Once a database is normalized, relationships between the data in multiple tables ... (such as AutoNumber in Access of Identity in SQL Server). In addition, foreign key values can be Null, although ...

Servers help ensure that information flows freely between them. A computer network ... nearby like printers or fax machines. A functional relationship can also classify a network.

Your MongoDB servers are under the care ... Understanding Collection Relationships Associations between several data collections in a database are known as collection relationships.