【cuug】OCP 071考试原题整理-第16题

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;