A data model provides a way to represent data and their relationships.

1.	A data model provides a way to represent data and their relationships.(a) Which data model assigns records to different levels of hierarchy? (b) Briefly explain the relational data model.
Answer» (a) Hierarchical Data Model (b) In relational data model data are stored as tables. Here the term relation means table. A table consists of rows and columns. Columns mean attributes and rows means tuples.

A data model provides a way to represent data and their relationships.(a) Which data model assigns records to different levels of hierarchy? (b) Briefly explain the relational data model.

Answer»

(a) Hierarchical Data Model

(b) In relational data model data are stored as tables. Here the term relation means table. A table consists of rows and columns. Columns mean attributes and rows means tuples.

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A data model provides a way to represent data and their relationships.(a) Which data model assigns records to different levels of hierarchy? (b) Briefly explain the relational data model.

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