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alpha query question

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  • alpha query question

    I have a form that is opened, with the form set to filter on one parent, and the child (embedded browse) filtered on paid=.f.
    The first time it opens, after closing the program and reopenig it, it takes a long time to open - BUT after that it opens almost instantly.

    I am thinking that Alpha is using a $$$ query it makes to open it a second time - how would I find Alpha's query, if that is the case?
    Cole Custom Programming - Terrell, Texas
    972 524 8714
    [email protected]

    ____________________
    "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

  • #2
    Re: alpha query question

    Martin,

    I have noticed that simply opening the default browse for a table that hasn't been opened in a form or browse for some time causes Alpha (V11) to perform some internal processing and display the progress bar before the layout will open.

    I just experimented with a table I know to be slow opening at times. Before opening the browse I issued

    tbl = table.open("cost")
    tbl.QUERY_DETACH_ALL()
    tbl.close()

    from the interactive.

    Didn't seem to make a difference, still slow. Closing and reopening the browse was nearly instantaneous.
    Completely deleting the registry INDX and Table keys didn't help either.

    Maybe Alpha's checking the indexes?
    There can be only one.

    Comment


    • #3
      Re: alpha query question

      Same issue here and longer when on a runtime over network.
      It seems it does run through the indexes on first open.

      That did not seem to be as slow with v7-v8 on winXP as it is with v11 up and win7-win8

      If anybody comes up with a way around this, I would be super interested.
      Dave Mason
      [email protected]
      Skype is dave.mason46

      Comment


      • #4
        Re: alpha query question

        I checked a large table without any indexes and the opening was still slow. ~200,000 records and I saw the progress bar. Maybe it's the record number index being updated but packing before opening a layout doesn't help.
        There can be only one.

        Comment


        • #5
          Re: alpha query question

          I have one that is 950,000 records and it is probably a lot slower and Yes it probably is as Stan thinks although I get several since I have several indexes.
          Dave Mason
          [email protected]
          Skype is dave.mason46

          Comment


          • #6
            Re: alpha query question

            this is my last 4.5 customer (since about 2000)
            on 4.5 and xp was not an issue, but on v12 and w7 it is.
            Since it only occurs the first time, I'm betting Alpha made a temporary query - if may be a flatenquery
            I i could see it it I might be able to use it!
            Cole Custom Programming - Terrell, Texas
            972 524 8714
            [email protected]

            ____________________
            "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

            Comment


            • #7
              Re: alpha query question

              Well .... I came up with an acceptable solution. In my case, on a form, there is a parent and related children in an embedded browse - like an invoice. The entire child table only has maybe 8500 records. The child table is filtered on the parent, of course, but also on paid=.f.

              The behavior was that after opening the app, and opening that form, the first time it opened took an unacceptable length of time. But the second and subsequent openings were almost instant. I got Finian Lennon involved, and we tried everything - flattenquerry, different indexes, etc. - to no avail.

              So ... to the tale, I duplicated the child table with a different name, created a set for it, copied the form to the new set, created an append to only copy records where paid=.f. and the contractid's matched. Wallah!! It works like a charm, although I had to change a lot of code when writing the records.
              Cole Custom Programming - Terrell, Texas
              972 524 8714
              [email protected]

              ____________________
              "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

              Comment


              • #8
                Re: alpha query question

                I got Finian Lennon involved
                Desperate, huh?
                There can be only one.

                Comment


                • #9
                  Re: alpha query question

                  Did you try an xdialog embedded browse? I wonder if that would have made a difference...
                  Robin

                  Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

                  Comment


                  • #10
                    Re: alpha query question

                    I'm not that good at creating complicated xdialogs. And since it now runs almost instantly every time, including after closing and reopening the app, I put it to bed. The app was originally put together in 4.03 in maybe 1999 or 2000. And since I have not had this issue before, even where there are forms with embedded browses with maybe 20,000 or so records (in other apps), it may be related to something lingering from 4.03.
                    Cole Custom Programming - Terrell, Texas
                    972 524 8714
                    [email protected]

                    ____________________
                    "A young man who is not liberal has no heart, but an old man who is not conservative has no mind." GB Shaw

                    Comment


                    • #11
                      Re: alpha query question

                      I suppose it might depend on what you want to do once the records are displayed...get a total perhaps? The Report preview supercontrol is also handy for that. And you can add links to a field to view another report or form - just like a double click on a browse.
                      Robin

                      Discernment is not needed in things that differ, but in those things that appear to be the same. - Miles Sanford

                      Comment

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