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Compound Index Error

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  • Compound Index Error

    I have been running the same application for years and this is the first time I have seen a error message when trying to open a dbf file. I was trying to open this file because it is no longer showing a drop down list when I click a form location for that particular dbf. This function is fine for other dbf's but not the one. The dbf name in Mon.dbf. It is part of a set that a calendar is built on which contains a header file, cal_hdr.dbf, and links to the days; Sun.dbf, Mon.dbf, Tue.dbf, Wed.dbf, Thu.dbf, Fri.dbf and Sat.dbf. Go figure! They all have the same link.

    Anyone know what may have caused this error to just show up and more importantly, how to correct it?



  • #2
    Re: Compound Index Error

    I had an issue where the posting didn't go to script.Suggest you compact and try again.
    It fixed my issue.
    Ted Giles
    Example Consulting - UK

    See our site for Alpha Support, Conversion and Upgrade.


    • #3
      Re: Compound Index Error

      Thanks for the suggestion Ted. When trying to pack Mon.dbf, an error message is returned. Could not Pack or Rebuild indexes for mon.dbf Dictionary.


      • #4
        Re: Compound Index Error

        Gene, it may be helpful if you were to post the complete error message.

        Is this running on a stand alone machine, or over a network?

        Do all workstations encounter the same error?

        If you close alpha on all workstations except the one containing the developer version, can you rebuild indexes for this table from the control panel?

        If not you may have a corrupted table on your hands, in which case Alpha can't sort the records using your index tag definitions.

        Does this table contain memo field data by any chance?


        • #5
          Re: Compound Index Error

          Hi Tom.

          This is a stand alone PC running Windows 10. This machine has the developer version. No memo fields.

          I think that answers the questions. It appears that I am going to have to recreate everything that is based on Mon.dbf. Gulp!

          Well, it's a long weekend.

          Is it possible to identify all A5 files that pertain to Mon.dbf so that I could do a restore without those? Or are things intertwined in A5 such that I can expect to lose my data?



          • #6
            Re: Compound Index Error

            Gene, I would copy the entire project to a separate directory and do the experimenting in the new directory.
            The other thing I would do is start looking through recent backups to get the latest working version.
            Gregg Schmidt


            • #7
              Re: Compound Index Error

              To all concerned, I have it working again by being somewhat creative. Here are the steps I took. If anyone can shoot a hole in this plan, please let us know.

              1. Copy the directory that has my application to a safe directory
              2. Open the application and create a new dbf (I called it Monday)
              3. Write a short program to copy the contents of Mon to Monday
              4. Close A5 and working in Windows, change the name of every corrupt file (in this case, Mon.CDX .DBF .DDD .DDM and .DDX) to xMon.CDK etc.
              5. Rename every Monday file to Mon
              6. Open the application.
              Something curious happened here. A5 was looking for Monday.dbf! So I changed the name of the original Mon.dbf (not the other extensions) from xMon.dbf to Monday.dbf
              I wonder what behind the scenes is looking for Monday.dbf and apparently not any other extensions??
              Anyway, the application opened just fine with no apparent problems after putting the useless Monday.dbf in the directory.
              7. Update the field rules for the new Mon.dbf.

              Everything seems to function fine and I lost no data!

              Creativity, creativity, creativity!



              • #8
                Re: Compound Index Error


                I like Gregg's idea of creating a separate directory and experimenting there first.

                If the table is corrupted that does not necessarily mean the related dictionaries are corrupted also. The DDM, DDD, and DDX files for the table contain your field rules, forms, reports, etc. Maybe they're not corrupt and its only your "data" that is misbehaving.

                The first thing I'd try in my "sandbox" experimental directory would be to simply copy in a good backup copy of the DBF and CDX files for the table. Then test to see if it works correctly, wherever the table is used in your application.

                LATER EDIT to this post: I see now that you have it working. Not sure I understand all that you did but I'm glad you succeeded.

                -- tom
                Last edited by Tom Cone Jr; 04-03-2020, 09:22 PM. Reason: Cross-posted with Gene.


                • #9
                  Re: Compound Index Error

                  Always nice to see something work the way we hope it will.
                  Gregg Schmidt