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Which of the following need to be stored in the data dictionary?

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Which of the following need to be stored in the data dictionary?

(a) Name of the relation

(b) Domains and lengths of attributes

(c) Integrity constraints

(d) All of the mentioned

The question was asked in a national level competition.

Asked question is from Organization of Records in Files topic in section Storage and File Structure of RDBMS

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The correct answer is (d) All of the mentioned

To elaborate: Name of the relation, Domains and lengths of attributes and Integrity constraints all must be stored in the data dictionary.

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