摘要:本文主要向大家介绍了Oracle数据库之【OCP题库-12c】最新CUUG OCP 071考试题库(72题),通过具体的内容向大家展现,希望对大家学习Oracle数据库有所帮助。
本文主要向大家介绍了Oracle数据库之【OCP题库-12c】最新CUUG OCP 071考试题库(72题),通过具体的内容向大家展现,希望对大家学习Oracle数据库有所帮助。
72、View the exhibit for the structure of the STUDENTand FACULTYtables.
STUDENT
Name Null? Type
STUDENT_ID NOT NULL NUMBER(2)
STUDENT_NAME VARCHAR2(20)
FACULTY_ID VARCHAR2(2)
LOCATION_ID NUMBER(2)
FACULTY
Name Null? Type
FACULTY_ID NOT NULL NUMBER(2)
FACULTY_NAME VARCHAR2(20)
LOCATION_ID NUMBER(2)
You need to display the faculty name followed by the number of students handled by the faculty at the base location.
Examine the following two SQL statements:
Statement 1
SQL>SELECT faculty_name, COUNT(student_id)
FROM student JOIN faculty
USING (faculty_id, location_id)
GROUP BY faculty_name;
Statement 2
SQL>SELECT faculty_name, COUNT(student_id)
FROM student NATURAL JOIN faculty
GROUP BY faculty_name;
Which statement is true regarding the outcome?
A. Only statement 2 executes successfully and gives the required result.
B. Only statement 1 executes successfully and gives the required result.
C. Both statements 1 and 2 execute successfully and give different results.
D. Both statements 1 and 2 execute successfully and give the same required result.
Correct Answer: A
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