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;