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  4. Why QSqlDatabase db QOCI very slow when QSqlQuery is calling next() function ?
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Why QSqlDatabase db QOCI very slow when QSqlQuery is calling next() function ?

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  • SGaistS SGaist

    Hi,

    Did you try to use the fix provided in bug report ?

    Everton FonsecaE Offline
    Everton FonsecaE Offline
    Everton Fonseca
    wrote on last edited by
    #4

    @SGaist no

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #5

      Then it might be a good idea to do so.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      Everton FonsecaE 2 Replies Last reply
      3
      • SGaistS SGaist

        Then it might be a good idea to do so.

        Everton FonsecaE Offline
        Everton FonsecaE Offline
        Everton Fonseca
        wrote on last edited by
        #6

        @SGaist ok

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        • SGaistS SGaist

          Then it might be a good idea to do so.

          Everton FonsecaE Offline
          Everton FonsecaE Offline
          Everton Fonseca
          wrote on last edited by
          #7

          @SGaist how can i do it?

          mrjjM 1 Reply Last reply
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          • Everton FonsecaE Everton Fonseca

            @SGaist how can i do it?

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

            @Everton-Fonseca
            HI
            The bug comments says
            "Resolution: This issue was resolved by set OCI_ATTR_PREFETCH_ROWS and/or OCI_ATTR_PREFETCH_MEMORY parameter with SqlDatabase::setConnectOptions() function."

            so use
            https://doc.qt.io/qt-5/qsqldatabase.html#setConnectOptions

            and try with
            setConnectOptions("OCI_ATTR_PREFETCH_ROWS;OCI_ATTR_PREFETCH_MEMORY"

            Everton FonsecaE 1 Reply Last reply
            2
            • mrjjM mrjj

              @Everton-Fonseca
              HI
              The bug comments says
              "Resolution: This issue was resolved by set OCI_ATTR_PREFETCH_ROWS and/or OCI_ATTR_PREFETCH_MEMORY parameter with SqlDatabase::setConnectOptions() function."

              so use
              https://doc.qt.io/qt-5/qsqldatabase.html#setConnectOptions

              and try with
              setConnectOptions("OCI_ATTR_PREFETCH_ROWS;OCI_ATTR_PREFETCH_MEMORY"

              Everton FonsecaE Offline
              Everton FonsecaE Offline
              Everton Fonseca
              wrote on last edited by
              #9

              @mrjj I did it

              mrjjM 1 Reply Last reply
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              • Everton FonsecaE Everton Fonseca

                @mrjj I did it

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

                @Everton-Fonseca
                and did it help ?

                Everton FonsecaE 2 Replies Last reply
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                • mrjjM mrjj

                  @Everton-Fonseca
                  and did it help ?

                  Everton FonsecaE Offline
                  Everton FonsecaE Offline
                  Everton Fonseca
                  wrote on last edited by
                  #11

                  @mrjj yet it isn't working

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                  • mrjjM mrjj

                    @Everton-Fonseca
                    and did it help ?

                    Everton FonsecaE Offline
                    Everton FonsecaE Offline
                    Everton Fonseca
                    wrote on last edited by
                    #12

                    @mrjj look at example db.setConnectOptions("OCI_ATTR_PREFETCH_ROWS=1000;OCI_ATTR_PREFETCH_MEMORY=1000");
                    it was before open database

                    mrjjM 1 Reply Last reply
                    0
                    • Everton FonsecaE Everton Fonseca

                      @mrjj look at example db.setConnectOptions("OCI_ATTR_PREFETCH_ROWS=1000;OCI_ATTR_PREFETCH_MEMORY=1000");
                      it was before open database

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #13

                      @Everton-Fonseca
                      ok. odd. the poster said it fixed it for him.
                      Other poster said ODBC worked better for him.

                      1 Reply Last reply
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