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A _______________ key is a minimal super key(a) Primary(b) Foreign(c) Candidate(d) Non-PrimeI had been asked this question in quiz.My question is based upon Foreign, Candidate, Primary, Composite, Unique Keys topic in section Planning Oracle Applications of Oracle |
Answer» <html><body><p>Right <a href="https://interviewquestions.tuteehub.com/tag/choice-915996" style="font-weight:bold;" target="_blank" title="Click to know more about CHOICE">CHOICE</a> is (<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a>) <a href="https://interviewquestions.tuteehub.com/tag/candidate-25673" style="font-weight:bold;" target="_blank" title="Click to know more about CANDIDATE">CANDIDATE</a><br/><br/>The explanation: In the relational model of databases, a candidate key of a relation is a <a href="https://interviewquestions.tuteehub.com/tag/minimal-1097157" style="font-weight:bold;" target="_blank" title="Click to know more about MINIMAL">MINIMAL</a> <a href="https://interviewquestions.tuteehub.com/tag/superkey-1235021" style="font-weight:bold;" target="_blank" title="Click to know more about SUPERKEY">SUPERKEY</a> for that relation.</p></body></html> | |