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    PostgreSQL

    psql: FATAL: database “root” does not exist

    If you are new to postgres database, you might face following error while logging in to the psql. Error: psql: FATAL: database "root" does not exist CAUSE: A...
    Marjina Khatun -
    PostgreSQL

    Error: psql: could not connect to server: Connection refused Is the server running on host “X.X.X.X” and accepting TCP/IP connections on port 5432?

    Many a times you will find that following error is showing while connecting to the postgres server from a different host/IP. Error: psql: could not...
    Marjina Khatun -
    PostgreSQL

    Error: psql: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket...

    While connecting to Postgres Database from any client we often face of not able to connect to the database server with following error. Error: psql: could...
    Marjina Khatun -
    Oracle DB

    All about Oracle Database 21c newly introduced features

    Oracle has announced around 200 new innovations in Oracle Database 21c on 13th Jan, 2021. This database version is readily available in Oracle Cloud....
    Marjina Khatun -
    Oracle DB

    Data Pump Export Fails With ORA-31693 ORA-02354 and ORA-01555 Errors And No LOB Corruption

    While exporting a LOB table, we often face issue of undo_retention as follows. ORA-31693: Table data object ""."" failed to load/unload and is being...
    Marjina Khatun -
    PostgreSQL

    PostgreSQL Administration Commands – (Version 9,10,11,12,13)-Part3 (Monitoring Disk Usage)

    Each table has a primary heap disk file where most of the data is stored. If the table has any columns with potentially-wide values,...
    Marjina Khatun -
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