Explain these database models:
a)Relational
b)Hierarchical

Answer:

a)Relational: it is a type of database model that allows the user to represent data in a simple row-column (tabular) format. A field is represented in a column while the records are presented in a row.
b)Hierarchical: it is a type of database model that organize data in different levels in the form of a tree structure. The origin of data is known as the root. Data in different levels below the root are known as the nodes and the last node is the leaf

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