Category:Hierarchical models

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 The article Hierarchical models on Wikipedia projects: (en) Hierarchical model ·
(ca) Bases de dades jeràrquiques · (de) Hierarchisches Datenbankmodell · (es) Base de datos jerárquica · (fr) Base de données hiérarchique · (he) בסיס נתונים היררכי · (ia) Base de datos hierarchic · (it) Modello gerarchico · (ja) 階層型データモデル · (ko) 계층형 모델 · (nl) Hiërarchische database · (pt) Modelo hierárquico · (ru) Иерархические базы данных · +/−

A hierarchical data model is a database model in which the data is organized into a tree-like structure. The structure allows repeating information using parent/child relationships: each parent can have many children but each child only has one parent.