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Check if there are Database Tables In Use

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    Check if there are Database Tables In Use

    I have posted the following function for use by the Alpha Five community

    Function Name: check_files_in_use()

    This function will return True if there are any tables in use by any users in any sessions. This is instead of table.enum_open_files() which will only show shat files are in use for the current user. To use this function copy the attachment and save as a function called "Check_files_in_use" in your code tab.

    Example:

    if check_files_in_use then
    ui_msg_box ("Notice","Ther are files in use"
    end if

    You may also call the function as follows

    check_files_in_use ("Dialog Title")

    Which will display the files which are in use as a dialog box with the title you have nominated as "Dialog Title")

    eg: check_files_in_use ("These Tables are In Use")

    Enjoy,

    Mike Thomson
    Mike Thomson

    #2
    RE: Check if there are Database Tables In Use

    Note:

    I introduced a problem when I pasted function
    The first line of function should read:-

    function Check_files_in_use as L (sOption="NOSHOW")

    not

    function Check_files_in_use as C (sOption="NOSHOW")

    I have also added a new option to this script so you can pass it a message to appear within the dialog

    eg: check_files_in_use ("FILES IN USE","Cannot Proceed!;Please have all users log out and try again;The following Files are In Use:-;")

    Please note: The second option follows xdialog rules, so be sure to put a semi colon (;) after each message line

    I have attached the upgrade function here

    Mike
    Mike Thomson

    Comment


      #3
      Is there way to find out which users have file open?

      The reason I am asking is that in my dos database world I could not do a backup of the database if files were in use and had to resort to a combination of creating a files open list and another list of ip addresses which we then used to find which user left database open.

      Or, are open files not an issue in doing a backup in Alpha5?

      Comment


        #4
        Mike,

        Your function is defined to return Character type, but in fact returns Logical type. Also there is a function
        compile_filename_in_use(sFileName)
        that is not an Alpha A5 function. Is there something else you wanted to include?:)
        Regards,

        Ira J. Perlow
        Computer Systems Design


        CSDA A5 Products
        New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
        CSDA Barcode Functions

        CSDA Code Utility
        CSDA Screen Capture


        Comment


          #5
          Correction

          Thanks Ian - I did not supply the correct file
          Here it is
          Please note: The compile_filename_in_use is a UDF , wrapped up with this function. Just save entire script with a file name of check_files_in_use
          Mike Thomson

          Comment


            #6
            Originally posted by Mike Thomson
            Thanks Ian
            Whose "Ian"?:)
            Regards,

            Ira J. Perlow
            Computer Systems Design


            CSDA A5 Products
            New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
            CSDA Barcode Functions

            CSDA Code Utility
            CSDA Screen Capture


            Comment


              #7
              Originally posted by csda1
              Whose "Ian"?:)
              Ira,

              I swear I have read this Ian... whose Ian? before on the MB. Does this happen often to you, Ira?

              Mike W
              Mike W
              __________________________
              "I rebel in at least small things to express to the world that I have not completely surrendered"

              Comment


                #8
                Appologies

                My apologies for the typo, Ira
                Mike Thomson

                Comment


                  #9
                  Mike W. - More times than I'd think should happen. However there is no world-famous Ira to popularize the name!

                  Mike T. - Not a problem. I just didn't want to have to go to the courthouse and legally change my name to Ian or to "Alpha Developer formerly known as Ira":D
                  Regards,

                  Ira J. Perlow
                  Computer Systems Design


                  CSDA A5 Products
                  New - Free CSDA DiagInfo - v1.39, 30 Apr 2013
                  CSDA Barcode Functions

                  CSDA Code Utility
                  CSDA Screen Capture


                  Comment

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