OCP 1Z0-051 168
You want to delete rows from the SALES table, where the PROMO_NAME column in the PROMOTIONS table has either blowout sale or everyday low price as values.
Which DELETE statements are valid? (Choose all that apply.)
A.DELETE FROM sales
WHERE promo_id = (SELECT promo_id FROM promotions WHERE promo_name = 'blowout sale') AND promo_id =
(SELECT promo_id FROM promotions WHERE promo_name = 'everyday low price');
B.
DELETE FROM sales
WHERE promo_id = (SELECT promo_id FROM promotions WHERE promo_name = 'blowout sale') OR promo_id =
(SELECT promo_id FROM promotions WHERE promo_name = 'everyday low price');
C.
DELETE FROM sales
WHERE promo_id IN (SELECT promo_id FROM promotions WHERE promo_name = 'blowout sale' OR promo_name = 'everyday low price');
D.
DELETE FROM sales
WHERE promo_id IN (SELECT promo_id FROM promotions WHERE promo_name IN ('blowout sale','everyday low price'));
答案：（B、C、D）
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