EnsurepassQUESTION 61 You have a column named TelephoneNumber that stores numbers as varchar(20). You need to write a query that returns the first three characters of a telephone number. Which expression should you use?   A. LEFT(TelephoneNumber, 3) B. SUBSTRING(TelephoneNumber, 3, 3) C. SUBSTRING (TelephoneNumber, 3, 1) D. CHARINDEX('[0-9][0-9][0-9]', TelephoneNumber, 3)   Correct Answer: A   QUESTION 62 You are a database developer located in Seattle. You have Read more [...]