A set of databases from different vendors, possibly using different database paradigms

Information that is hidden in a database and that cannot be recovered by a simple SQL query.

Heuristic is

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Q. Heuristic is

(A) A set of databases from different vendors, possibly using different database paradigms
(B) An approach to a problem that is not guaranteed to work but performs well in most cases.
(C) Information that is hidden in a database and that cannot be recovered by a simple SQL query.
(D) None of these

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✅ Correct Answer: (B) An approach to a problem that is not guaranteed to work but performs well in most cases.

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