The Home_ column stores a patient's home phone number. Which of the following could be used to filter a query to only patients that have a home phone number listed? A. HOME_PHONE IS NULL B. HOME_PHONE <> NULL C. HOME_PHONE IS NOT NULL D. HOME_PHONE = NULL
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The Home_ column stores a patient's home phone number. Which of the following could be used to filter a query to only patients that have a home phone number listed?
A. HOME_PHONE IS NULL
B. HOME_PHONE <> NULL
C. HOME_PHONE IS NOT NULL
D. HOME_PHONE = NULL
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