hierarchical database


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Related to hierarchical database: Network database

hierarchical database

(database)
A kind of database management system that links records together like a family tree such that each record type has only one owner, e.g. an order is owned by only one customer. Hierarchical structures were widely used in the first mainframe database management systems. However, due to their restrictions, they often cannot be used to relate structures that exist in the real world.

hierarchical database

A database organization method that is structured in a hierarchy. All access to data starts at the top of the hierarchy and moves downward; for example, from customer to orders, vendor to purchases, etc. Contrast with relational database and network database.
References in periodicals archive ?
OK, so there is graph theory behind the graphical databases, but that graph theory already existed behind hierarchical databases when relational databases replaced most of the hierarchical databases back in the day.
Computers store data in diverse and often incompatible forms: structured, unstructured, relational or hierarchical databases, in flat files or as multimedia objects.
Other multimedia encyclopedias use hierarchical databases, which lead users down a narrower, more finite path.
They do not incorporate relational database management systems that make modifying systems and extracting data more efficient--they maintain their rigid hierarchical databases designed for the first version of their software.

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