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 data format
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 […]
[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. […]
[hik] /hɪk/ interjection 1. (an onomatopoeic word used to imitate or represent a hiccup.) [heek et oo-bee-kwe; English hik et yoo-bahy-kwee] /ˈhik ɛt uˈbi kwɛ; English ˈhɪk ɛt yuˈbaɪ kwi/ Latin. 1. here and everywhere. [heek yah-ket; English hik jey-set] /ˈhik ˈyɑ kɛt; English ˈhɪk ˈdʒeɪ sɛt/ Latin. 1. here lies (often used to begin […]
- Hierarchical navigation
World-Wide Web On a web page, any type of menu whose hierarchical structure matches that of the site to which the page belongs. A hierarchical navigation menu allows the user to jump (“navigate”) directly to a section of the site several levels below the top. The menu may present only a fixed number of levels […]