Few user backup is not coming with Export Data Pump command — oracle-tech

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Few user backup is not coming with Export Data Pump command

User_HZX9UUser_HZX9U Posts: 5 Newbie
edited January 8 in Secure Backup


I have used the below command to take full database backup

expdp 'username/password as sysdba' DIRECTORY=OracleDB_Backup  DUMPFILE=Oracle_DB_Backup"%date:~7,2%%date:~4,2%%date:~10,4%".dmp LOGFILE=log_Oracle_DB_Backup"%date:~7,2%%date:~4,2%%date:~10,4%".log full=y

All the database backup are coming properly.

But when I'm creating any new user and adding tables in it including data, and after that, I run this command so that the latest user backup is not coming.

Please let me know why I'm getting this issue and is there any possible solution for this.

Also, I have attached the log file below.


  • Sunny kichlooSunny kichloo Posts: 2,412 Gold Trophy

    If possible try to use system user to perform export and let us know if you are still facing the same issue.

  • User_HZX9UUser_HZX9U Posts: 5 Newbie

    I have tried with system credential, since my system password contains special characters such as @ sign. Can you tell me how to avoid expdp from misinterpreting my login string?

    Here is an example of what my login string looks like:

    expdp SYSTEM/[email protected]! DIRECTORY=OracleDB_Backup  DUMPFILE=Oracle_DB_Backup.dmp LOGFILE=log_Oracle_DB_Backup.log full=y

    When I run this above command I'm getting this error:

    Export: Release - Production on Fri Jan 8 02:30:07 2021

    Copyright (c) 1982, 2014, Oracle and/or its affiliates. All rights reserved.

    UDE-12154: operation generated ORACLE error 12154

    ORA-12154: TNS:could not resolve the connect identifier specified

  • User_HZX9UUser_HZX9U Posts: 5 Newbie


    Using the escape character in the password, I'm now able to run the export with the system user but still, I'm not getting the latest user backup.

    expdp SYSTEM/\"[email protected]!\"@orcl DIRECTORY=OracleDB_Backup  DUMPFILE=Oracle_DB_Backup"%date:~7,2%%date:~4,2%%date:~10,4%".dmp LOGFILE=log_Oracle_DB_Backup"%date:~7,2%%date:~4,2%%date:~10,4%".log full=y

    Below is the log file attached

    Please let me know if there is any other solution.

  • user4099183user4099183 Posts: 2 Blue Ribbon

    @User_HZX9U There is no error in the export log.

    Are only new users skipped from the export or are other schema also missing ?

  • User_HZX9UUser_HZX9U Posts: 5 Newbie

    Only new users are skipped from the export.

  • user4099183user4099183 Posts: 2 Blue Ribbon

    And if you connect with sqlplus

    sqlplus SYSTEM/\"[email protected]!\"@orcl

    select username,sum(bytes)/1024/1024/1024 as Gb,count(*) as NumberOfSeg from dba_segments group by username;

    you see the new schema and the sum of bytes and count of segments are as expected ?

  • Dieter E. HenigDieter E. Henig Posts: 7 Blue Ribbon

    please try


    or simply


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