2018年的OCP 11g题库解析暂告一段落,关于12c的OCP解析公开课正在进行中,课程包括071、062、063三个科目,这里为您带来的是最新版的071考试题库解析,帮大家顺利通过OCP的071考试。
-------------------------------------------------------
071考题大全-第26题、choose two:
You executed the following CREATE TABLE statement that resulted in an error:
SQL> CREATE TABLE employees(
emp_id NUMBER(10) PRIMARY KEY,
ename VARCHAR2(20),
email NUMBER(3) UNIQUE,
address VARCHAR2(500),
phone VARCHAR2 (20),
resume LONG,
hire_date DATE,
remarks LONG,
dept_id NUMBER(3) CONSTRAINT emp_dept_id_fk REFERENCES departments(dept_id) ,
CONSTRAINT ename_nn NOT NULL(ename));
Identify two reasons for the error.
A) The PRIMARY KEY constraint in the EMP_ID column must have a name and must be defined at the table level only.
B) The FOREIGN KEY keyword is missing in the constraint definition.
C) Only one LONG column can be used per table.
D) FOREIGN KEY defined on the DEPT_ID column must be at the table level only.
E) The NOT NULL constraint on the ENAME column must be defined at the column level.
Answer:CE
-----------------------------------------------
OCP解析公开课时间:【每周五晚8点】
OCP解析公开课地址:https://ke.qq.com/course/326223
OCP解析群资料分享:1015267481 验证:ocp
另外,除了OCP公开课,OCM题库直播也同步进行中,OCM最新题库大爆料-【每周四晚8点】,【微信群直播】,可以联系咨询老师进群参与