OWNER IN
9 ('ZHIFU','DEMO_WH','JSJG','JS_DEV_OPER','DEMO_INFO','PMSADM','JSGOV','JS_DEV','JS_TEST'));

no rows selected

SQL> SELECT FILE_NAME
2 FROM DBA_DATA_FILES
3 WHERE TABLESPACE_NAME IN
4 (SELECT TABLESPACE_NAME
5 FROM DBA_SEGMENTS
6 WHERE OWNER IN
7 ('ZHIFU','DEMO_WH','JSJG','JS_DEV_OPER','DEMO_INFO','PMSADM','JSGOV','JS_DEV','JS_TEST'))
8 ORDER BY TABLESPACE_NAME, FILE_ID;

FILE_NAME
---------------------------------------------------------------------
/data/oracle/oradata/kaifa/demowarehouse01.dbf
/data/oracle/oradata/kaifa/jiangsu01.dbf
/data/oracle/oradata/kaifa/jsgov01.dbf
/data/oracle/oradata/kaifa/jsjg01.dbf
/data/oracle/oradata/kaifa/testjs01.dbf
/data/oracle/oradata/kaifa/testjs02.dbf
/data/oracle/oradata/kaifa/testjs03.dbf
/data/oracle/oradata/kaifa/testjs04.dbf
/data/oracle/oradata/kaifa/testjs05.dbf
/data/oracle/oradata/kaifa/testjs06.dbf
/data/oracle/oradata/kaifa/testjs07.dbf
/data/oracle/oradata/kaifa/testjs08.dbf
/data/oracle/oradata/kaifa/testjs09.dbf
/data/oracle/oradata/kaifa/testjs10.dbf
/data/oracle/oradata/kaifa/testjs11.dbf
/data/oracle/oradata/kaifa/testjs12.dbf
/data/oracle/oradata/kaifa/zhifu01.dbf

17 rows selected.

SQL> EXEC DBMS_TTS.TRANSPORT_SET_CHECK('JSGOV,JSJG,DEMO_WH_TBS,JSTBS,ZHIFU,JIANGSU')

PL/SQL procedure successfully completed.

SQL> SELECT * FROM TRANSPORT_SET_VIOLATIONS;

no rows selected

檢查目標資料庫：

SQL> SELECT NAME
2 FROM V$TABLESPACE
3 WHERE NAME IN ('JSGOV','JSJG','DEMO_WH_TBS','JSTBS','ZHIFU','JIANGSU');

NAME
------------------------------
JIANGSU
JSTBS

SQL> SELECT DISTINCT OWNER FROM DBA_SEGMENTS
2 WHERE TABLESPACE_NAME IN ('JIANGSU', 'JSTBS');

OWNER
------------------------------
JIANGSU15
JIANGSU

SQL> ALTER TABLESPACE JSTBS RENAME TO JSTBS229;

Tablespace altered.

由於檢查發現目標資料庫和源資料庫在表空間名稱上出現了衝突，因此修改目標資料庫的JSTBS表空間名稱為JSTBS229，另外在源資料庫中修改JIANGSU表空間為JS_TEST：

SQL> ALTER TABLESPACE JIANGSU RENAME TO JS_TEST;

Tablespace altered.

由於表空間出現重名的現象，除了在源資料庫和目標資料庫修改表空間之外，還需要特別注意一個地方，就是資料檔案是否重名的問題：

SQL> SELECT FILE_NAME FROM DBA_DATA_FILES;

FILE_NAME
---------------------------------------------------------------------------------
/data/oradata/test08/system01.dbf
/data/oradata/test08/undotbs01.dbf
/data/oradata/test08/sysaux01.dbf
/data/oradata/test08/users01.dbf
/data/oradata/test08/shiyq01.dbf
/data/oradata/test08/js_temp01.dbf
/data/oradata/test08/js_temp02.dbf
/data/oradata/test08/js_trade01.dbf
/data/oradata/test08/js_trade02.dbf
/data/oradata/test08/js_trade03.dbf
/data/oradata/test08/js_ndmain01.dbf
/data/oradata/test08/ndmain01.dbf
/data/oradata/test08/ndmain02.dbf
/data/oradata/test08/ndmain03.dbf
/data/oradata/test08/ndmain04.dbf
/data/oradata/test08/ndmain05.dbf
/data/oradata/test08/gpotbs01.dbf
/data/oradata/test08/gpotbs02.dbf
/data/oradata/test08/gpotbs03.dbf
/data/oradata/test08/gpotbs04.dbf
/data/oradata/test08/gpotbs05.dbf
/data/oradata/test08/testzj01.dbf
/data/oradata/test08/testzj02.dbf
/data/oradata/test08/testzj03.dbf
/data/oradata/test08/testzj04.dbf
/data/oradata/test08/testzj05.dbf
/data/oradata/test08/testzj06.dbf
/data/oradata/test08/testzj07.dbf
/data/oradata/test08/testzj08.dbf
/data/oradata/test08/testzj09.dbf
/data/oradata/test08/testzj10.dbf
/data/oradata/test08/testzj11.dbf
/data/oradata/test08/oldjiangsu01.dbf
/data/oradata/test08/oldjiangsu02.dbf
/data/oradata/test08/jiesuan01.dbf
/data/oradata/test08/jiesuan02.dbf
/data/oradata/test08/jiesuan03.dbf
/data/oradata/test08/newjiangsu01.dbf
/data/oradata/test08/newjiangsu02.dbf
/data/oradata/test08/newjiangsu03.dbf
/data/oradata/test08/newjiangsu04.dbf
/data/oradata/test08/newjiangsu05.dbf
/data/oradata/test08/newjiangsu06.dbf
/data/oradata/test08/js_lyg.dbf
/data/oradata/test08/js_hc.dbf
/data/oradata/test08/test01.dbf
/data/oradata/test08/zj_lpd01.dbf
/data/oradata/test08/info_01.dbf
/data/oradata/test08/info_02.dbf
/data/oradata/test08/jshc_test01.dbf
/data/oradata/test08/TJSQ01.dbf
/data/oradata/test08/TJSQ02.dbf
/data/oradata/test08/TJSQ03.dbf
/data/oradata/test08/TJSQ04.dbf
/data/oradata/test08/sckc01.dbf

55 rows selected.

幸好資料檔名稱沒有出現重複，否則還需要對資料檔名稱進行重新命名。

由於進行過遷移表空間的操作，所有的目錄都已經建立完成，資料庫鏈也已經建立完成，下面需要建立目標資料庫上的目標使用者，首先獲取源資料庫使用者授權的角色和許可權：

SQL> SELECT 'GRANT ' || GRANTED_ROLE || ' TO ' || GRANTEE || ';'
2 FROM DBA_ROLE_PRIVS
3 WHERE GRANTEE IN ('ZHIFU','DEMO_WH','JSJG','JS_DEV_OPER','DEMO_INFO','PMSADM','JSGOV','JS_DEV','JS_TEST')
4 ORDER BY GRANTEE, GRANTED_ROLE;

'GRANT'||GRANTED_ROLE||'TO'||GRANTEE||';'
-----------------------------------------------------------------------
GRANT CONNECT TO DEMO_INFO;
GRANT RESOURCE TO DEMO_INFO;
GRANT CONNECT TO DEMO_WH;
GRANT RESOURCE TO DEMO_WH;
GRANT CONNECT TO JSGOV;
GRANT RESOURCE TO JSGOV;
GRANT CONNECT TO JSJG;
GRANT RESOURCE TO JSJG;
GRANT CONNECT TO JS_DEV;
GRANT RESOURCE TO JS_DEV;
GRANT CONNECT TO JS_DEV_OPER;
GRANT RESOURCE TO JS_DEV_OPER;
GRANT CONNECT TO JS_TEST;
GRANT RESOURCE TO JS_TEST;
GRANT CONNECT TO PMSADM;
GRANT RESOURCE TO PMSADM;
GRANT CONNECT TO ZHIFU;
GRANT RESOURCE TO ZHIFU;

18 rows selected.

SQL> SELECT 'GRANT ' || PRIVILEGE || ' TO ' || GRANTEE || ';'
2 FROM DBA_SYS_PRIVS
3 WHERE GRANTEE IN ('ZHIFU','DEMO_WH','JSJG','JS_DEV_OPER','DEMO_INFO','PMSADM','JSGOV','JS_DEV','JS_TEST')
4 AND PRIVILEGE NOT IN
5 (SELECT PRIVILEGE FROM DBA_SYS_PRIVS
6 WHERE GRANTEE IN ('CONNECT', 'RESOURCE'))
7 ORDER BY GRANTEE;

'GRANT'||PRIVILEGE||'TO'||GRANTEE||';'
---------------------------------------------------------------------------------
GRANT CREATE SYNONYM TO DEMO_INFO;
GRANT CREATE VIEW TO DEMO_INFO;
GRANT CREATE DATABASE LINK TO JSGOV;
GRANT CREATE MATERIALIZED VIEW TO JSGOV;
GRANT CREATE SYNONYM TO JSGOV;
GRANT CREATE VIEW TO JSGOV;
GRANT CREATE DATABASE LINK TO JSJG;
GRANT CREATE MATERIALIZED VIEW TO JSJG;
GRANT CREATE SYNONYM TO JSJG;
GRANT CREATE VIEW TO JSJG;
GRANT CREATE DATABASE LINK TO JS_DEV;
GRANT CREATE SYNONYM TO JS_DEV;
GRANT CREATE VIEW TO JS_DEV;
GRANT CREATE DATABASE LINK TO JS_DEV_OPER;
GRANT CREATE SYNONYM TO JS_DEV_OPER;
GRANT CREATE VIEW TO JS_DEV_OPER;
GRANT ALTER SESSION TO JS_TEST;
GRANT CREATE DATABASE LINK TO JS_TEST;
GRANT CREATE MATERIALIZED VIEW TO JS_TEST;
GRANT CREATE SYNONYM TO JS_TEST;
GRANT CREATE VIEW TO JS_TEST;
GRANT CREATE VIEW TO PMSADM;
GRANT CREATE DATABASE LINK TO ZHIFU;
GRANT CREATE SYNONYM TO ZHIFU;
GRANT CREATE VIEW TO ZHIFU;

25 rows selected.

利用上面的授權，就可以在目標資料庫建立使用者，並授權，篇幅所限，這個過程就省略了。

下面就可以執行PULL_TABLESPACES過程了，需要注意，這個過程的輸入引數包括了索引組織表型別和記錄，因此需要透過建立一個PL/SQL匿名塊來完成呼叫，注意輸入引數變數的宣告需要用DBMS_STREAMS_TABLESPACE_ADM包中的型別進行宣告，否則呼叫會報錯：

SQL> DECLARE
2     V_JOB_NAME VARCHAR2(30) := 'MY_IMP_TABLESPACE';
3     V_TABLESPACE_NAME DBMS_STREAMS_TABLESPACE_ADM.TABLESPACE_SET;
4     V_DIRECTORY_NAME DBMS_STREAMS_TABLESPACE_ADM.DIRECTORY_OBJECT_SET;
5     V_LOGFILE DBMS_STREAMS_TABLESPACE_ADM.FILE;
6 BEGIN
7     V_TABLESPACE_NAME(1) := 'JSGOV';
8     V_TABLESPACE_NAME(2) := 'JSJG';
9     V_TABLESPACE_NAME(3) := 'DEMO_WH_TBS';
10     V_TABLESPACE_NAME(4) := 'JSTBS';
11     V_TABLESPACE_NAME(5) := 'ZHIFU';
12     V_TABLESPACE_NAME(6) := 'JS_TEST';
13     V_DIRECTORY_NAME(1) := 'D_TRANS';
14     V_LOGFILE.DIRECTORY_OBJECT := 'DMP_DIR';
15     V_LOGFILE.FILE_NAME := 'imp_tablespaces.log';
16     DBMS_STREAMS_TABLESPACE_ADM.PULL_TABLESPACES(V_JOB_NAME, 'KAIFA', V_TABLESPACE_NAME, V_DIRECTORY_NAME, V_LOGFILE);
17 END;
18 /
DECLARE
*
ERROR at line 1:
ORA-06512: at "SYS.DBMS_STREAMS_TABLESPACE_ADM", line 2355
ORA-06512: at line 16

表空間遷移過程報錯了，從返回錯誤資訊上看不出任何有意義的東西，檢查一下對應的LOGFILE日誌：

[oracle@yans1 backup]$ more imp_tablespaces.log
Starting "SYS"."MY_IMP_TABLESPACE":
Processing object type TRANSPORTABLE_EXPORT/PLUGTS_BLK
Processing object type TRANSPORTABLE_EXPORT/TABLE
Processing object type TRANSPORTABLE_EXPORT/GRANT/OWNER_GRANT/OBJECT_GRANT
Processing object type TRANSPORTABLE_EXPORT/INDEX
Processing object type TRANSPORTABLE_EXPORT/CONSTRAINT/CONSTRAINT
Processing object type TRANSPORTABLE_EXPORT/INDEX_STATISTICS
Processing object type TRANSPORTABLE_EXPORT/COMMENT
Processing object type TRANSPORTABLE_EXPORT/CONSTRAINT/REF_CONSTRAINT
Processing object type TRANSPORTABLE_EXPORT/TRIGGER
ORA-39082: Object type TRIGGER:"JS_TEST"."CAT_REGION_CM_TR" created with compilation warnings
ORA-39082: Object type TRIGGER:"JS_TEST"."CAT_REGION_CM_TR" created with compilation warnings
ORA-39082: Object type TRIGGER:"JS_TEST"."DRG_ORDHITCOMMTEM_ON_NEWHOS" created with compilation warnings
ORA-39082: Object type TRIGGER:"JS_TEST"."DRG_ORDHITCOMMTEM_ON_NEWHOS" created with compilation warnings
ORA-39082: Object type TRIGGER:"JS_TEST"."ORD_HOSPITAL_CATALOG_BEIAN" created with compilation warnings
ORA-39082: Object type TRIGGER:"JS_TEST"."TRG_PRODUCT_SERIAL" created with compilation warnings
ORA-39082: Object type TRIGGER:"JS_TEST"."TRG_PRODUCT_SERIAL" created with compilation warnings
Processing object type TRANSPORTABLE_EXPORT/INDEX/FUNCTIONAL_AND_BITMAP/INDEX
Processing object type TRANSPORTABLE_EXPORT/INDEX/STATISTICS/FUNCTIONAL_AND_BITMAP/INDEX_STATISTICS
Processing object type TRANSPORTABLE_EXPORT/TABLE_STATISTICS
Job "SYS"."MY_IMP_TABLESPACE" stopped due to fatal error at 16:02:35

顯然，表空間已經載入完成，只是由於個別物件的問題導致了錯誤資訊。在資料庫中檢查表空間資訊：

SQL> SELECT NAME FROM V$TABLESPACE
2 WHERE NAME IN ('JSGOV', 'JSJG', 'DEMO_WH_TBS', 'JSTBS', 'ZHIFU', 'JS_TEST');

NAME
------------------------------
JS_TEST
ZHIFU
JSTBS
DEMO_WH_TBS
JSJG
JSGOV

6 rows selected.

SQL> SELECT OWNER, COUNT(*)
2 FROM DBA_OBJECTS
3 WHERE OWNER IN ('ZHIFU','DEMO_WH','JSJG','JS_DEV_OPER','DEMO_INFO','PMSADM','JSGOV','JS_DEV','JS_TEST')
4 GROUP BY OWNER;

OWNER                            COUNT(*)
------------------------------ ----------
ZHIFU                                  13
JS_DEV                               1444
PMSADM                                 30
JSJG                                  225
DEMO_WH                               347
JSGOV                                  68
JS_DEV_OPER                            31
JS_TEST                              1572
DEMO_INFO                             602

9 rows selected.

SQL> SELECT TABLESPACE_NAME, STATUS
2 FROM DBA_TABLESPACES
3 WHERE TABLESPACE_NAME IN ('JSGOV', 'JSJG', 'DEMO_WH_TBS', 'JSTBS', 'ZHIFU', 'JS_TEST');

TABLESPACE_NAME                STATUS
------------------------------ ---------
DEMO_WH_TBS                    READ ONLY
JSGOV                          READ ONLY
JSJG                           READ ONLY
JSTBS                          READ ONLY
JS_TEST                        READ ONLY
ZHIFU                          READ ONLY

6 rows selected.

雖然執行DBMS_STREAMS_TABLESPACE_ADM包的PULL_TABLESPACES過程報錯了，但是遷移表空間的操作已經完成。剩下根據需要決定是否對匯入過程中的錯誤進行額外的處理。

表空間遷移完成後，載入的表空間處於只讀狀態，可以根據具體的需要決定是否將其置為可寫狀態。

利用PLSQL實現表空間的遷移（二）

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