A foreign key is a relationship between two entities. Generally speaking, inter-entity relationships are one-to-many, e.g., an ORDER has many ORDER LINEs, and so forth. Even a case that may start out ...

Here are the details to two versions of Product Tables, one for Access 2000/97 and one for SQL Server 7. Not all of these fields are necessary in one database. For example, with Size and color you can ...

When working on a multidimensional design, every fact table within scope should be handled with care. In an ideal world, each low-level fact table represents the metrics related to a business event.