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Name and describe any two types of database models.

Name and describe any two types of database models.

Answers

Isacko
(i) Flat file model in which the database holds only one set of data.



(ii) Network model in which links are used to express the relationship between different data items forming a network of items.
Q181012019943.png
In the network model, entries are organized in which some entities can be accessed through several paths



(iii) Relational model in which related data items are stored together in structures (tables) a relationship can be created between tables such that a record or records from one table relates to another in another table.
Q181012019946.png
In this type of organization, related data items are stored together in a relations or tables. Relationship can be created between tables such that a record or records from one table relates to another or other records in another table.



(iv) Hierarchical model in which data items are arranged in hierarchical (tree) form to access level two data items, you have to first access level 1 data items.
Mohaissack answered the question on October 12, 2017 at 11:27

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