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QMYSQL driver not loaded - again?...

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  • mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by mrjj
    #2

    Hi
    If the database server is on other computer then
    db.setHostName("localhost");
    should be ip or name of that server as far as I know.
    localhost cannot be "other" pc.
    Also note the port 3306.
    Might be blocked by windows firewall.

    1 Reply Last reply
    0
    • M Offline
      M Offline
      mr__710
      wrote on last edited by
      #3

      okay, but this is not the problem, i think.

      I read of copying files like libmysql.dll and so on,
      but i do not understand what i exactly have to do :/

      mrjjM 1 Reply Last reply
      0
      • M mr__710

        okay, but this is not the problem, i think.

        I read of copying files like libmysql.dll and so on,
        but i do not understand what i exactly have to do :/

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by mrjj
        #4

        @mr__710
        well does it still work to load database from own pc?

        did u read this ?
        https://forum.qt.io/topic/25638/qsqldatabase-qmysql-driver-not-loaded-why

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        • M Offline
          M Offline
          mr__710
          wrote on last edited by
          #5

          with data.db on my pc it worked.

          db = QSqlDatabase::addDatabase("QSQLITE");
          db.setDatabaseName("C:/sqlite/data.db");
          

          this was no problem.

          mrjjM 1 Reply Last reply
          0
          • M mr__710

            with data.db on my pc it worked.

            db = QSqlDatabase::addDatabase("QSQLITE");
            db.setDatabaseName("C:/sqlite/data.db");
            

            this was no problem.

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #6

            @mr__710 said

            ok, so now you will use
            QMYSQL
            and you did install MYSQL on your pc and copied the DLL so qt can use it ?
            and you must also use
            IP in db.setHostName
            if the database is on other pc.

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            • M Offline
              M Offline
              mr__710
              wrote on last edited by
              #7

              I installed MYSQL to c://MySql.
              What files do i have to copy and in which folder of QTdir?

              mrjjM 1 Reply Last reply
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              • M mr__710

                I installed MYSQL to c://MySql.
                What files do i have to copy and in which folder of QTdir?

                mrjjM Offline
                mrjjM Offline
                mrjj
                Lifetime Qt Champion
                wrote on last edited by
                #8

                it depends on your qt version but this for 5
                http://seppemagiels.com/blog/create-mysql-driver-qt5-windows
                Step 5

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                • M Offline
                  M Offline
                  mr__710
                  wrote on last edited by
                  #9

                  Perfect, with mingw it works now.
                  Unfortunately i have to compile it on android with armeabi-v7.

                  There i get errors again, what do i have to change?

                  mrjjM 1 Reply Last reply
                  0
                  • M mr__710

                    Perfect, with mingw it works now.
                    Unfortunately i have to compile it on android with armeabi-v7.

                    There i get errors again, what do i have to change?

                    mrjjM Offline
                    mrjjM Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on last edited by
                    #10

                    @mr__710 ¨
                    uhh, sorry. I have no idea about android.
                    Maybe open new topic with errors from android building?

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                    • M Offline
                      M Offline
                      mr__710
                      wrote on last edited by mr__710
                      #11

                      ok, thank you so far.

                      If someone wants to help: http://forum.qt.io/topic/61141/mysql-database-connection-mingw-yes-android-no

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