The Network Data Model

  • In this model, data is represented by collections of records and relationships among data are represented by links. Ie., the collection of records which are connected to one another by means of links.
  • A record is a collection of fields (attributes), each of which contains only one data value.
  • A link is an association between precisely two records.
  • The structure of the database is shown as an arbitrary graph in which the records form the nodes and links form the edges.
  • There is no concept of a root node.
Database Management System
  • The operations on a network database are performed through a data manipulation language for network model.
  • The operations that can be performed on a network database include find, insert, delete, modify etc.
  • The inserting or removing records include connect, disconnect and reconnect operations.