OCP 071中文考试题库(cuug内部资料)第18题

admin

OCP 071中文考试题库(cuug内部资料)第18题

本套题库是OCP考试中的071(中文版)试题，由CUUG整理，如有报考OCP认证意向，可以联系cuug咨询老师。

18、请选择最佳答案。

查看以下成功执行的语句:

CREATE VIEW emp80 AS

SELECT *

FROM employees

WHERE department_id = 80

WITH CHECK OPTION;

哪条语句将违反CHECK约束条件?

A) SELECT *

FROM emp80

WHERE department_id = 90;

B) SELECT

FROM emp80

WHERE department_id = 80;

C) DELETE FROM emp80

WHERE department_id = 90;

D) UPDATE emp80

SET department_id = 90

WHERE department_id = 80;