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What is Overview of Hierarchical Database Model about?

The document summarizes several database models: - The hierarchical model organizes data in a tree structure with parent-child relationships, allowing one parent but multiple children. It was popular from the 1960s-1970s. - The network model extended the hierarchical model to allow multiple parents per child, modeling many-to-many relationships. It was defined in 1971 and based on set theory. - The relational model organizes data in tables with rows and columns and allows querying and joining of tables

Author

mallireddy1234

Language

EN