Koollt company sells refrigerated trucks and containers to various food suppliers. Koollt collects their customer information in a relational database for easier access to the large volume of data created on a daily basis. From the Customer table, the CustomerID field is connected to the second table for orders through the Freight Number, ShipAddress, OrderDate fields. The files in the Order table are connected back to the Customer table include ShipCity, ShipRegion, ShipPostalCode and ShipCountry. According to this example, Koollt has created a $$ database.