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Code d'Examen: 310-814
Nom d'Examen: SUN (MySQL 5.0, 5.1 and 5.5 Certified Associate Exam)
Questions et réponses: 240 Q&As
Code d'Examen: 310-610
Nom d'Examen: SUN (EDS Certified Sun Fire Workgroup Administrator)
Questions et réponses: 139 Q&As
Code d'Examen: 310-066
Nom d'Examen: SUN (Upgrade EXAM for the Sun Certified for Java Programmer.SE6.0)
Questions et réponses: 96 Q&As
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NO.1 You work as a Database Administrator for a company. The company uses MySQL as its database
development platform. You have created a table named Employees in the database. You want to
display the names of the employees whose salary is more than $5000, but you do not want to
display any duplicate content. Therefore, you have written the following query:
SELECT emp_id, DISTINCT emp_name WHERE salary > 5000
FROM Employees;
Which of the following statements is true about the above query?
A. The statement will display only unique names whose salary is more than $5000.
B. The UNIQUE clause should be used in place of the DISTINCT clause.
C. The statement will give an error.
D. The statement will display those records whose salary is more than $5000.
Answer: C
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NO.2 Which of the following are true about UPDATE statements?
Each correct answer represents a complete solution. Choose all that apply.
A. You can use the WHERE clause to have your update affects a specific set of rows.
B. You use the SET clause to update multiple columns of a table separated by commas.
C. You can use co-related sub query in UPDATE statements to update data from other tables.
D. If you don't use the WHERE clause then the UPDATE will not update any rows in the table.
Answer: A,B,C
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NO.3 You work as a Database Administrator for a company. The company uses MySQL as the
database platform. You have created a table named Students in the database. The structure of the table is
as follows:
Stu_IDNUMBER (3) PRIMARY KEY
Stu_NameVARCHAR2 (25) NOT NULL
Fee NUMBER (8, 2)
Class NUMBER (5);
You have executed the following statement for the table "Students":
SELECT e.Stu_Name, m.Fee
FROM Students e, Students m
WHERE e.Stu_ID = m.stu_ID;
Which of the following join types have you used in the above statement?
A. Cross join
B. Equijoin
C. Self join
D. Outer join
Answer: C
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NO.4 DRAG DROP
Drag and drop the correct constraint types to their corresponding specifications.
Answer:
NO.5 You work as a Database Administrator for a company. The company uses MySQL as its database.
The database contains a table named Employees. You want to remove an index named
Emp_name_idx from the Employees table. Which of the following statements should you use to
accomplish the task?
A. DELETE INDEXEmp_name_idx;
B. CANCEL INDEXEmp_name_idx;
C. REMOVE INDEXEmp_name_idx;
D. DROP INDEXEmp_name_idx;
Answer: D
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NO.6 You work as a Database Administrator for a company. The company uses MySQL as its database.
You have written two statements, which are as follows:
1. SELECT DISTINCT OBJECT_TYPE
FROM USER_OBJECTS;
2. SELECT OBJECT_TYPE
FROM ALL_OBJECTS;
Which of the following options explains the difference between the results of these two
statements? Each correct answer represents a complete solution. Choose all that apply.
A. The first statement will display distinct object types that can be accessed by the user.
B. The second statement will display all object types that a user can access.
C. The first statement will display distinct object types owned by a user.
D. The second statement will display all object types owned by a user.
Answer: B,C
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NO.7 You work as a Database Administrator for a company. The company uses MySQL as its database.
You have created a table named Employees in the database. You want to create a list of
employees working in the organization, but you do not want to display any duplicate row in the
report. Which of the following statements will help you to accomplish the task?
A. SELECTemp_id, emp_name FROM Employees ORDER BY emp_id;
B. SELECTemp_id, emp_name FROM Employees;
C. SELECT DISTINCTemp_id, emp_name FROM Employees;
D. SELECTemp_id, emp_name FROM Employees GROUP BY emp_id;
Answer: C
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NO.8 Adam works as a Database Administrator for a company. He creates a table named Students. He wants
to create a new table named Class with the help of the Students table. Which of the
following syntaxes will Adam use to accomplish the task?
A. CREATE TABLE Class
INSERT INTO SELECT * FROM Students;
B. CREATE TABLE Class
FROM SELECT * FROM Students;
C. CREATE TABLE Class
(SELECT * FROM Students);
D. CREATE TABLE Class
AS SELECT * FROM Students;
Answer: D
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