OCP-1Z0-051-题目解析-第25题

25. You need to create a table with the following column specifications: 
1. Employee ID (numeric data type) for each employee 
2. Employee Name (character data type) that stores the employee name 
3. Hire date, which stores the date of joining the organization for each employee 
4. Status (character data type), that contains the value 'ACTIVE' if no data is entered 
5. Resume (character large object [CLOB] data type), which contains the resume submitted by the employee 
Which is the correct syntax to create this table? 


A. 
CREATE TABLE EMP_1         
(emp_id NUMBER(4),  
emp_name VARCHAR2(25),  
start_date DATE,  
e_status VARCHAR2(10) DEFAULT 'ACTIVE',  
resume CLOB(200));
 
B. 
CREATE TABLE 1_EMP         
(emp_id NUMBER(4),  
emp_name VARCHAR2(25),  
start_date DATE,  
emp_status VARCHAR2(10) DEFAULT 'ACTIVE',  
resume CLOB);
 
C.
 CREATE TABLE EMP_1        
(emp_id NUMBER(4),  
emp_name VARCHAR2(25),  
start_date DATE,  
emp_status VARCHAR2(10) DEFAULT "ACTIVE",  
resume CLOB); 


D. 
CREATE TABLE EMP_1         
(emp_id  NUMBER,  
emp_name VARCHAR2(25),  
start_date DATE,  
emp_status VARCHAR2(10) DEFAULT 'ACTIVE',  

resume CLOB); 

Answer: D 

A：错误，CLOB类型不须要定义长度
B：错误，表名不能以数字开头
C：错误。字符串是以单引號开头和结束的
D：正确