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Explain these database models: a)Network model
b)Flat file

Answer Text:
a)Network medel: links are used to express the relationship between different data items forming a network of items. The data items are known as the sets and are located using a
pointer. It creates a many-to-many relationship.
b)Flat file: flat file database can only hold one set of data at a time just like the traditional filing system. The data item is stored sequentially in one file and access to it is done serially