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Oracle Introduction to Oracle9i: SQL Sample Questions:

1. Which three statements correctly describe the functions and use of constraints? (Choose three.)

A) Constraints prevent the deletion of an index if there are dependencies.
B) Constraints prevent the deletion of a table if there are dependencies.
C) Constraints enforce rules at the view level.
D) Constraints provide data independence.
E) Constraints make complex queries easy.
F) Constraints enforce rules at the table level.

2. Which four are types of functions available in SQL? (Choose 4)

A) character
B) translation
C) date
D) numeric
E) string
F) calendar
G) conversion
H) integer

3. Examine the structure if the EMPLOYEES table:

You need to create a view called EMP_VU that allows the user to insert rows through the view. Which SQL statement, when used to create the EMP_VU view, allows the user to insert rows?

A) CREATE VIEW emp_Vu AS
SELECT employee_id, emp_name, job_id,
DISTINCT department_id
FROM employees;
B) CREATE VIEW emp_Vu AS
SELECT employee_id, emp_name,
department_id
FROM employees
WHERE mgr_id IN (102, 120);
C) CREATE VIEW emp_Vu AS
SELECT employee_id, emp_name, job_id
department_id
FROM employees
WHERE mgr_id IN (102, 120);
D) CREATE VIEW emp_Vu AS
SELECT department_id, SUM(sal) TOTALSAL
FROM employees
WHERE mgr_id IN (102, 120)
GROUP BY department_id;

4. The CUSTOMERS table has these columns:

The CUSTOMER_ID column is the primary key for the table.
You need to determine how dispersed your customer base is.
Which expression finds the number of different countries represented in the CUSTOMERS table?

A) COUNT(DISTINCT (UPPER(country_address)))
B) COUNT(UPPER(country_address))
C) COUNT(DIFF(UPPER(country_address)))
D) COUNT(UNIQUE(UPPER(country_address)))
E) COUNT DISTINCT UPPER(country_address)

5. You need to perform these tasks:
1.Create and assign a MANAGER role to Blake and Clark
2.Grant CREATE TABLE and CREATE VIEW privileges to Blake and Clark
Which set of SQL statements achieves the desired results?

A) CREATE ROLE manager;
GRANT create table, create voew
TO manager;
GRANT manager ROLE TO BLAKE,CLARK;
B) CREATE ROLE manager;
GRANT create table, create view
TO manager;
GRANT manager TO BLAKE,CLARK;
C) GRANT manager ROLE TO BLAKE,CLARK;
GRANT create table, create voew
TO BLAKE CLARK;
***MISSING***

Solutions: