階層型データモデル
1. Hierarchical database modelHierarchical model redirects here. For the statistics usage, see hierarchical linear modeling or hierarchical Bayesian model. A hierarchical database model is a data model in which the data is organized into a tree-like structure. The structure allows representing information using parent/child relationships: each parent can have many children, but each child has only one parent (also known as a 1-to-many relationship). All attributes of a specific record are listed under an entity type.
Read “Hierarchical database model” on English Wikipedia
Read “階層型データモデル” on Japanese Wikipedia
Read “Hierarchical database model” on DBpedia
Read “Hierarchical database model” on English Wikipedia
Read “階層型データモデル” on Japanese Wikipedia
Read “Hierarchical database model” on DBpedia
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