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Oracle Introduction to Oracle9i: SQL Sample Questions:

1. You need to create a table named ORDERS that contain four columns:
1.an ORDER_ID column of number data type
2.a CUSTOMER_ID column of number data type
3.an ORDER_STATUS column that contains a character data type
4.a DATE_ORDERED column to contain the date the order was placed.
When a row is inserted into the table, if no value is provided when the order was placed,
today's date should be used instead.
Which statement accomplishes this?

A) CREATE TABLE orders (
order_id NUMBER (10),
customer_id NUMBER (8),
order_status VARCHAR2 (10),
date_ordered DATE = SYSDATE);
B) CREATE TABLE orders (
order_id NUMBER (10),
customer_id NUMBER (8),
order_status NUMBER (10),
date_ordered DATE = SYSDATE);
C) CREATE TABLE orders (
order_id NUMBER (10),
customer_id NUMBER (8),
order_status NUMBER (10),
date_ordered DATE DEFAULT SYSDATE);
D) CREATE OR REPLACE TABLE orders (
order_id NUMBER (10),
customer_id NUMBER (8),
order_status VARCHAR2 (10),
date_ordered DATE DEFAULT SYSDATE);
E) CREATE OR REPLACE TABLE orders (
order_id NUMBER (10),
customer_id NUMBER (8),
order_status VARCHAR2 (10),
date_ordered DATE = SYSDATE);
F) CREATE TABLE orders (
order_id NUMBER (10),
customer_id NUMBER (8),
order_status VARCHAR2 (10),
date_ordered DATE DEFAULT SYSDATE);

2. Examine the SQL statements that create ORDERS table:

For which columns would an index be automatically created when you execute the above
SQL statement? (Choose two)

A) PROD_ID
B) STATUS
C) Composite index on ORDER_ID and ORDER_DATE
D) SER_NO
E) ORD_TOTAL
F) ORDER_ID

3. 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***

4. 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);
B) CREATE FORCE VIEW emp_vu AS
SELECT *
FROM employees
WHERE department_id IN (10,20)
NO UPDATE;
C) CREATE VIEW emp_vu AS
SELECT *
FROM employees
WHERE department_id IN (10,20)
WITH CHECK OPTION;
D) CREATE VIEW emp_vu AS
SELECT *
FROM employees
WHERE department_id IN (10,20)
WITH READ ONLY;
E) CREATE FORCE VIEW emp_vu AS
SELECT *
FROM employees
WHERE department_id IN (10,20);

5. Examine the description of the EMPLOYEES table:
EMP_ID NUMBER(4) NOT NULL
LAST_NAME VARCHAR2(30) NOT NULL
FIRST_NAME VARCHAR2(30)
DEPT_ID NUMBER(2)
Which statement produces the number of different departments that have employees with last name Smith?

A) SELECT COUNT(*) FROM employees WHERE last_name='Smith';
B) SELECT COUNT(DISTINCT dept_id) FROM employees WHERE last_name='Smith';
C) SELECT COUNT (dept_id) FROM employees WHERE last_name='Smith';
D) SELECT DISTINCT(COUNT(dept_id)) FROM employees WHERE last_name='Smith';
E) SELECT UNIQUE(dept_id) FROM employees WHERE last_name='Smith';

Solutions: