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QT MySQL Databese connect fail

Scheduled Pinned Locked Moved Solved General and Desktop
mysqldatabaseqt5.9.2c++localhost
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  • E Offline
    E Offline
    ELEMENTICY
    wrote on 9 Mar 2021, 04:31 last edited by
    #1

    Hello i got 11 error on connecting to sql server
    Please help
    this is my code

    QSqlDatabase db = QSqlDatabase::addDatabase("QMYSQL");
        db.setHostName("localhost");
        db.setDatabaseName("mysql");
        db.setUserName("root");
        db.setPassword("rootPW");
        bool connected = db.open();
    

    and this is the error
    Capture.PNG
    i dont know why is this happening,please help me.Thanks

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  • C Online
    C Online
    Christian Ehrlicher Lifetime Qt Champion
    wrote on 9 Mar 2021, 05:14 last edited by
    #3

    You forgot to link against the QtSql library.

    Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
    Visit the Qt Academy at https://academy.qt.io/catalog

    E 1 Reply Last reply 9 Mar 2021, 05:22
    2
  • E Offline
    E Offline
    ELEMENTICY
    wrote on 9 Mar 2021, 05:00 last edited by
    #2

    oops,sorry.My version of qt is 6.0.1

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  • C Online
    C Online
    Christian Ehrlicher Lifetime Qt Champion
    wrote on 9 Mar 2021, 05:14 last edited by
    #3

    You forgot to link against the QtSql library.

    Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
    Visit the Qt Academy at https://academy.qt.io/catalog

    E 1 Reply Last reply 9 Mar 2021, 05:22
    2
  • E Offline
    E Offline
    ELEMENTICY
    replied to Christian Ehrlicher on 9 Mar 2021, 05:22 last edited by
    #4

    @Christian-Ehrlicher yes,i just realize i forget to add sql to QT += core gui sql
    thanks for respone anyway

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