OCP 071中文考試題庫(cuug內部資料)第4題

OCP 071中文考試題庫(cuug內部資料)第4題

本套題庫是OCP考試中的071(中文版)試題，由CUUG整理，如有報考OCP認證意向，可以聯繫cuug諮詢老師。

4、請選擇三項。

查看PRODUCTS表的說明:

Name  Null?  Type

----------------- ------------ ---------------

PRODUCT_ID NOT NULL NUMBER(2)

PRODUCT_NAME VARCHAR2 (10)

UNIT_PRICE NUMBER(3)

SURCHARGE VARCHAR2 (2)

EXPIRY_DATE DATE

DELIVERY_DATE DATE

哪三個查詢使用的表達式有效?

A) SELECT product_id, unit_price, unit_price + surcharge FROM products;

B) SELECT product_id, unit_price, 5 "Discount", unit_price + surcharge - discount FROM products;

C) SELECT product_id, (unit_price * 0.15 / (4.75 + 552.25)) FROM products;

D) SELECT product_id, unit_price || 5 "Discount", unit_price + surcharge - discount FROM products;

E) SELECT product_id, expiry_date * 2 FROM products;

F) SELECT product_id, (expiry_date - delivery_date) * 2 FROM products;