Learn the key differences between relational and NoSQL databases with this in-depth comparison. There’s nothing wrong with the traditional relational database management system. In fact, many ...

Hierarchical, Network and Object Databases. In non-relational "hierarchical" and "network" databases, records in one file contain embedded pointers to the locations of records in another, ...

They also provide the data in a hierarchical format.When storing data in relational systems, an external primary key may be attached to the XML document for maintaining primary document keys.