如何更改 Oracle 默认数据泵目录以导入转储文件？

Question

我正在使用 impdp 导入备份。但我想更改默认目录转储文件。

$ impdp system/password@$ORACLE_SID schemas=USER_SCHEMA dumpfile=mydumpfile.dmp logfile=impdpmydumpfile.log

Import: Release 11.2.0.3.0 - Production on Mon Mar 16 09:32:05 2015

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

Connected to: Oracle Database 11g Release 11.2.0.3.0 - 64bit Production
ORA-39001: invalid argument value
ORA-39000: bad dump file specification
ORA-31640: unable to open dump file "/u01/app/oracle/admin/mydatabase/dpdump/mydumpfile.dmp" for read
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3

Answer 1

使用 DIRECTORY 选项。

此处的文档： http://docs.oracle.com/cd/E11882_01/server.112/e22490/dp_import.htm#SUTIL907

  DIRECTORY

  Default: DATA_PUMP_DIR

  Purpose

  Specifies the default location in which the import job can find the dump file set and where it should create log and SQL files.

  Syntax and Description

  DIRECTORY=directory_object
  The directory_object is the name of a database directory object (not the file path of an actual directory). Upon installation, privileged users have access to a default directory object named DATA_PUMP_DIR. Users with access to the default DATA_PUMP_DIR directory object do not need to use the DIRECTORY parameter at all.

  A directory object specified on the DUMPFILE, LOGFILE, or SQLFILE parameter overrides any directory object that you specify for the DIRECTORY parameter. You must have Read access to the directory used for the dump file set and Write access to the directory used to create the log and SQL files.

  Example

  The following is an example of using the DIRECTORY parameter. You can create the expfull.dmp dump file used in this example by running the example provided for the Export FULL parameter. See "FULL".

  > impdp hr DIRECTORY=dpump_dir1 DUMPFILE=expfull.dmp 
  LOGFILE=dpump_dir2:expfull.log
  This command results in the import job looking for the expfull.dmp dump file in the directory pointed to by the dpump_dir1 directory object. The dpump_dir2 directory object specified on the LOGFILE parameter overrides the DIRECTORY parameter so that the log file is written to dpump_dir2.

Answer 2

与the directory parameter:

impdp system/password@$ORACLE_SID schemas=USER_SCHEMA directory=MY_DIR \
  dumpfile=mydumpfile.dmp logfile=impdpmydumpfile.log

default directory 是 DATA_PUMP_DIR，这可能在您的系统上设置为 /u01/app/oracle/admin/mydatabase/dpdump。

要使用不同的目录，您（或您的 DBA）必须在数据库中 create a new directory object，它指向您将文件放入的 Oracle 可见操作系统目录，并为用户分配权限正在导入。

Answer 3

I want change default directory dumpfile.

您可以创建一个新目录并赋予它所需的权限，例如：

SQL> CREATE DIRECTORY dmpdir AS '/opt/oracle';
Directory created.

SQL> GRANT read, write ON DIRECTORY dmpdir TO scott;
Grant succeeded.

要使用新创建的目录，只需将其添加为参数即可：

DIRECTORY=dmpdir

Oracle 从 10g R2 引入了一个默认目录，名为 DATA_PUMP_DIR，可以使用。要检查位置，您可以查看 dba_directories:

SQL> select DIRECTORY_NAME, DIRECTORY_PATH from dba_directories where DIRECTORY_NAME = 'DATA_PUMP_DIR';

DIRECTORY_NAME       DIRECTORY_PATH
-------------------- --------------------------------------------------
DATA_PUMP_DIR        C:\app\Lalit/admin/orcl/dpdump/

SQL>

Answer 4

您可以使用以下命令更新数据泵目录路径，

create or replace directory DATA_PUMP_DIR as '/u01/app/oracle/admin/MYDB/dpdump/';

对我来说，需要更正数据路径，因为我已将数据库从生产环境恢复到测试环境。

可以使用相同的命令创建新的 DATA PUMP DIRECTORY name 和 path.

如何更改 Oracle 默认数据泵目录以导入转储文件？

How to change Oracle default data pump directory to import dumpfile?

database

oracle

impdp