UGC NET SET - Paper 1 The Internet and E-mail

• A The order of columns in an index is not important.
• B A primary index should have the “Allow Duplicates” property set to “Yes.”
• C A non-clustered index organizes data in a table according to the order of the index.
• D An index is used to improve the speed of data retrieval.
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D

Answer: D

• A. Incorrect: The order of columns in an index is important and should be organized from most to least granular.
• B. Incorrect: A primary index should have the “Allow Duplicates” property set to “No” because it is a unique key.
• C. Incorrect: A clustered index, not a non-clustered index, organizes data in a table according to the order of the index.
• D. Correct: The main purpose of an index is to increase the speed of retrieving data.

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