071考试既是ocp11g的考试科目,又是ocp12c的考试科目,所以关注的人很多,由于071考试题多变,我们专门收集了近期的071考试原题,并对071考试进行了讲解,分享给大家。
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071考试原题-第21题、choose the best answer
View the Exhibit and examine the description of the EMPLOYEES table.
You want to calculate the total remuneration for each employee. Total remuneration is the sum of the annual salary and the percentage commission earned for a year.
Only a few employees earn commission.
Which SQL statement would you execute to get the desired output?
A) SELECT first_name, salary, salary*12 + NVL(salary, 0)*commission_pct "Total"
FROM EMPLOYEES;
B) SELECT first_name, salary, salary*12+(salary*NVL2(commission_pct,
salary,salary+commission_pct)) "Total"
FROM EMPLOYEES;
C) SELECT first_name, salary, (salary + NVL(commission_pct,0)*salary)*12 "Total"
FROM EMPLOYEES;
D) SELECT first_name, salary, salary*12+salary*commission_pct "Total"
FROM EMPLOYEES;
Answer:A
(解析:题眼是“Only a few employees earn commission”,说明有人的佣金是 null,所
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