Newbie inputing invoices...help...

nyma96

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What Im trying to do is make invoices that I have in to data base...
reason for it is to keep a close watch on the price fluctuation since the stuff we get are from different country. We don't really need it but this is my own little project just for myself...I have all the tables made and form ready but I have couple of problems.

1. How do I calculate and save it in the table? I Know this violates 3rd normalization but I need to do this since the price will change almost every week. basic calculation which is total price / quantity.

2. How do I get the previous record on the form automatically? lets say that the date I put in is July,4,2005. How do I get this to show up in form for the new data input? and keep that date until it is updated using form.

3. Since I'll be getting same stuff lots of times, and since they all have item number, How do I get it to auto fill? lets say that I input a item number and rest of the form automatically fills in the rest of the values...and updates are saved to the table and next time I input the same item number updated data will automatically fill in the rest.

Thanks in advance. This is my first post so, please go easy on me...:)
I also search the forum but couldn't find anything that I understood...
Is this a project too advanced for newbies? As I have stated earlier, I have everything layout but I'm just trying to make it easier inputing new data.
and all the codes that are here, I'm lead to believe they are Visual Basic.
and good book for newbies on VB?

Thanks. and sorry for the long post...
 
You would probably be better to record the invoice one time, in what ever base currency you wish. Record each currency conversion in a table and maintain history by date. When you need to know this was valued at xxxx on nnnn date, run the base currency against the currency conversion factor for that date.
Invoice Table
invoice 123
qty 15
currency CD

Currency Table
Currency USD
Date 01/01/2005
Conversion 1.22

Currency USD
Date 01/08/2005
Conversion 1.12

Currency USD
Date 02/29/2005
Conversion 1.42

Now all you have to do is pickup the currency conversion factor for that date rather than duplicate the invoice information each time.
If I understand the problem.
 

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