【優(yōu)技教育】Oracle 19c OCP 082題庫(kù)(Q 18題)- 2024年修正版
考試科目：1Z0-082
考試題量：90
通過(guò)分?jǐn)?shù)：60%
考試時(shí)間：150min
本文為(CUUG 原創(chuàng))整理并解析，轉(zhuǎn)發(fā)請(qǐng)注明出處，禁止抄襲及未經(jīng)注明出處的轉(zhuǎn)載。
原文地址：http://www.cuug.com.cn/ocp/082kaoshitiku/38219540954.html
第18題：
Q 18、
Choose the best answer.
Examine the description of the EMPLOYEES table:
Name Null? Type
-------------------------------------------------------------
EMPLOYEE_ID NOT NULL NUMBER(4)
EMPLOYEE_NAME NOT NULL VARCHAR2 (100)
SALARY NOT NULL NUMBER(6,2) .
DEPARTMENT_ID NOT NULL NUMBER(4)
Which statement will fail?
A) SELECT department_id, COUNT(*)
FROM employees
WHERE department_id <> 90
HAVING COUNT(*) >= 3
GROUP BY department_id;
B) SELECT department_id, COUNT (*)
FROM employees
WHERE department_id <> 90
AND COUNT(*) >= 3
GROUP BY department_id;
C) SELECT department_id, COUNT (*)
FROM employees
WHERE department_id < 90
GROUP BY department_id
HAVING COUNT(*) >= 3;
D) SELECT department_id, COUNT (*)
FROM employees
HAVING department_id < 90
AND COUNT(*) >= 3
GROUP BY department_id;
Answer：B
(解析：D 答案是出人意料可以執(zhí)行成功，原因是 having 放在了前面，它是 having 語(yǔ)句中的 and 條件，所以允許用到分組函數(shù)。)
Oracle 19c OCP認(rèn)證需要到Oracle指定的WDP機(jī)構(gòu)，有了培訓(xùn)記錄之后才能考試，考試需要考2科，分別是082(60%及格)和083(57%及格)，兩科都通過(guò)之后才能拿到證書。證書如下：
CUUG是甲骨文的金牌WDP合作機(jī)構(gòu)，30多年品牌，培養(yǎng)了數(shù)萬(wàn)名數(shù)據(jù)庫(kù)人才。想快速通過(guò)19c OCP考試的同學(xué)可以掃碼聯(lián)系老師咨詢。
