Distinguish between network database model and relational database model.

Distinguish between network database model and relational database model. 
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1 Answer

Answer :

Network database model
Relational database model
Relationship between records is expressed in the form of pointers or links
Relationship between records is represented by a relation that contains a key for each record involved in the relationship. 
Many to many relationship can also be implemented
Many to many relationship can be easily implemented
Record relationship implementation is very complex due to use of pointers 
Relationship implementation is very easy through the use of a key or composite key fields
Network model is useful for representing such records which have many to many relationships
Relationship model relations are is useful for representing most of the real world objects and relationship among them
In Network model also the record relations are physical
Relational model does not maintain physical connection among of records. Data is organized logically in the form of rows and columns.
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