今天開發組的DBLINK環境發生一個奇怪的現象，一個分區表通過DBLINK進行數據插入時，
原表的近萬條數據沒有被插入就正常結束了。導入的結果是[0 rows] 正常結束。
在MOS上查了一下，這個現象，找到了下面的文檔
DataPump Expdp Or Impdp With NETWORK_LINK Returns No Rows Exported Or
Imported For Partitioned Table (Doc ID 1381419.1)
按文檔的說明，在Oracle11.2.0.1環境中，通過DBLINK實現impdp(expdp)時，由於
OBJECT_ID與DATA_OBJECT_ID不一致，造成這個分區的數據無法正常導出（導入）。
解決方法就是升級到11.2.0.2。
爲此，我做如下的實驗
--在主表側做一個實現用的表
SQL> create table test_tab
(
deptno number,
deptname varchar2(20),
quarterly_sales number(10, 2),
state varchar2(2)
)
partition by list (state)
(
partition northwest values ('OR', 'WA'),
partition southwest values ('AZ', 'UT', 'NM'),
partition northeast values ('NY', 'VM', 'NJ'),
partition southeast values ('FL', 'GA'),
partition northcentral values ('SD', 'WI'),
partition southcentral values ('OK', 'TX')
); 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
表が作成されました。
SQL> insert into test_tab values (11, 'support', 111, 'WA');
1行が作成されました。
SQL> commit;
コミットが完了しました。
SQL> insert into tab_test values (11, 'support', 111, 'WA');
1行が作成されました。
SQL> commit;
コミットが完了しました。
SQL> select owner,SUBOBJECT_NAME, OBJECT_ID, DATA_OBJECT_ID, OBJECT_TYPE
2 from dba_objects
3 where object_name = 'TEST_TAB' and owner='CN31TEST';
OWNER SUBOBJECT_NAME OBJECT_ID DATA_OBJECT_ID OBJECT_TYPE
---------- -------------------- --------- -------------- ---------------
CN31TEST 82437 TABLE
CN31TEST NORTHCENTRAL 82442 82442 TABLE PARTITION
CN31TEST NORTHEAST 82440 82440 TABLE PARTITION
CN31TEST NORTHWEST 82438 82468 TABLE PARTITION
★OBJECT_IDとDATA_OBJECT_IDが異なる環境
CN31TEST SOUTHCENTRAL 82443 82443 TABLE PARTITION
CN31TEST SOUTHEAST 82441 82441 TABLE PARTITION
CN31TEST SOUTHWEST 82439 82439 TABLE PARTITION
7行が選択されました。
--在遠程庫做一個實驗用戶
SQL> create user cn31test identified by cn31;
User created.
SQL> grant connect, resource, CREATE DATABASE LINK, CREATE VIEW, CREATE MATERIALIZED
VIEW to cn31test;
Grant succeeded.
--在遠程庫做一個DBLINK
SQL> conn cn31test/cn31
Connected.
SQL> create database link cn11 connect to cn31test identified by cn31 using 'TEST01';
Database link created.
--在遠程庫做一個相同結構的表
SQL> create table test_tab
(
deptno number,
deptname varchar2(20),
quarterly_sales number(10, 2),
state varchar2(2)
)
partition by list (state)
(
partition northwest values ('OR', 'WA'),
partition southwest values ('AZ', 'UT', 'NM'),
partition northeast values ('NY', 'VM', 'NJ'),
partition southeast values ('FL', 'GA'),
partition northcentral values ('SD', 'WI'),
partition southcentral values ('OK', 'TX')
); 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Table created.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit
Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
--導入實驗
[oracle@localhost admin]$ impdp cn31test/cn31 content=data_only network_link=cn11
tables=test_tab:northwest
Import: Release 11.2.0.4.0 - Production on Tue Mar 4 10:16:01 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit
Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Starting "CN31TEST"."SYS_IMPORT_TABLE_01": cn31test/******** content=data_only
network_link=cn11
tables=test_tab:northwest
Estimate in progress using BLOCKS method...
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 64 KB
. . imported "CN31TEST"."TEST_TAB":"NORTHWEST" 0 rows ★錯誤發生
Job "CN31TEST"."SYS_IMPORT_TABLE_01" successfully completed at Tue Mar 4 10:16:21
2014 elapsed 0 00:00:19
--再次追加一條新的記錄
SQL> insert into test_tab values (20, 'technical', 200, 'NM');
1行が作成されました。
SQL> commit;
--導入實驗
[oracle@localhost admin]$ impdp cn31test/cn31 content=data_only network_link=cn11
tables=test_tab:southwest
Import: Release 11.2.0.4.0 - Production on Tue Mar 4 10:18:07 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit
Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Starting "CN31TEST"."SYS_IMPORT_TABLE_01": cn31test/******** content=data_only
network_link=cn11
tables=test_tab:southwest
Estimate in progress using BLOCKS method...
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 64 KB
. . imported "CN31TEST"."TEST_TAB":"SOUTHWEST" 1 rows
Job "CN31TEST"."SYS_IMPORT_TABLE_01" successfully completed at Tue Mar 4 10:18:14
2014 elapsed 0 00:00:06
--主表側
SQL> col DEPTNAME for a15
SQL> select * from cn31test.test_tab;
DEPTNO DEPTNAME QUARTERLY_SALES STATE
---------- --------------- --------------- ------
11 support 111 WA
20 technical 200 NM
--遠程庫
[oracle@localhost admin]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Tue Mar 4 10:32:53 2014
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select * from cn31test.test_tab;
DEPTNO DEPTNAME QUARTERLY_SALES ST
---------- -------------------- --------------- --
20 technical 200 NM