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SQL report with grouping

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    SQL report with grouping

    Hi,
    I need some help on setting up a MySQL report.

    I have set up a view that pulls data from multiple tables so I can print an invoice.

    The invoice header is linked to a customer table, management company table, detail table, payments table and credits table. (Payment and credits are 2 different things) A sample of the sql data string is shown in one of the atached images.

    An invoice can have 1 or more payments applied to it and can have 1 or more credits applied to it. The invoice form is multi-use in that it is obviously used for initial billing where no payments and/or credits are attached, but also for reprints and rebilling when payments and/or credits have been applied.

    The problem is how to show the payments and credits on the invoice when they apply. See the bottom part of the invoice image I have attached. When I built this invoice originally it was built against .dbf tables, so it was easy to show the payments/credits by using a subreport. I cannot figure out to do that now with a sql data string.

    I can get the payments and/or credits by doing this in the calculation values part of the report by doing this:
    credit = if(SQLDATASOURCE->credits<>0,inv_credit(SQLDATASOURCE->invno),"")
    payments = if(SQLDATASOURCE->amountpaid<>0,inv_payment(SQLDATASOURCE->invno),"")

    This meant I had to build 2 functions inv_credit() and inv_payment() to get the data, 2 more hits to the server to get the info. But that is not a good way to do it obviously.

    Any ideas on how I can make this work using the sql data string instead of having to use these functions?

    Thanks,
    mike

    Part of the data string with invoice amount, info from credits table and info from payments table.
    sql_data.jpg

    How part of the invoice looks using the functions listed above
    invoice.jpg
    Mike Reed
    Phoenix, AZ

    #2
    Re: SQL report with grouping

    You can do it similarly in SQL, you just have to join all those tables in at the same time. This gives you way more records than you need because you get "duplicate" records for every payment, line item, and credit. But then you use grouping and the subreports to filter out the correct rows for the correct sub-report. That can be kind of a pain in the ass.

    Alternatively, you can create functions in SQL that work like subreports.

    In your SQL function, you can concatenate all of your data into an HTML table, then use printHTML to print that table into your report.

    To do this, you basically use a SQL cursor to go through the records and turn them all into one large HTML String (Look up HTML table codes, just about anywhere.).

    Does that help?

    Comment


      #3
      Re: SQL report with grouping

      If you create a function in Mysql, can you reference and get the result of that funciton to display in an Alpha Anywhere SQL based report? I also tried creating a view that referenced the result that I wanted, such as "tax_item_total". The view runs in mysql, but it seems that you can only base a report on one view, not multiple ones. I also saved the "tax_item_total" as a stored routine (procedure). I can call that in mysql to get the result, but how do I do that within the confines of an Alpha Anywhere sql based report?
      Richard Urban

      Grocery Delivery Software for Stores and Entrepreneurs: http://www.urbangrocery.com

      Comment


        #4
        Re: SQL report with grouping

        Not knowing the specifics of your function, in generaly you add the new function to the view you are already using in your report or you can join views within the report writer. As long as you do it all in one sql statement.

        However, you may have trouble if you try to reference the function directly in an Alpha 5 select statement, better to use it from a view.

        Comment


          #5
          Re: SQL report with grouping

          Mike,

          Why can't you use a subreport?
          I have a complex contract document based on mysql and use subreports for that.

          Pieter

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