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Oracle Introduction to Oracle9i: SQL Sample Questions:

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

2. The CUSTOMERS table has these columns:

A promotional sale is being advertised to the customers in France. Which WHERE clause identifies customers that are located in France?

A) WHERE lower(country_address) LIKE %france%
B) WHERE lower(country_address) = 'france'
C) WHERE lower(country_address) IS 'france'
D) WHERE lower(country_address) = '%france%'
E) WHERE lower(country_address) = "france"

3. The user Alice wants to grant all users query privileges on her DEPT table. Which SQL statement accomplishes this?

A) GRANT select ON dept TO ALL;
B) GRANT select ON dept TO PUBLIC;
C) GRANT select ON dept TO ALL_USERS;
D) GRANT QUERY ON dept TO ALL_USERS

4. Examine the structure of the EMPLOYEES table:

What is the correct syntax for an inline view?

A) SELECT a.last_name, a.salary, a.department_id,
B) SELECT a.last_name, a.salary, a.department_id
FROM employees a
WHERE a.salary =
(SELECT max(salary)
FROM employees b
WHERE a.department_id = b.department_id);
C) maxsal FROM employees a, (SELECT department_id, max(salary)maxsal FROM employees GROUP BY department_id) b WHERE a.department_id = b.department_id AND a.salary < b.maxsal;
D) SELECT a.last_name, a.salary, a.department_id
FROM employees a
WHERE (a.department_id, a.salary) IN
(SELECT department_id, a.salary) IN
(SELECT department_id max(salary)
FROM employees b
GROUP BY department_id
ORDER BY department_id);
E) SELECT a.last name, a.salary, a.department_id FROM employees a WHERE a.department_id IN (SELECT department_id FROM employees b GROUP BY department_id having salary = (SELECT max(salary) from employees))

5. Which data dictionary table should you query to view the object privileges granted to the user on specific columns?

A) USER_TAB_PRIVS
B) USER_COL_PRIVS_MADE
C) USER_TAB_PRIVS_MADE
D) USER_COL_PRIVS

Solutions: