Backup exsiting data and load data dump into Database

Export current data dump as a backup.

   Method 1: Use utility exp

  • Login to the Database Server.
  • Start a windows command prompt, click on Start > Run
  • Type in cmd in the dialog box and click on OK.
  • Change directory to the root C:\ >

Type in the following command:

exp <user_toexport>/<user_toexport_password>

file=<directory>\dumpFileName.dmp log=<directory>\logFileName.log owner=<to_user> buffer=10000

Press [Enter]

The backup dump file will be found in the directory you specified.

For example: the following command is to export sample data from SAMPLE database:

exp sample/sample file=C:\sample.dmp log=C:\sample.log owner=sample buffer=100000

   Method 2: using Data Pump expdp

  • Login to the Database Server.
  • Start a windows command prompt, click on Start > Run
  • Type in cmd in the dialog box and click on OK.
  • Type in the following command to connect to the SAMPLE database

SQLPLUS system/<system password>

Press [Enter]

e.g. SQLPLUS system/<system password>

Execute the following commands to create a database directory. This directory must point to a valid directory on the same server as the database:

SQL> CREATE or REPLACE DIRECTORY <directory_name> AS ‘<directory\folder>\‘;

Directory created.

SQL> GRANT READ, WRITE on directory <directory_name> to <user_toexport>/

e.g.  CREATE or REPLACE DIRECTORY imp_dir as ‘D:\db_dump’;

GRANT READ, WRITE on directory imp_dir to bisbtm;

·         Create a folder under directory

·         Type in the following command:

expdp <user_toexport>/<user_toexport_password>

directory=< directory_name> dumpfile=dumpFileNam.dmp 

e.g. expdp sample/sample directory=imp_dir dumpfile=samp.dmp

Press [Enter]

The backup dump file will be found in the directory you specified.

To be continued….

         

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