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What is the use of an index?(a) Retrieve data more quickly and efficiently(b) Related data requires much less I/O overhead if accessed simultaneously(c) Simplify the user’s perception of data access(d) All of the MentionedI got this question in unit test.This intriguing question comes from Oracle Database 11g Architecture topic in chapter Oracle Database 11g Architecture Options of Oracle |
Answer» <html><body><p>The correct answer is (a) <a href="https://interviewquestions.tuteehub.com/tag/retrieve-613988" style="font-weight:bold;" target="_blank" title="Click to know more about RETRIEVE">RETRIEVE</a> data more quickly and efficiently<br/><br/>To <a href="https://interviewquestions.tuteehub.com/tag/explain-447165" style="font-weight:bold;" target="_blank" title="Click to know more about EXPLAIN">EXPLAIN</a> I would say: Index is <a href="https://interviewquestions.tuteehub.com/tag/used-2318798" style="font-weight:bold;" target="_blank" title="Click to know more about USED">USED</a> for to perform the <a href="https://interviewquestions.tuteehub.com/tag/quick-1174961" style="font-weight:bold;" target="_blank" title="Click to know more about QUICK">QUICK</a> operation on the data.</p></body></html> | |