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Update/Index Issue

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  • Update/Index Issue

    Hi everyone

    I'm needing help on a weird issue.
    I have 9 identical tables linked as line item tables to a parent. I have a field rule for the "Unit_Price" field as follows:


    Where if the user picks the "buyout" item from a lookup table, it uses the "total_price" from the previous item in the table to determine the "total_price" for this line item as a percentage of the previous line item's "total_price"

    All works well in the child tables with the exception of tables 3 and 4, it leaves the "total_price" field blank.

    I also have this equation as an update operation which is on a button so if they make changes it will update the child tables, again all works well except tables 3 and 4. When the operation is run I get the error message "Error running update operation: Not an open Index"

    Again all 9 child tables are identical and the field rule and operations work fine for the other tables.

    I'm sure I'm missing something but for the life of me I can't see it.

    I would appreciate if someone could point me in the right direction


  • #2
    Re: Update/Index Issue

    Suggestion 1.
    Copy one of the working tables over one of the non- working ones and see what happens.
    Suggestion 2.
    Check the linking is exactly the same in the set.

    Question. Why 9 linked tables all the same? Just curious.
    See our Hybrid Option here;

    If at first you don't succeed; call it Version 1.0


    • #3
      Re: Update/Index Issue

      Hi Ted,

      The reason for the 9 identical tables is my customer uses it to do his quoting, he has 9 parts for each quote he makes. Seems a lot I know but that's how he wanted it to look.

      I've checked the set structure/linking and all is good.

      I haven't copied over the tables yet but that's my next move, thx for the suggestion.

      Strangely, table 3 seems to be working now, yet I haven't done anything to it (besides using harsh language!)

      Furthermore, when I check the expression in the field rule in table 4 it's giving me "Invalid or incomplete expression" but it's exactly the same expression in the other table's field rules.


      • #4
        Re: Update/Index Issue

        OK so I've stepped into the Twilight Zone....

        In all the table's field rules the expression is:


        Which works except table 4

        I changed table 4 to read:


        And it works

        Can someone explain this to me?



        • #5
          Re: Update/Index Issue

          If you change the expression to


          does it still work? If so I would change all to that.
          There can be only one.


          • #6
            Re: Update/Index Issue

            You have encountered or are exploring the world of unprintable characters I suspect.
            The _ might well throw a wobbly as Stan noticed.
            See our Hybrid Option here;

            If at first you don't succeed; call it Version 1.0


            • #7
              Re: Update/Index Issue

              Hi Guys,

              Making the changes Stan mentioned had no effect, but I checked a previous copy of the application and found tables 3 and 4 had the field rule expression:


              Now I know I'm not making these changes, nor is my customer, so the question now is how are these changes to the field rules happening?

              Also, in all of the other tables they have two indexes:
              Index name: Sales_or, Order Expression: Sales_or
              Index name: __A%_Recor, Order Expression: RECNO()

              In tables 3 and 4 the __A5_Recor index has disappeared.

              I'll admit, I'm no expert with alpha but I'm pretty sure indexes shouldn't just disappear nor should field rules change on their own so can someone explain what has happened?

              Thanks for your help




              • #8
                Re: Update/Index Issue

                Could easily be an index issue.
                The rules are essentially 8 char for an index starting with a char in the name. The index names you mention are created by AS. Build your own.
                There is a finite number of indices with the same name which can be used.
                See our Hybrid Option here;

                If at first you don't succeed; call it Version 1.0


                • #9
                  Re: Update/Index Issue

                  create your own index and do not rely on the alpha generated index. You may find life much simpler.
                  You can create an index with any name and base it on record number.
                  The one created by alpha is for their own internal use as I understand it.
                  Dave Mason
                  [email protected]
                  Skype is dave.mason46


                  • #10
                    Re: Update/Index Issue

                    Indexes generally disappear when the expression indexed and/or filter cannot be evaluated. Not sure what you mean by making the change I suggested had no effect. Did it work with that expression or not? If not create your own index with the expression recno(), name it, and use that in the lookup().

                    Some time in the past Alpha introduced a generically named index that replaced <record_number_order> which was the default. You are experiencing some issue related to that.
                    There can be only one.


                    • #11
                      Re: Update/Index Issue

                      Hi guys,

                      Thanks for the input from everyone, I was relying on alpha generating the record number indexes, when they disappeared on tables 3&4, everything went south. My bad for doing that. Proof again, I'm not the smartest person in the room...



                      • #12
                        Re: Update/Index Issue

                        Looking at the documentation for previous() it would seem that you don't need to name the index in your implementation. You should only need to use that parameter if the current primary index has been set to something other than record number order for some reason. It is generally safer to include the index name parameter, of course, but optional.
                        There can be only one.


                        • #13
                          Re: Update/Index Issue

                          Hi Stan,

                          Thx for the input, I tried getting previous() to work without naming the index but it didn't work, probably because I'm using it on a child table in a set (?).

                          But of course I've come to more difficulties with this issue:

                          I deleted the alpha generated indexes __A5_RECOR, __A5_RECNO, and __A5_RECORD in all the tables and I created an index RecNum set to RECNO() as the expression, changed the field rules and the operations set to that index. All works great with the exception of table 4. For whatever reason table 4 did not have any of the alpha created indexes and would not allow me to create the RecNum index. I compacted the workspace a dozen times to no avail. Finally i copied the records from table 4 to a temp table, wiped table 4 clean compacted the workspace, created the RecNum index then moved all the records back into table 4 from the temp table. That finally worked. Whew!

                          Question is why would table 4 display such odd behavior being that all the tables are identical.

                          Again, thx for your help



                          • #14
                            Re: Update/Index Issue

                            Generally garbage data would cause that. Maybe something from a copy-paste into a field that didn't get recreated with the empty and append.
                            There can be only one.