I Want to implement a FIFO system in my database for Inventory. The only problem is When something gets taken out of its location or row, all other parts shift because that row/spot needs to get filled in. Say I delete a record in row 1 spot A1 because it got shipped to a customer, Now my part that I have in row 1 A2 is moving to A1 and so on. I want to keep A1 empty so next time I go to add a record/part it goes into the A1 spot or any other open spots, so I don't have to reorganize my parts evrytime one gets taken out and shipped.