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  • Oracle Data Pump Export Fails with ORA-31642

    Oracle Data Pump Export Fails with ORA-31642

    19 Sep 2026 01:37

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    by

    Osman DİNÇ
    Backup, Databases, Oracle

    The post discusses an error encountered during a Data Pump export from an Oracle Database 19c, upgraded from 12c, specifically ORA-31642 and ORA-01031. Initially attributed to insufficient privileges, the problem was traced to lacking necessary rights. After granting required privileges and tablespace quotas, the export completed successfully.


  • POUG 2026

    Here is the wrap-up of POUG2026 (Pint With Oracle User Group).

    7 Sep 2026 02:46

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    by

    Osman DİNÇ
    Databases, Oracle

    The conference featured technical sessions with insights from various experts. Highlights included direct ASM file access via NFS, effective use of SQL tracing for diagnosing contention, and practical applications of SQLcl and AutoUpgrade. Presentations also covered transitioning to SaaS, PostgreSQL for Oracle DBAs, and lots of many things all about Oracle. Overall, the event fostered valuable networking and knowledge sharing among database professionals.


  • rpmdb: DB_RUNRECOVERY Errors When Using dbaascli on Exacc

    rpmdb: DB_RUNRECOVERY Errors When Using dbaascli on Exacc

    18 Aug 2026 21:43

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    by

    Osman DİNÇ
    Databases, Exadata, Oracle

    To register a manually created database on Exacc using dbaascli, a DBNAME.ini file must be created first. A specific command may fail due to a corrupted RPM database under /var/lib/rpm, showing a standard RPM-related error. To resolve this, the RPM database needs to be rebuilt by backing up and removing stale files. After rebuilding, the registration command should succeed and generate the necessary cloud registration file.


  • ODA Patching Issue

    ODA Patching Issue: Resolving DCS-10045 and DCS-12013 Errors During DB Home Update

    15 Aug 2026 16:13

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    by

    Osman DİNÇ
    Databases, Exadata, Oracle

    During an Oracle Database Appliance (ODA) patching process, a validation error (DCS-10045) occurred due to the absence of ‘Running’ databases. Although a physical standby database was running, ODA’s dcsagent failed to recognize it. The issue was resolved by adding the database using the srvctl command, and fixing missing ASM directory paths allowed the patching to complete successfully.


  • register-database-fails-rman

    RMAN Register database for Catalog fails with ORA-01403

    27 Jul 2026 00:42

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    by

    Osman DİNÇ
    Backup, Databases, Oracle

    The RMAN database registration process encountered an error, specifically ORA-01403 (no data found), during its initial synchronization due to an existing restore point. Despite entering commands correctly, the registration failed because RMAN could not process the restore point metadata across the CDB. Upon identifying this issue through trace analysis, the restore point was deleted, allowing successful completion of the database registration process, highlighting the importance of internal procedures in troubleshooting.


  • expdp issue ora-48128

    ORA-48128: opening of a symbolic link is disallowed during Data Pump Export 

    26 Jul 2026 14:48

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    by

    Osman DİNÇ
    Backup, Databases, Oracle

    This post explains how a Data Pump export in an Oracle RAC environment failed with misleading errors, including ORA-48128, related to symbolic links and file access. The actual cause was an NFS-mounted Data Pump directory that was accessible from only one RAC node. Adding CLUSTER=N resolved the issue by keeping all Data Pump workers on the local instance. Alternatively, mounting the NFS filesystem on all RAC nodes also resolves the problem.


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