1Z0-872 Practice Test

19 08 2014

QUESTION 1 Assuming you want to add an index on the isofficial column, which of the following statements are true?   A.    A SELECT query with WHERE lsOfficial=’T’ will perform much faster with the index because there aren’t many rows with that value. B.    A SELECT query with WHERE IsOfficial-`F’ will perform much faster with […]

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