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Oracle Introduction to Oracle9i: SQL Sample Questions:

1. What are two reasons to create synonyms? (Choose two.)

A) You have too many columns in your tables.
B) You want to work on your own tables.
C) Your tables names are too long.
D) Your tables have difficult names.
E) You want to use another schema's tables.
F) You have too many tables.

2. Evaluate the SQL statement:
TRUNCATE TABLE DEPT;
Which three are true about the SQL statement? (Choose three.)

A) You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table
B) You can roll back the deletion of rows after the statement executes.
C) An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.
D) It does not release the storage space used by the table.
E) You can NOT roll back the deletion of rows after the statement executes.
F) It releases the storage space used by the table.

3. You need to create a view EMP_VU. The view should allow the users to manipulate the records of only the employees that are working for departments 10 or 20.
Which SQL statement would you use to create the view EMP_VU?

A) CREATE VIEW emp_vu AS
SELECT *
FROM employees
WHERE department_id IN (10,20)
WITH READ ONLY;
B) CREATE VIEW emp_vu AS
SELECT *
FROM employees
WHERE department_id IN (10,20)
WITH CHECK OPTION;
C) CREATE FORCE VIEW emp_vu AS
SELECT *
FROM employees
WHERE department_id IN (10,20)
NO UPDATE;
D) CREATE FORCE VIEW emp_vu AS
SELECT *
FROM employees
WHERE department_id IN (10,20);
E) CREATE VIEW emp_vu AS
SELECT *
FROM employees
WHERE department_id IN (10,20);

4. Evaluate this SQL statement:
SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct)
+ (s.sales amount * (.35 * e.bonus)) AS CALC_VALUE FROM employees e, sales s WHERE e.employee_id = s.emp_id;
What will happen if you remove all the parentheses from the calculation?

A) The value displayed in the CALC_VALUE column will be higher.
B) There will be no difference in the value displayed in the CALC_VALUE column.
C) The value displayed in the CALC_VALUE column will be lower.
D) An error will be reported.

5. Which statement creates a new user?

A) CREATE NEW USER susan IDENTIFIED by blue;
B) CREATE USER susan;
C) CREATE USER susan IDENTIFIED BY blue;
D) CREATE NEW USER susan DEFAULT;
E) CREATE OR REPLACE USER susan IDENTIFIED BY blue;
F) CREATE OR REPLACE USER susan;

Solutions: