Tracking Inventory Levels

[mbespartochnyy]

Hello everyone,

I'm having trouble figuring out how to calculate a running inventory level based on quantity of an item purchased and sold and few other events. In summary, each day purchases, sales, and other events are recorded per product. I got to the point where I created an inventory table with all available dates for the life of a product, a product ID, purchase price and then quantity that was purchased, sold, etc. each day.

Now I'm at a point where I need to create a calculated column that shows quantity of a product that is available in inventory on a given day. It's very simple to do in Excel, but I'm struggling to get the column created in QlikView script. Attached is the app and a sample spreadsheet that I'm working with. Quantity In Stock (Column J) is what I'm trying to create in script.

Does anyone know of a way to get that done?

Thanks,

Mikhail B.

[mbespartochnyy · Accepted solution]

Solved my own problem. I keep forgetting about Peek function. All that's need to be done here is a preceding load with an IF statement that references previous Quantity In Stock value:

Inventory:
LOAD *,
If([Product ID] = Peek([Product ID]),
      RangeSum([Quantity Change], Peek([Quantity In Stock])),
      [Quantity Change])                                 as [Quantity In Stock];
LOAD Date,
      [Product ID],
      [Purchase Price],
      [Quantity Purchased],
      [Quantity Sold],
      [Quantity Used],
      [Quantity Given],
      [Quantity Borrowed],
      RangeSum([Quantity Purchased],
                -[Quantity Sold],
                -[Quantity Used],
                -[Quantity Given],
                -[Quantity Borrowed])                    as [Quantity Change]
FROM
[Source-Data\QlikView Community\Inventory.xlsx]
(ooxml, embedded labels, table is Inventory);

Mikhail

[paulyeo11]

Hi Sir

can you pls share with me your inventory table model ? As I need to do this. 

Paul