【OCP-12c】CUUG 071题库考试原题及答案解析（13）

13、（6-7） choose two
Which two statements are true regarding operators used with subqueries? (Choose two.)
A) =ANY and =ALL operators have the same functionality.
E) The NOT IN operator is equivalent to is NULL.
C) The <ANY operator means less than the maximum.
D) The NOT operator can be used with IN, ANY and ALL operators.
E) The IN operator cannot be used in single-row subqueries.
Answer：CD
（解析：051 曾经出现过，但是当时是单选题，答案是 D，这个语法比较少见。
其实就是把 NOT 放到整个表达式之前，下面条件执行的结果都是一样，考大家的逻辑思维能力：
WHERE NOT col IN (SELECT ...)（也可以是 WHERE col not IN (SELECT ...)）
WHERE NOT col = ANY (SELECT ...)（大于、小于都可以）
WHERE NOT col = ALL (SELECT ...)（大于、小于都可以）
SQL> select deptno from emp
2 where not deptno in (select deptno from dept where deptno=10);
DEPTNO

20
30
30
....
或者：
select deptno from emp
where not deptno = all (select deptno from dept where deptno=10);

原文地址：http://blog.51cto.com/13854012/2351296

时间： 2024-08-29 07:19:21

【OCP-12c】CUUG 071题库考试原题及答案解析（13）的相关文章

【OCP认证12c题库】CUUG 071题库考试原题及答案（25）

choose the best answer Evaluate the following SQL statement: ALTER TABLE hr.emp SET UNUSED (mgr_id); Which statement is true regarding the effect of the above SQL statement? A) Any views created on the EMP table that include the MGR_ID column would b

【OCP认证12c题库】CUUG 071题库考试原题及答案（26）

26.choose two Examine the structure of the PRODUCTS table. Which two statements are true? A) EXPIRY_DATE always stores date and time in character format B) PRICE can store a maximum of eight digits and two decimals. C) PRODUCT_PIC can store only vide

【OCP认证12c题库】CUUG 071题库考试原题及答案（28）

28.choose the best answer Evaluate the following SQL statement: SQL> SELECT promo_id, promo_category FROM promotions WHERE promo_category = 'Internet' ORDER BY 2 DESC UNION SELECT promo_id, promo_category FROM promotions WHERE promo_category = 'TV' U

【OCP认证12c题库】CUUG 071题库考试原题及答案（27）

27.choose two The SQL statements executed in a user session are as follows: SQL> CREATE TABLE product (pcode NUMBER(2), pname VARCHAR2(10)); SQL> INSERT INTO product VALUES (1, 'pen'); SQL> INSERT INTO product VALUES (2,'pencil'); SQL> SAVEPOI

【OCP-12c】CUUG 071题库考试原题及答案解析（14）

14.(6-13) choose the best answer:View the Exhibit and examine the structure of the ORDERS table.Which UPDATE statement is valid? A) UPDATE ordersSET order_date = '12-mar-2007'AND order_total = TO_NUMBER(NULL)WHERE order_id = 2455; B) UPDATE ordersSET

【OCP-12c】CUUG 071题库考试原题及答案解析（15）

15.(6-24)choose the best answerExamine the structure of the MEMBERS table:You want to display details of all members who reside in states starting with the letter A followedby exactly one character. Which SQL statement must you execute? A. SELECT * F

【OCP-12c】CUUG 071题库考试原题及答案解析（16）

16.(7-5) choose the best answerThe PRODUCTS table has the following structure:Evaluate the following two SQL statements:SQL>SELECT prod_id, NVL2(prod_expiry_date, prod_expiry_date + 15,'')FROM products;SQL>SELECT prod_id, NVL(prod_expiry_date, prod_

【OCP-12c】CUUG 071题库考试原题及答案解析（18）

18.(8-7) choose twoWhich two statements are true regarding views? (Choose two.) A) A simple view in which column aliases have been used cannot be updated.B) The OR REPLACE option is used to change the definition of an existing view without droppingan

【OCP-12c】CUUG 071题库考试原题及答案解析（17）

17.(7-11) choose twoView the Exhibit and examine the structure of ORDER_ITEMS and ORDERS tables.You need to remove from the ORDER_ITEMS table those rows that have an order status of 0 or 1 inthe ORDERS table.Which two DELETE statements are valid? (Ch