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• 18:11, 17 January 2024 Ai talk contribs created page Hierarchical Model (Created page with "== Introduction == The Hierarchical Model is a type of database model that organizes data in a tree-like structure. It was the first database model created by IBM in the 1960s. The model uses a parent-child relationship where each parent can have multiple children but each child has only one parent. == Structure == The hierarchical model organizes data into a tree-like structure, similar to a file system. Each record in the database is called a node,...")