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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16.choose two
View the Exhibit and examine the structure of the PRODUCT_INFORMATION and INVENTORIES tables.
You have a requirement from the supplies department to give a list containing PRODUCT_ID, SUPPLIER_ID, and QUANTITY_ON_HAND for all the products where in QUANTITY_ON_HAND is less than five.
Which two SQL statements can accomplish the task? (Choose two.)
A) SELECT product_id, quantity_on_hand,supplier_id
FROM product_information
NATURAL JOIN inventories AND quantity_on_hand < 5;
B) SELECT i.product_id, i.quantity_on_hand,pi.supplier_id
FROM product_information pi JOIN inventories i
ON (pi.product_id=i.product_id) AND quantity_on_hand < 5;
C) SELECT i.product_id, i.quantity_on_hand,pi.supplier_id
FROM product_information pi JOIN inventories i
USING (product_id) AND quantity_on_hand < 5;
D) SELECT i.product_id, i.quantity_on_hand,pi.supplier_id
FROM product_information pi JOIN inventories i
ON (pi.product_id=i.product_id)
WHERE quantity_on_hand < 5;
Answer：BD
(解析：AC 语法不对，执行时显示 ORA-00933: SQL 命令未正确结束
类似的语句：
1、
select d.deptno,d.dname,e.empno,e.ename,e.sal
from emp e join dept d
on (e.deptno=d.deptno)
where sal < 3000;)
2、
select d.deptno,d.dname,e.empno,e.ename,e.sal
from emp e join dept d
on (e.deptno=d.deptno) and sal < 3000;
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