This isn't really how databases work, sorry.

[edit]

To clarify, tables like shops use auto increment which means that each new row is a new number. Meaning that it's handled automatically, and manually editing that information tends to mess things up.

Also: all of the items in our database (as well as anything that links to shops) points to that specific ID number in reference to wear the item should be stocking, and would need to be changed.

This isn't really feasible.

Locking at request of OP.