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how to process running balance?

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    how to process running balance?

    hi to all,

    i have a stock card report which does not display the right running balance.

    report screen shot attached.

    the story:
    after the application is deployed, i told the end user to enter all purchases on file, then all invoices too..

    the thing is, i am saving the running balance on every line_item transaction of purchase deliveries and sales invoices, recording the incorrect running balance. see screen shot.

    what i need to do now is process/correct the data before previewing the report.

    the data should be arranged by date + transaction type which I'm having problem to start with xbasic. the order of transaction type will be purchase, adj-in, sales, adj-out with respect to date.

    Recid	        Character	16	0	
    Prodcode	Character	10	0	
    T_Date	        Date	8	0	
    T_Name	        Character	50	0	
    T_Ref_No	Character	12	0	
    T_Trantype	Character	10	0	
    T_Purchased	Numeric	12	2	
    [COLOR="Blue"]T_Adj_In	Numeric	12	2	
    T_Adj_Out	Numeric	12	2	
    T_Sold	        Numeric	12	2	
    T_Old_Bal	Numeric	12	2[/COLOR]	
    T_Run_Bal	Numeric	12	2	
    T_Amount	Numeric	12	2
    do i need to re-design the structure to simplify/optimize for easy calculation? i thought of making the blue fields into one numeric field to store the qty values of each transaction, allowing me to save lines of codes in getting which field to compute based on "trantype".

    please evaluate and advice what to do..
    Last edited by fddizon; 06-29-2010, 10:20 PM. Reason: forgot the attachment

    Re: how to process running balance?

    Francis, I agree that restructuring your table would simplify things. If I understand the context correctly you could use two columns (fields).

    Tnx_Qty would be numeric and would contain the quantity for each transaction.
    Tnx_type would be character and would be populated from a simple lookup pick list with field values "Purchase", "Sale", "Adj in", Adj out", etc. for each transaction. One record would contain data for a single transaction. You'd never have one record that was for both a purchase and an adjustment. That would be two records, see the difference?

    If the user is permitted to edit previously saved transactions then you need to automate the process of recomputing the running balance figures that are in the "later" records. This is similar to the problem Dr. Wayne solves in his checkbook example in "Xbasic for Everyone", right?

    Alternatively, some would recommend blocking edits on previouusly saved records. Instead needed adjustments would be made using new records that offset or correct previous mistakes. Explanations for adjusting entries can be required, so that you wind up with a chronological record of all tnx affecting a given item.

    -- tom


      Re: how to process running balance?

      hi tom,

      do you still recognize those fields you created? i did some additional fields for my purpose... those came from the routine you created for me...

      many thanks to you...

      i will try to simplify the fields and will try to create xbasic routine for the recalculation and will get back to this thread to tell you how it will go.