Explain relational data model with an example.

1.	Explain relational data model with an example.
Answer» Relational Database Model: Dr. E.F.Codd first introduced the Relational Database Model in 1970. This model allows data to be represented in a ‘simple row-column format’. Properties of the relational database model: Data is presented as a collection of relations. Each relation is depicted as a table. Columns are attributes that belong to the entity modeled by the table (ex. In a student table, you could have a name, address, student ID, major, etc.). Each row (“tuple”) represents a single entity. Every table has a set of attributes that taken together as a “key” (technically, a superkey”) uniquely identifies each entity.

Answer»

Relational Database Model:
Dr. E.F.Codd first introduced the Relational Database Model in 1970. This model allows data to be represented in a ‘simple row-column format’.

Properties of the relational database model:

Data is presented as a collection of relations.
Each relation is depicted as a table.
Columns are attributes that belong to the entity modeled by the table (ex. In a student table, you could have a name, address, student ID, major, etc.).
Each row (“tuple”) represents a single entity.
Every table has a set of attributes that taken together as a “key” (technically, a superkey”) uniquely identifies each entity.

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Explain relational data model with an example.

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