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Which of the following relational database terms would include a central repository of metadata and data relationships?
Database management system
Database
Data dictionary
File
The correct answer is data dictionary. The data dictionary is a central repository of metadata and data relationships. A data dictionary, or metadata repository, as defined in the IBM Dictionary of Computing, is a "centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format". Oracle defines it as a collection of tables with metadata
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