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active link to big table (postgresql)

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    active link to big table (postgresql)

    I see an error in database explorer when trying to diaplay first rows of a big table.
    When using active-link connection I see just empty big table. absolutels empty.

    What''s this on the picture?
    Anybody recognise this error?
    postgres.jpg

    Here I try to fetch about 250 columns and about a million rows.
    When I limit the number of columns everything goes well.
    When I import this table via dbf utility it works again.

    But not via active-link or passive-link.
    Last edited by webzee; 08-03-2011, 03:36 PM.

    #2
    Re: active link to big table (postgresql)

    What is the reason your using active link, is the native support for Postgres not working correctly? did you try that?

    Comment


      #3
      Re: active link to big table (postgresql)

      Native support of PG? Never heard of it.
      PG is not in the list of natively supported DB, that's why I try ODBC.
      Where can I reed about native support?

      Comment


        #4
        Re: active link to big table (postgresql)

        From webprojects goto Edit-Manage connect options-Choose Alpha DAO -create new-- select PG option [make sure you client access driver is loaded and available to A5 <read wiki> before you connect

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          #5
          Re: active link to big table (postgresql)

          oh, I already have this connection string and use it.

          {A5API='ODBC',DataSource='postgres',A5Syntax='PostgreSQL'}

          it's almost the same as active link, because uses the same ODBC-connection and A5 conversion procedures.
          but the problem is not in the ODBC driver. I view the same table in access or OpenOffice fine.
          It's about A5 internal conversion procedures.

          Comment


            #6
            Re: active link to big table (postgresql)

            M.. that is not the purpose of Native connection like we have for Oracle/MySQL/MSSQLSERVER etc. I can't help you any further at the moment I am sorry to say.
            If there is no Native PG then connect AlphaSoftware directly. Before that if you have 250 columns in one table NO ODBC driver will support that, perhaps you can give more info on your table structure your SQL request, joins etc. Please try to make the SQL more simple to a table less then 250 columns lets say 50. If that works we know the handicaps

            Comment


              #7
              Re: active link to big table (postgresql)

              It is a very plain select, no joins.
              And this select works fine in OpenOffice base.

              Though I tried to browse the table via grid component. And it works. It doesn't only in windows application, like tables/forms etc.

              Thank you for help.

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