Hierarchical model in DBMSIn hierarchical model, data is organized into a tree like structure with each record is having one parent record and many children. The main drawback of this model is that, it can have only one to many relationships between nodes.Note: Hierarchical models are rarely used now.Sample Hierarchical Model Diagram: Lets say we have few students and few courses and a course can be assigned to a single student only, however a student take any number of courses so this relationship becomes one to many.

Question

Hierarchical model in DBMSIn hierarchical model, data is organized into a tree like structure with each record is having one parent record and many children. The main drawback of this model is that, it can have only one to many relationships between nodes.Note: Hierarchical models are rarely used now.Sample Hierarchical Model Diagram:  Lets say we have few students and few courses and a course can be assigned to a single student only, however a student take any number of courses so this relationship becomes one to many.

Lalitesh sharma · Accepted Answer

Hierarchical model in DBMSIn hierarchical model, data is organized into a tree like structure with each record is having one parent record and many children. The main drawback of this model is that, it can have only one to many relationships between nodes.Note: Hierarchical models are rarely used now.Sample Hierarchical Model Diagram:  Lets say we have few students and few courses and a course can be assigned to a single student only, however a student take any number of courses so this relationship becomes one to many.

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[The term _______ is used to refer to a row.]

[The term attribute refers to a ___________ of a table.]

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