The strategy can retrieve a single record if the equality condition is on a key; multiple records may be retrieved if the indexing field is not a key is(a) A2(b) A4(c) A5(d) A6I had been asked this question in a national level competition.Question is from Selection Operation in section Query Processing Techniques of Database Management

The strategy can retrieve a single record if the equality condition is

1.	The strategy can retrieve a single record if the equality condition is on a key; multiple records may be retrieved if the indexing field is not a key is(a) A2(b) A4(c) A5(d) A6I had been asked this question in a national level competition.Question is from Selection Operation in section Query Processing Techniques of Database Management
Answer» CORRECT answer is (B) A4 Explanation: A4 – Secondary INDEX, EQUALITY.

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