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network question 2

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  • network question 2

    I have two work stations looking at the same record.

    Work station 1 invoke's the change mode. Work station 2 try's to envoke the change mode. After pressing the "C" key, nothing happens and there is no warning message.

    After work station 1 save's it's changes, work station 2 then goes into change mode.

    Is this normal or is something wrong.
    Alpha Anywhere v3.5
    Version 12.3, Build 2999
    MySql56 & DBF's

    Alpha 4, 5, Anywhere

    Ron Anusiewicz

  • #2
    RE: network question 2

    I would say that both question 1 and 2 are normal conditions. (1) You must have exclusive use of a database in order to pack, and if someone else has that database open, you do not have exclusive use. (2) Two people can't change the same record at the same time. Another can view while you're in change mode however.


    • #3
      RE: network question 2

      Hi Ron,
      If you think about it this makes sence. If 2 people could change or enter the same record at the same time you could end up with some pretty strange data. For example if 2 people change prices at the same time someones data will not be saved. To prevent this the record (record only) is locked until it is saved. On a network you shuold get a locking error message indicating that the record is in use. We do on our network. As soon as the person changing the record saves it the locking message goes away and it is available for another user.
      This is different than the locking required for packing. This requires exclusive use of the DBF (not just the record).



      • #4
        RE: network question 2

        To Russ:

        You say "...For example if 2 people change prices at the same time someone's data will not be saved..." I think that both changes will be saved in succession.

        For example: I've tested to users simultaneously starting a new invoice - each with the same invoice number. When the users have pressed [F10] to save, the first 'saver' gets the screened invoice number and the second user gets the next invoice number applied in sequence. That is... both records are saved and no error-locking messages are displayed. It is for this reason that a 'change' could well be handled the same way.

        Make sense?