OCP 071中文考试题库-第1题

OCP 071中文考试题库（cuug内部资料）第1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。

1、请选择两项。

查看EMPLOYEES表的说明:

Name Null? Type

---

EMPLOYEE_ID NOT NULL NUMBER(3),

FIRST_NAME VARCHAR2 (15)

LAST_NAME NOT NULL VARCHAR2 (15)

SALARY NUMBER(6, 2)

哪两条语句将成功运行?

A) SELECT 'The first_name is ' ' ' || first_name || ' ' ' FROM employees;

B) SELECT 'The first_name is ' || first_name || ' ' FROM employees;

C) SELECT 'The first_name is ' ' || first_name || ' ' FROM employees;

D) SELECT 'The first_name is ' ' ' || first_name || ' ' ' ' FROM employees;

E) SELECT 'The first_name is \' ' || first_name || '\' ' FROM employees;