用expdp/impdp实现将数据从一个数据库导入另一个数据库

 

1、创建DIRECTORY (必须在数据库用户下创建目录)

 

sqlplus system/manager

create directory test_dir as '/home/orauat/zzj';

 

2、授权

 

Grant read,write on directory test_dir to cux;

 

--查看目录及权限

SELECT PRIVILEGE, DIRECTORY_NAME, DIRECTORY_PATH
  FROM USER_TAB_PRIVS T, ALL_DIRECTORIES D
 WHERE T.TABLE_NAME(+) = D.DIRECTORY_NAME
 ORDER BY 2, 1;

 

3、执行导出导入

 

su - orauat/orauat

expdp cux/cux TABLES=cux_expdp_test_table DUMPFILE=cux_expdp_test_table.dmp DIRECTORY=test_dir LOGFILE=cux_expdp_test_table.log

impdp cux/cux DIRECTORY=test_dir DUMPFILE=cux_expdp_test_table.dmp TABLE_EXISTS_ACTION=TRUNCATE LOGFILE=cux_expdp_test_table.log

 

例子：将UAT环境中表cux.cux_expdp_test_table中的数据导入到CRP2环境中；

 

一、从UAT环境中将数据导出：

 

1、创建DIRECTORY(必须在数据库用户下创建目录)

login: orauat
orauat's Password:

. . . . . .

$ sqlplus system/manager
SQL*Plus: Release 11.2.0.2.0 Production on Wed May 15 15:20:58 2013
Copyright (c) 1982, 2010, Oracle.  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
SQL> create directory test_dir as '/home/orauat/zzj';
Directory created.
SQL> Grant read,write on directory test_dir to cux;
Grant succeeded.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options
$ cd /home/orauat/zzj
$ expdp cux/cux TABLES=cux_expdp_test_table DUMPFILE=cux_expdp_test_table.dmp DIRECTORY=test_dir LOGFILE=cux_expdp_test_table.log
Export: Release 11.2.0.2.0 - Production on Wed May 15 15:06:12 2013
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 "CUX"."SYS_EXPORT_TABLE_01":  cux/******** TABLES=cux_expdp_test_table DUMPFILE=cux_expdp_test_table.dmp DIRECTORY=test_dir LOGFILE=cux_expdp_test_table.log 
Estimate in progress using BLOCKS method...
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 128 KB
Processing object type TABLE_EXPORT/TABLE/TABLE
. . exported "CUX"."CUX_EXPDP_TEST_TABLE"                5.460 KB       5 rows
Master table "CUX"."SYS_EXPORT_TABLE_01" successfully loaded/unloaded
******************************************************************************
Dump file set for CUX.SYS_EXPORT_TABLE_01 is:
  /export/home/orauat/zzj/cux_expdp_test_table.dmp
Job "CUX"."SYS_EXPORT_TABLE_01" successfully completed at 15:07:02
$ ls
cux_expdp_test_table.dmp      cux_expdp_test_table.log
$

 

2、将cux_expdp_test_table.dmp从/home/orauat/zzj目录下载下来，然后上传到CRP2环境的/home/oracrp2/zzj

 

 

二、将数据上传到CRP2环境：

1、创建DIRECTORY(必须在数据库用户下创建目录)

login: oracrp2
oracrp2's Password:

. . . 

$ sqlplus system/manager
SQL*Plus: Release 11.2.0.2.0 Production on Wed May 15 15:20:58 2013
Copyright (c) 1982, 2010, Oracle.  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
SQL> create directory test_dir as '/home/oracrp2/zzj';
Directory created.
SQL> Grant read,write on directory test_dir to cux;
Grant succeeded.
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options
$ cd /home/oracrp2/zzj
$ ls
cux_expdp_test_table.dmp
$ impdp cux/cux DIRECTORY=test_dir DUMPFILE=cux_expdp_test_table.dmp TABLE_EXISTS_ACTION=TRUNCATE LOGFILE=cux_expdp_test_table.log
Import: Release 11.2.0.2.0 - Production on Wed May 15 15:21:55 2013
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 "CUX"."SYS_IMPORT_FULL_01" successfully loaded/unloaded
Starting "CUX"."SYS_IMPORT_FULL_01":  cux/******** DIRECTORY=test_dir DUMPFILE=cux_expdp_test_table.dmp TABLE_EXISTS_ACTION=TRUNCATE LOGFILE=cux_expdp_test_table.log 
Processing object type TABLE_EXPORT/TABLE/TABLE
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
. . imported "CUX"."CUX_EXPDP_TEST_TABLE"                5.460 KB       5 rows
Job "CUX"."SYS_IMPORT_FULL_01" successfully completed at 15:22:22
$ ls
cux_expdp_test_table.dmp      cux_expdp_test_table.log
$