OCP 071中文考試題庫(kù)(cuug內(nèi)部資料)第28題
本套題庫(kù)是OCP考試中的071(中文版)試題，由CUUG整理，如有報(bào)考OCP認(rèn)證意向，可以聯(lián)系cuug咨詢老師。
28、請(qǐng)選擇最佳答案。
查看EMPLOYEES表的說明:
Name Null? Type
-------- ------- -------
EMPLOYEE_ID NOT NULL NUMBER(38)
SALARY NOT NULL NUMBER(38)
DEPARTMENT_ID NOT NULL NUMBER(38)
哪一條語(yǔ)句會(huì)將每個(gè)員工的SALARY增加其DEPARTMENT_ID的最低SALARY?
A) UPDATE employees e1
SET salary =
(SELECT e2.salary + MIN (e2.salary)
FROM employees e2
WHERE e1.department_id = e2.department_id
GROUP BY e2.department_id) ;
B) UPDATE employees e1
SET salary =
(SELECT e1.salary + MIN (e2.salary)
FROM employees e2
WHERE e1. department_id = e2.department_id) ;
C) UPDATE employees e1
SET salary = salary +
(SELECT MIN(e1.salary)
FROM employees e2
WHERE e1.department_id = e2.department_id) ;
D) UPDATE employees e1
SET salary = salary +
(SELECT MIN(salary)
FROM employees e2) ;
