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Active Link table Drops

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  • Active Link table Drops

    I have a simple Active Link table connected to a SQL 2012 table with 5 fields. I can read,write, run reports, etc but then out of the blue I cant access the table from the control panel. It has a question mark on it. if I run a sql query from alphas query genie it works fine but the table is useless untill i rebuild it and give it the same name.

  • #2
    Re: Active Link table Drops

    Alpha replaces the normal table icon with one including the question mark when it can't find the physical disk file, whether it be native dbf, passive, or active link. It would seem some process is deleting your active link definition.
    There can be only one.


    • #3
      Re: Active Link table Drops

      Understood. Whats really odd though is if I go to Alphas built in SQl query genie it will connect to the sql table and show records that I search for. So I know Alpha can see the sql table and access it but for whatever reason it cant be accessed anywhere else within alpha~


      • #4
        Re: Active Link table Drops

        Two different things entirely.

        The sql query genie uses the connection string you have defined to retrieve data from the sql table according to whatever parameters you supply. The active link table is a disk file containing infomation about how Alpha should communicate with (using that same connection string) and display data from that same table, more or less a static definiton of fields to retrieve.
        Last edited by Stan Mathews; 08-04-2014, 10:26 AM.
        There can be only one.


        • #5
          Re: Active Link table Drops

          Let me add to the mystery...This is in a controlled environment for testing purposes. All on my laptop. Not connected to any network. I added a passive link table with the same criteria and when the Active Link table is broken (for lack of better words), the passive link table can be refreshed and reports can be ran, data viewede, etc. with no troubles. Any ideas?


          • #6
            Re: Active Link table Drops

            What anti-virus are you using?

            It may not like something and moves the table to it's anti-virus chest.

            Check the logs to see if it happens.
            Al Buchholz
            Bookwood Systems, LTD
            Weekly QReportBuilder Webinars Thursday 1 pm CST

            Occam's Razor - KISS
            Normalize till it hurts - De-normalize till it works.
            Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
            When we triage a problem it is much easier to read sample systems than to read a mind.
            "Make it as simple as possible, but not simpler."
            Albert Einstein



            • #7
              Re: Active Link table Drops


              When this happens is the DBF file still present in the database directory? Check with Windows Explorer or your favorite file manager, outside of Alpha Five.

              Do you run any Alpha Five batch operations against this table?

              -- tom


              • #8
                Re: Active Link table Drops

                My AV is MS Security Essentials. No quarantines exist. To be safe I added the dbf table to an exclusion list. In doing so I saw that the dbf file is not in the windows directory but the others are..ddd, etc. There are no operations on this table. It just disappears!!


                • #9
                  Re: Active Link table Drops

                  You mention creating a passive link table based on the same sql source as the active link table. Are you naming both the same thing?
                  There can be only one.


                  • #10
                    Re: Active Link table Drops

                    No... Signatures.DBF is the Active Link table and SignaturespassiveLink.dbf is the passive Link table..


                    • #11
                      Re: Active Link table Drops

                      Are you running any of the following on you machine;
                      See our Hybrid Option here;

                      There are 3 things you can do in any situation;
                      Live with it, Change it or Walk away from it.


                      • #12
                        Re: Active Link table Drops

                        Skype and teamviewer are installed but not in use at the time. looking at task viewer, I dont see them running.


                        • #13
                          Re: Active Link table Drops

                          Look at the ports they use.
                          Port 80 is the default. Check and try another. There is an option for this in both.
                          See our Hybrid Option here;

                          There are 3 things you can do in any situation;
                          Live with it, Change it or Walk away from it.


                          • #14
                            Re: Active Link table Drops

                            Even though they (teamviewer and skype) arent running?
                            How does an alpha desktop app use a tcp or udp port? I didn't think of this...


                            • #15
                              Re: Active Link table Drops

                              If you edit your connection string you should see the port assignment next to the server name.
                              There can be only one.