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You issue the following query:
|
SELECT COUNT(*),prod_category_id FROM products GROUP BY prod_category_id HAVING COUNT(*) = (SELECT MAX(COUNT(*)) FROM products); |
What is the outcome?
A.It executes successfully and gives the correct output.
B. It executes successfully but does not give the correct output.
C. It generates an error because the subquery does not have a GROUP BY clause.
D. It generates an error because = is not valid and should be replaced by the IN operator.
答案:(C)
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