这两年来,OCP的071考试不像以前那么稳定了,总是不断的有新考题出现,增加了071考试的难度,对此,我们对071考试的原题进行了收集,并由专业人员给出了答案,分享给大家。
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071最新题库-第25题、choose two:
View the Exhibit and examine the data in the PRODUCT_INFORMATION table.
Which two tasks would require subqueries? (Choose two.)
A) displaying all supplier IDs whose average list price is more than 500
B) displaying the total number of products supplied by supplier 102071 and having product status OBSOLETE
C) displaying all the products whose minimum list prices are more than the average list price of products having the product status orderable
D) displaying the number of products whose list prices are more than the average list price
E) displaying the minimum list price for each product status
Answer:CD
(解析:子查询用在查询未知的值。
C 的答案类似于:
SQL> select sal from emp where sal > (select avg(sal) from emp where job='SALESMAN');
D 的答案类似于:
SQL> select count(*) from emp where sal > (select avg(sal) from emp);
)
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