I have a hard problem with the following data model: I have a Warehouse entity and a Bin entity. They are connected by a 1 : n relationship. Warehouse has as key attribute a warehouse number and bin has 30 bin numbers, because there are 30 bins, and a warehouse number, which is the foreign key. I would like to achieve the following: When a new warehouse is added with new warehouse number, there should be 30 new entries in a query with the new warehouse number and from 1-30 bin numbers. Is this possible?