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Temporary Fields How To

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  • Temporary Fields How To

    Suppose you want to print mailing labels (or make a list) of all customers who have purchases of $500 during the last year. I'm not sure how to approach this with web-based Alpha Five. I am using a SQL database (AlphaDAO connection) and this is going to be a multi-user system. Is there a way to store total purchases (computed by some XBasic code) in a temporary field? I really don't know how to do this without storing the total purchase in a field in the customer database. But what if another user is storing totals at the same time? Advice would be appreciated.


  • #2
    Re: Temporary Fields How To

    Hi Donna,

    By storing total purchases in a temp field you're breaking all sorts of database laws. And you just don't want to do that. I think it's something like Thou shalt not store summary data in a database.
    You can run a report based on a SQL View which is a saved Select, which can summarize your data... and no laws broken.

    The View would be something like

    SELECT tblOrders.ProdId, Sum(tblOrders.ProdPrice) AS SumProd
    FROM tblOrders
    GROUP BY tblOrders.ProdId
    HAVING (((Sum(tblOrders.ProdPrice))>500))
    ORDER BY tblOrders.ProdId;
    Will that accomplish what you need to do?


    • #3
      Re: Temporary Fields How To

      Obviously, I am not experienced with SQL, because I didn't know the SUM function existed. My database is Access. I assume it has this capability. I don't think that view will get what I need exactly, but I may be able to write something that will. I need the customer's identified so I may use CustID where you have ProdId. I used to create throw away dbfs to store such info, but this will be far superior! Thanks so much.


      • #4
        Re: Temporary Fields How To

        Too funny... I used Access to create the SQL Statement.

        Access... excellent... even better. Your report can use Access queries as a source. I wasn't sure about that, but just tried it and the queries are all listed with the tables.

        Attached is a sample screen shot using the Access query builder.

        I would love it if MySQL and SQLServer had a similar builder... I've never found anything that can come close to the Access builder.
        Attached Files
        Last edited by Davidk; 02-09-2012, 08:42 AM.


        • #5
          Re: Temporary Fields How To

          Thanks again for opening my eyes. I have not used Access (or any SQL database) enough to know its capabilities. I'll check out the builder.
          Last edited by Dfred; 02-09-2012, 01:22 AM.