Immediate delivery

"The Eternal pursuit, endless struggle." is the tenet of our company. That is why we are continuously in pursuit of improvement in our operation system.(1Z0-007 practice test: Introduction to Oracle9i: SQL) During the ten years, we have spent lots of time and energy on improving technology of our operation system in order to ensure the fastest delivery speed, and we have made great achievements now. We can assure you that you can get our 1Z0-007 exam preparation within 5 to 10 minutes after payment, that is to say you can start to prepare for the exam with the most effective and useful study materials in this field immediately after you pay for our 1Z0-007 study guide files.

First-class after sale service

Our Company have attached great importance to the quality of our 1Z0-007 exam preparation files, at the same time, we firmly believe that first-class service is the key for us to win customers in the international market, so our company will provide exquisite technology and strict quality control along with first-class after sale service to our customers. In other words, you really can feel free to contact with our after sale service staffs if you have any questions about our 1Z0-007 study guide files, we can ensure you that you will get the most patient as well as the most professional service from our staffs. If you feel excited about our advantages of our 1Z0-007 practice test: Introduction to Oracle9i: SQL you can take action so as to make great progress now.

After purchase, Instant Download: Upon successful payment, Our systems will automatically send the product you have purchased to your mailbox by email. (If not received within 12 hours, please contact us. Note: don't forget to check your spam.)

We believe that almost all of the workers who have noble aspirations in this field would hope to become more competitive in the job market (without 1Z0-007 practice test: Introduction to Oracle9i: SQL) and are willing to seize the opportunity as well as meeting the challenge to take part in the exam in your field since it is quite clear that the one who owns the related certification (1Z0-007 exam preparation) will have more chances to get better job than others. Nevertheless, the confusing and difficult questions in the exam serve as the tiger in the road. Now our company is here to provide the panacea for you—our 1Z0-007 study guide files. Our Introduction to Oracle9i: SQL certification training files have been rewarded as the most useful and effective study materials for the exam for nearly ten years. In order to let you have a better understanding of our company's products, I list some of the advantages of our 1Z0-007 practice exam files for you.

Preferential price

Even though the sales of our 1Z0-007 practice test: Introduction to Oracle9i: SQL have maintained the top position for more than 10 consecutive years, we are always trying our best to make our 1Z0-007 exam preparation files more valid and useful for all of the workers in this field who are preparing for the meaningful exam. In addition, offering discounts in some important festivals for our customers is another shining points of our 1Z0-007 study guide files. If you want to buy the high quality study material for the exam with the minimum amount of money, just choose our 1Z0-007 training materials: Introduction to Oracle9i: SQL. Do not hesitate anymore!

Oracle Introduction to Oracle9i: SQL Sample Questions:

1. Examine the data in the EMPLOYEES and DEPARTMENTS tables:

Also examine the SQL statements that create the EMPLOYEES and DEPARTMENTS tables:
CREATE TABLE departments
(department_id NUMBER PRIMARY KEY,
department_name VARCHAR2(30));
CREATE TABLE employees
(EMPLOYEE_ID NUMBER PRIMARY KEY,
EMP_NAME VARCHAR2(20),
DEPT_ID NUMBER REFERENCES
departments(department_id),
MGR_ID NUMBER REFERENCES
employees(employee id),
MGR_ID NUMBER REFERENCES
employees(employee id),
JOB_ID VARCHAR2(15).
SALARY NUMBER);
ON the EMPLOYEES,
On the EMPLOYEES table, EMPLOYEE_ID is the primary key.
MGR_ID is the ID of managers and refers to the EMPLOYEE_ID.
DEPT_ID is foreign key to DEPARTMENT_ID column of the DEPARTMENTS table.
On the DEPARTMENTS table, DEPARTMENT_ID is the primary key.
Examine this DELETE statement:
DELETE
FROM departments
WHERE department id = 40;
What happens when you execute the DELETE statement?

A) The row with department ID 40 is deleted in the DEPARTMENTS table. Also all the rows in the EMPLOYEES table are deleted.
B) The row with department ID 40 is deleted in the DEPARTMENTS table. Also the rows with employee IDs 106 and 110 and the employees working under employee 110 are deleted from the EMPLOYEES table.
C) Only the row with department ID 40 is deleted in the DEPARTMENTS table.
D) The statement fails because there are child records in the EMPLOYEES table with department ID 40.
E) The row with department ID 40 is deleted in the DEPARTMENTS table. Also the rows with employee IDs 110 and 106 are deleted from the EMPLOYEES table.
F) The statement fails because there are no columns specifies in the DELETE clause of the DELETE statement.

2. The ORDERS table has these columns:

The ORDERS table tracks the Order number, the order total, and the customer to whom the Order belongs. Which two statements retrieve orders with an inclusive total that ranges between 100.00 and 2000.00 dollars? (Choose two.)

A) SELECT customer_id, order_id, order_total FROM orders WHERE order_total >= 100 and order_total <= 2000;
B) SELECT customer_id, order_id, order_total FROM orders HAVING order_total BETWEEN 100 and 2000;
C) SELECT customer_id, order_id, order_total FROM orders WHERE order_total >= 100 and <= 2000;
D) SELECT customer_id, order_id, order_total FROM orders RANGE ON order_total (100 AND 2000) INCLUSIVE;
E) SELECT customer_id, order_id, order_total FROM orders WHERE order_total BETWEEN 100 and 2000;

3. Which two statements about subqueries are true? (Choose two.)

A) A subquery CANNOT be used in an SQL query statement that uses group functions.
B) A subquery can retrieve zero or more rows.
C) A subquery can be used only in SQL query statements.
D) A subquery should retrieve only one row.
E) Subqueries CANNOT be nested by more than two levels.
F) When a subquery is used with an inequality comparison operator in the outer SQL statement, the column list in the SELECT clause of the subquery should contain only one column.

4. EMPLOYEES and DEPARTMENTS data:

On the EMPLOYEES table, EMPLOYEE_ID is the primary key. MGR_ID is the ID
managers and refers to the EMPLOYEE_ID.
On the DEPARTMENTS table DEPARTMENT_ID is the primary key.
Evaluate this UPDATE statement.
UPDATE employees
SET mgr_id =
(SELECT mgr_id
FROM employees
WHERE dept_id=
(SELECT department_id
FROM departments
WHERE department_name = 'Administration')),
Salary = (SELECT salary
FROM employees
WHERE emp_name = 'Smith')
WHERE job_id = 'IT_ADMIN';
What happens when the statement is executed?

A) The statement fails because there is more than one row matching the employee name Smith.
B) The statement executes successfully, changes the manager ID to NULL, and changes the salary to 3000 for the employees with ID 103 and 105.
C) The statement executes successfully, changes the manager ID to NULL, and changes the salary to 4000 for the employees with ID 103 and 105.
D) The statement fails because there is more than one row matching the IT_ADMIN job ID in the EMPLOYEES table.
E) The statement fails because there is no 'Administration' department in the DEPARTMENTS table.
F) The statement executes successfully, leaves the manager ID as the existing value, and changes the salary to 4000 for the employees with ID 103 and 105.

5. You need to calculate the total of all salaries in the accounting department. Which group function should you use?

A) MIN
B) TOTAL
C) MAX
D) LARGEST
E) COUNT
F) SUM

Solutions: