Question

我需要一种有效的方法将数据从一个数据库复制到另一个数据库。两者都基于Oracle 11g。

步骤:(重新）创建新表
步骤：安装pl sql软件包
步骤：使用expdp
步骤：使用impdp
+ x步骤：使用已安装的pl sql程序

挑战： pl sql过程使用了tab_new1和tab_new2。因此，我在步骤1和2中创建了两个表。在步骤3和4中，我只导入和导出数据。但是tab_new1和tab_new2还有其他列 - ＆gt;导入失败。我尝试在没有新列的情况下创建视图。

导入失败，并显示以下错误消息：

ORA-31693: Table data object "Schema"."tab_old1" failed to load/unload and is being skipped due to error:
ORA-31603: object “tab_old1” of type TABLE not found in schema “Schema” 

ORA-31693: Table data object "Schema"."tab_old2" failed to load/unload and is being skipped due to error:
ORA-31603: object “tab_old2” of type TABLE not found in schema “Schema”

视图名为tab_old1和tab_old2，但当然它们不是TABLE类型。

有什么想法吗？

如何从包含其他列的现有表格中的tab_old1导入数据？

我不想在第一步中导出/导入表，重命名它们，然后安装pl sqls程序。

你能帮帮我吗？

修改

感谢您的回答。我试过两次你的例子，但是remap_table函数对我不起作用。导入：版本11.1.0.6.0 - 64位生产。

编辑2： 是。这似乎是我的oracle版本的问题。 remap_table函数被忽略。我可以写像remap_table = not.existing / table这样的废话，并且impdp不会给它一些麻烦。好吧，我没有时间解决这个问题。我必须工作。无论如何，谢谢你的帮助。

Answer 1

好的，所以你要用content = data_only导入，你已经将tab_old1重命名为tab_new1并添加了几列？

指定import put remap_table = tab_old1：tab_new1

只要新列可以为空，这将起作用。

例如：

SQL> create table foo(id number);

Table created.

SQL> insert into foo select rownum from dual connect by level <= 5;

5 rows created.

SQL> commit;

Commit complete.

SQL> host expdp test/test tables=foo directory=data_pump_dir

Export: Release 11.2.0.2.0 - Production on Thu Nov 8 15:40:18 2012

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Starting "TEST"."SYS_EXPORT_TABLE_01":  test/******** tables=foo directory=data_pump_dir 
Estimate in progress using BLOCKS method...
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 64 KB
Processing object type TABLE_EXPORT/TABLE/TABLE
. . exported "TEST"."FOO"                                5.031 KB       5 rows
Master table "TEST"."SYS_EXPORT_TABLE_01" successfully loaded/unloaded
******************************************************************************
Dump file set for TEST.SYS_EXPORT_TABLE_01 is:
  /u01/app/oracle/admin/dtd64bit1/dpdump/expdat.dmp
Job "TEST"."SYS_EXPORT_TABLE_01" successfully completed at 15:40:30

SQL> delete from foo;

5 rows deleted.

SQL> alter table foo add (a varchar2(200));

Table altered.

SQL> alter table foo rename to foo2;

Table altered.

和您的原始错误？

SQL> host impdp test/test tables=foo directory=data_pump_dir content=data_only

Import: Release 11.2.0.2.0 - Production on Thu Nov 8 15:42:17 2012

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Master table "TEST"."SYS_IMPORT_TABLE_01" successfully loaded/unloaded
Starting "TEST"."SYS_IMPORT_TABLE_01":  test/******** tables=foo directory=data_pump_dir content=data_only 
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
ORA-39034: Table TABLE_DATA:"TEST"."FOO" does not exist.
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.UPATE_TD_ROW_IMP [15] 
TABLE_DATA:"TEST"."FOO"
ORA-31603: object "FOO" of type TABLE not found in schema "TEST"

ORA-06512: at "SYS.DBMS_SYS_ERROR", line 105
ORA-06512: at "SYS.KUPW$WORKER", line 8641

所以重新映射..

SQL> host impdp test/test tables=foo remap_table=foo:foo2 directory=data_pump_dir content=data_only

Import: Release 11.2.0.2.0 - Production on Thu Nov 8 15:42:33 2012

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Master table "TEST"."SYS_IMPORT_TABLE_02" successfully loaded/unloaded
Starting "TEST"."SYS_IMPORT_TABLE_02":  test/******** tables=foo remap_table=foo:foo2 directory=data_pump_dir content=data_only 
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "TEST"."FOO2"                               5.031 KB       5 rows
Job "TEST"."SYS_IMPORT_TABLE_02" successfully completed at 15:42:37


SQL> select * from foo2;

ID     A
---------- ----------
     1
     2
     3
     4
     5

Oracle数据泵导入到现有表中

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