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Help with a calculated field

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    Help with a calculated field

    Hi

    I have been working on a report design for far too long and hope someone can help. The report has rows totaling the number of people booking a course and goes on to display how many people were mailed and calculates the response rate, but if no one booked the number mailed doesn't show, is there an expression that will display the amount mailed even if no one has booked.

    I have attached a zip file - the report is 'test_response_report2 and to run the report there is a saved query called 'mail_test'.

    Any help greatly appreciated.

    Judith
    Attached Files

    #2
    Re: Help with a calculated field

    Try the volume mailed expression as

    vol_mailed = case(calc->source="Customer",Mailshots->Cust_Vol,calc->source="Mint",Mailshots->Mint_Vol,.T.,0)
    There can be only one.

    Comment


      #3
      Re: Help with a calculated field

      Thanks Stan, I have just tried that but it still doesn't show the volume mailed where there hasn't been any bookings (dels_booked field). The figure for the bookings comes from the parent table and the volume mailed comes from the child table - does that cause complications?

      Comment


        #4
        Re: Help with a calculated field

        I've gotten confused.

        The report doesn't show the volume mailed if calc->dels_booked is zero? Or the report doesn't show the whole line for the data source if calc->dels_booked is zero.

        Can you provide a sample mailshots_ref where this is happening?
        There can be only one.

        Comment


          #5
          Re: Help with a calculated field

          Hi Stan,

          It doesn't show the whole line, I think I have caused the confusion by starting off the thread saying that the volume mailed doesn't show. There are 2 elements that would show and that is the Amount Mailed and the Cost of Mail.
          On the first page of the report if you look at reference ECT-18-231 you can see in the header row that 1832 is the volume mailed then below there is a row for CUSTOMER showing the amount mailed as 1051 - the difference is the amount mailed were we haven't had any dels_booked - that is what I need to show in the report so the admin people can see which marketing strategies aren't getting a response.

          Comment


            #6
            Re: Help with a calculated field

            Ok, clearer.

            Open the default browse for the set. Sort ascending on mailshot_ref2. Find the ECT-18-231.

            There is only one record in the set that matches. That means there will only be one line on the report for that ref.

            It has a data source of customer but has values in both mint_vol and cust_vol. I'm unclear how there would be a mint_vol quantity without a Mint data source record.

            Short version, you can't have a line on a report for a record that doesn't exist.
            There can be only one.

            Comment


              #7
              Re: Help with a calculated field

              Hi Stan,

              You have helped me I think, so what I need to do is swap the parent and child - have the Mailshot table as the parent and the invoice table as the child, that way I will get the mint_vol and cust_col even it there isn't a corresponding record in the child table. Oh well back to the drawing board.

              Thank you Stan

              Comment


                #8
                Re: Help with a calculated field

                You can have both sets. Miniscule overhead and no data duplication. A set is only a definition of the linkage and layouts based on the definition.

                Once you have the new set saved you should be able to copy the report definition to it.

                have the Mailshot table as the parent and the invoice table as the child, that way I will get the mint_vol and cust_col even it there isn't a corresponding record in the child table
                But it will still only be one line on the report.
                There can be only one.

                Comment

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