COMPUTER APPLICATIONS
DATABASE MANAGEMENT SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Database
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Metadata
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Hardware
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Software
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Detailed explanation-1: -Data dictionaries store and communicate metadata about data in a database, a system, or data used by applications. A useful introduction to data dictionaries is provided in this video. Data dictionary contents can vary but typically include some or all of the following: A listing of data objects (names and definitions)
Detailed explanation-2: -On the other hand, a data dictionary is a data structure that stores metadata, i.e., (structured) data about information.
Detailed explanation-3: -A Data Dictionary is an integral part of a database. It holds the information about the database and the data that it stores called as metadata. A meta data is the data about the data. It is the self-describing nature of databases. It holds the information about each data element in the database.
Detailed explanation-4: -A data dictionary is a collection of descriptions of the data objects or items in a data model to which programmers and others can refer. Often, a data dictionary is a centralized metadata repository.