摘要:本文主要向大家介绍了Oracle数据库之【OCP-12c】CUUG 071题库考试原题及答案解析(21),通过具体的内容向大家展现,希望对大家学习Oracle数据库有所帮助。
本文主要向大家介绍了Oracle数据库之【OCP-12c】CUUG 071题库考试原题及答案解析(21),通过具体的内容向大家展现,希望对大家学习Oracle数据库有所帮助。
3.choose three
View the Exhibit and examine the description of SALES and PROMOTIONS tables.
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 three DELETE statements are valid?
A) 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');
B) 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');
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'));
Answer:ACD
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