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.

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    file format, data (HDF) A library and multi-object file format for the transfer of graphical and numerical data between computeres. The freely available HDF distribution consists of the library, command line utilities, test suite source, Java interface, and the Java-based HDF Viewer (JHV). HDF supports several different data models, including multidimensional arrays, raster images, and […]

  • Hiccough

    [hik-uhp, -uh p] /ˈhɪk ʌp, -əp/ noun 1. a quick, involuntary inhalation that follows a spasm of the diaphragm and is suddenly checked by closure of the glottis, producing a short, relatively sharp sound. 2. Usually, hiccups. the condition of having such spasms: She got the hiccups just as she began to speak. 3. Informal. […]



  • Hic

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