Principles of Information Systems (MindTap Course List)
12th Edition
ISBN: 9781285867168
Author: Ralph Stair, George Reynolds
Publisher: Cengage Learning
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Chapter 13, Problem 2DQ
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System and security controls used in smartphones and tablets of medium sized businesses:
- The smartphones and tablets are secured by using the login authentication or password protection to access them.
- They must be sure about the inaccessibility of unauthorized users.
- The passwords must be encrypted to gain high security...
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Q4: Consider the following MAILORDER relational schema describing the data for a mail order
company. (Choose five only).
PARTS(Pno, Pname, Qoh, Price, Olevel)
CUSTOMERS(Cno, Cname, Street, Zip, Phone)
EMPLOYEES(Eno, Ename, Zip, Hdate)
ZIP CODES(Zip, City)
ORDERS(Ono, Cno, Eno, Received, Shipped)
ODETAILS(Ono, Pno, Qty)
(10 Marks)
I want a detailed explanation to
understand the mechanism how it is
Qoh stands for quantity on hand: the other attribute names are self-explanatory. Specify and
execute the following queries using the RA interpreter on the MAILORDER database schema.
a. Retrieve the names of parts that cost less than $20.00.
b. Retrieve the names and cities of employees who have taken orders for parts costing more than
$50.00.
c. Retrieve the pairs of customer number values of customers who live in the same ZIP Code.
d. Retrieve the names of customers who have ordered parts from employees living in Wichita.
e. Retrieve the names of customers who have ordered parts costing less…
Q4: Consider the following MAILORDER relational schema describing the data for a mail order
company. (Choose five only).
(10 Marks)
PARTS(Pno, Pname, Qoh, Price, Olevel)
CUSTOMERS(Cno, Cname, Street, Zip, Phone)
EMPLOYEES(Eno, Ename, Zip, Hdate)
ZIP CODES(Zip, City)
ORDERS(Ono, Cno, Eno, Received, Shipped)
ODETAILS(Ono, Pno, Qty)
Qoh stands for quantity on hand: the other attribute names are self-explanatory. Specify and
execute the following queries using the RA interpreter on the MAILORDER database schema.
a. Retrieve the names of parts that cost less than $20.00.
b. Retrieve the names and cities of employees who have taken orders for parts costing more than
$50.00.
c. Retrieve the pairs of customer number values of customers who live in the same ZIP Code.
d. Retrieve the names of customers who have ordered parts from employees living in Wichita.
e. Retrieve the names of customers who have ordered parts costing less than$20.00.
f. Retrieve the names of customers who have not placed…
ut
da
Q4: Consider the LIBRARY relational database schema shown in Figure below
a. Edit Author_name to new variable name where previous
surname was 'Al - Wazny'.
Update book_Authors
set Author_name = 'alsaadi'
where Author_name = 'Al - Wazny'
b. Change data type of Phone to string instead
of numbers.
عرفنه شنو الحل
BOOK
Book id Title Publisher_name
BOOK AUTHORS
Book id Author_name
PUBLISHER
Name Address Phone
e u
al b
are
rage
c. Add two Publishers Company existed in UK.
insert into publisher(name, address, phone)
value('ali','uk',78547889), ('karrar', 'uk', 78547889)
d. Remove all books author when author name contains second character 'D' and ending by
character 'i'.
es inf
rmar
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tic
عرفته شنو الحل
e. Add one book as variables data?
عرفته شنو الحل
Chapter 13 Solutions
Principles of Information Systems (MindTap Course List)
Ch. 13.4 - Software companies are continually improving...Ch. 13.4 - Prob. 2DQCh. 13.4 - Prob. 1CTQCh. 13.4 - Prob. 2CTQCh. 13.6 - Prob. 1DQCh. 13.6 - Prob. 2DQCh. 13.6 - Prob. 1CTQCh. 13.6 - Prob. 2CTQCh. 13 - Prob. 1SATCh. 13 - The _______ is an example of a systems development...
Ch. 13 - _______ is a form of testing that involves linking...Ch. 13 - Prob. 4SATCh. 13 - During user acceptance testing (UAT), the system...Ch. 13 - Prob. 6SATCh. 13 - Prob. 7SATCh. 13 - Prob. 8SATCh. 13 - _______ is the process of analysing systems to...Ch. 13 - Prob. 10SATCh. 13 - Prob. 11SATCh. 13 - Prob. 12SATCh. 13 - Prob. 13SATCh. 13 - ________ is an iterative system development...Ch. 13 - Prob. 15SATCh. 13 - Prob. 16SATCh. 13 - Prob. 17SATCh. 13 - Prob. 1RQCh. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Prob. 9RQCh. 13 - Prob. 10RQCh. 13 - Prob. 11RQCh. 13 - Prob. 12RQCh. 13 - Prob. 13RQCh. 13 - Prob. 14RQCh. 13 - Prob. 1DQCh. 13 - Prob. 2DQCh. 13 - Prob. 3DQCh. 13 - Prob. 4DQCh. 13 - Prob. 5DQCh. 13 - Prob. 6DQCh. 13 - Prob. 7DQCh. 13 - Prob. 8DQCh. 13 - Prob. 9DQCh. 13 - Prob. 10DQCh. 13 - Prob. 11DQCh. 13 - Prob. 12DQCh. 13 - Prob. 13DQCh. 13 - Prob. 1TACh. 13 - Prob. 2TACh. 13 - Prob. 3TACh. 13 - Prob. 1WECh. 13 - Prob. 2WECh. 13 - Prob. 1CECh. 13 - Prob. 2CECh. 13 - Prob. 1DQ1Ch. 13 - Prob. 2DQ1Ch. 13 - Prob. 1CTQ1Ch. 13 - Prob. 2CTQ1Ch. 13 - Prob. 1DQ2Ch. 13 - Prob. 2DQ2Ch. 13 - Prob. 1CTQ2Ch. 13 - Prob. 2CTQ2Ch. 13 - Prob. 1DQ3Ch. 13 - Prob. 2DQ3Ch. 13 - Prob. 1CTQ3Ch. 13 - Prob. 2CTQ3
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