【OCP-12c】CUUG 071题库考试原题及答案解析（21）

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