Consider a database table R with attributes A and B. Which of the foll – McqOptions

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1.	Consider a database table R with attributes A and B. Which of the following SQL queries is illegal ?
A.	SELECT A FROM R;
B.	SELECT A, COUNT(*) FROM R;
C.	SELECT A, COUNT(*) FROM R GROUP BY A;
D.	SELECT A, B, COUNT(*) FROM R GROUP BY A, B;
Answer» C. SELECT A, COUNT(*) FROM R GROUP BY A;

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