-- attributes.txt

The INVENTORY entity has the following attributes:

	PRODUCT_ID
	STORE_NUMBER 
	QUANTITY_ON_HAND 
	QUANTITY_ON_ORDER

The INVENTORY table is a linking table to support the many-to-many relationship between the STORE and PRODUCT tables:

	STORE is one-to-many with INVENTORY, linked by STORE_NUMBER.
	PRODUCT is one-to-many with INVENTORY, linked by PRODUCT_ID.
	STORE_NUMBER and PRODUCT_ID are foreign keys in INVENTORY
