071考试既是ocp11g的考试科目,又是ocp12c的考试科目,所以关注的人很多,由于071考试题多变,我们专门收集了近期的071考试原题,并对071考试进行了讲解,分享给大家。
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071考试原题-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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