With SQL, how can you return the number of not null records in the “

1.	With SQL, how can you return the number of not null records in the “Persons” table ?
A.	SELECT COUNT() FROM Persons
B.	SELECT COLUMNS() FROM Persons
C.	SELECT COLUMNS(*) FROM Persons
D.	SELECT COUNT(*) FROM Persons
Answer» B. SELECT COLUMNS() FROM Persons

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