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Overview of Hierarchical Database Model by hasandalal is a document available to read on EtoBox.

The document discusses several database models: 1) The hierarchical model organizes data in a tree-like structure with a single upward link and sort field to describe nesting. This allows 1:N relationships but is inefficient for certain queries. 2) The network model builds on the hierarchical model concept but allows branches to connect to multiple nodes, representing relationships more efficiently. It uses navigational access via pointers. 3) The relational model represents data in tables with rows and

Author

hasandalal

Language

EN