Word:

data dictionary

(database)data dictionary - 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.

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Dasyurus
Dasyurus quoll
Dasyurus viverrinus
DAT
Data
data abstraction
Data Address Generator
data bus
data channel
data communication
Data Communication Equipment
Data Communications Equipment
data compression
data conversion
data converter
Data definition language
-- data dictionary --
data dictionary file
data driven
Data Driven Machine
data encryption
Data Encryption Algorithm
Data Encryption Key
Data Encryption Standard
data file
data flow
data flow analysis
Data Flow Diagram
data fork
data format
data formatting
data frame
Data General
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