1) If we use COUNT (*), NULL values ​​are also counted. a) True b) False 2) We can use the WHERE clause even after an aggregation. a) True b) False 3) The HAVING clause is used after a grouping. a) True b) False 4) Aggregate functions return multiple values. a) True b) False 5) The DISTINCT clause returns only different values. a) True b) False 6) We can use the HAVING clause even without a grouping. a) True b) False

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