data dictionary - definition

Create account
Where to search:
Thesaurus


Dictionaries » The Free On-line Dictionary of Computing » D »

data dictionary - definition



A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
(Non-alphabetical character)


Free Online Dictionary of Computing - FOLDOC foldoc.org

data dictionary


 
<database> A data structure that stores meta-data, i.e. data
about data.  The term "data dictionary" has several uses.
 
Most generally it is a set of data descriptions that
can be shared by several applications.
 
Usually it means a table in a database that stores the
names, field types, length, and other characteristics of
the fields in the database tables.
 
An active data dictionary is automatically updated as changes
occur in the database.  A passive data dictionary must be
manually updated.
 
In a DBMS, this functionality is performed by the {system 
catalog}.  The data dictionary is a more general software
utility used by designers, users, and administrators for
information resource management.
 
The data dictionary may maintain information on system
hardware, software, documentation, users, and other aspects.
 
Data dictionaries are also used to document the database
design process itself and can accumulate meta-data
ready to feed into the system catalog.
 

 
(2001-04-24)
 



Permanent link to this page: http://www.diclib.com/cgi-bin/d1.cgi?l=en&base=en_foldoc&page=showid&id=3111


Learn foreign languages chatting with us!

  • Kate, 20
    Ukraine, Kiev
    Native language: Russian, Ukrainian
    Foreign language: English
    Kate
  • karla vanessa, 28
    Ecuador, Guayaquil
    Native language: Spanish
    Foreign language: English
    karla vane...
  • Fazliddin, 55
    Russian Federation, Bryansk
    Native language: Russian, Persian
    Foreign language: English
    Fazliddin
  • Atenea, 28
    Honduras, Tegucigalpa
    Native language: Spanish
    Foreign language: Spanish
    Mi nombre es Atenea, soy de Tegucigalpa, Honduras. Tengo 26 Años, soy bajita, blanca, ojos color cafe, cabello negro largo. Mi musica es el metal, mi genero favorito es el Blac metal, aunque escucho todos los generos. Mi pasatiempo favorito es leer.
    Atenea
  • adriana, 16
    Venezuela, Maracaibo
    Native language: Spanish
    Foreign language: Spanish
    adriana
  • Hany, 18
    Cuba, Holguin
    Native language: Spanish
    Foreign language: Spanish
    Hany
  • Elsa V, 41
    Philippines, Davao
    Native language: Filipino
    Foreign language: English
    Elsa V
  • Radames Liuba Marten Torres, 39
    Qatar, Doha
    Native language: Spanish
    Foreign language: English
    Radames Li...
  • ELMER, 40
    Guatemala, Guatemala City
    Native language: Spanish
    Foreign language: Spanish
    OK. PUES SOY TRANQUILO. SOY CRISTIANO Y TENGO 3 MARAVILLOSOS HIJOS, SOY DIVORCIADO Y ME ENCANTA CONOCER PERSONAS. ME GUSTARIA CONOCER GENTE DE OTROS PAISES Y SABER QUE PIENSAN DE JESUCRISTO Y DE LAS PRUEBAS QUE HAN SUPERADO. BENDICIONES
    ELMER
  • Max, 34
    Russian Federation, Казань
    Native language: Russian
    Foreign language: English, Italian, Ukrainian, German
    Max
  • eliseo, 48
    Honduras, San Pedro Sula
    Native language: Spanish
    Foreign language: English
    my name is eliseo i hope some one in my page
    eliseo
  • naileth serrano, 27
    Colombia, Pailitas-Cesar
    Native language: Spanish
    Foreign language: Spanish
    naileth se...
  • fabian garrido, 20
    Chile, Vina Del Mar
    Native language: Spanish
    Foreign language: English
    fabian gar...
  • DanielaTorres, 17
    Colombia, Pasto
    Native language: Spanish
    Foreign language: English
    DanielaTor...
  • Celi Barboza, 16
    Argentina, San Juan
    Native language: Spanish
    Foreign language: English
    Celi Barbo...
  • Jhony Ruiz, 30
    El Salvador, San Salvador
    Native language: Spanish
    Foreign language: English
    Soy una persona tranquila me gusta leer mucho, tambien me gusta interactuar con los demas,,, me creo bastante sociable...
    Jhony Ruiz
  • akifa, 25
    Australia, Sydney
    Native language: English
    Foreign language: English
    am a good and nice looking girl who really believe in reality of love
    akifa
  • lyndia, 23
    Dominican Republic, Higuey
    Native language: Spanish
    Foreign language: English
    soy muy obediente cool sympatica
    lyndia
  • Pascacio Jose, 19
    Panama, Santiago
    Native language: Spanish
    Foreign language: French
    Pascacio J...
  • mariargu, 16
    Peru, Lima
    Native language: Spanish
    Foreign language: English
    mariargu