Adata dictionary is a repository of information describing


Which of the following descriptions is incorrect?

(A)Data dictionary is a repository of information describing the data in the database (B)A constraint is a rule that is enforced on the data (C)Data manipulation language is a set of commands used to alter the data in a database (D)Data flow diagram signifies the quantities involved in an association.

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Management Theories: Adata dictionary is a repository of information describing
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