Starting out with Visual C# (4th Edition)
4th Edition
ISBN: 9780134382609
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 8SA
Can Boolean methods be used to modularize input validation? Why or why not?
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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
nce 1
tic
عرفته شنو الحل
e. Add one book as variables data?
عرفته شنو الحل
Chapter 6 Solutions
Starting out with Visual C# (4th Edition)
Ch. 6.2 - What is the difference between a void method and a...Ch. 6.2 - Prob. 6.2CPCh. 6.2 - Prob. 6.3CPCh. 6.2 - Prob. 6.4CPCh. 6.2 - Prob. 6.5CPCh. 6.3 - Prob. 6.6CPCh. 6.3 - Briefly summarize how assignment compatibility...Ch. 6.3 - Prob. 6.8CPCh. 6.3 - What is a named argument?Ch. 6.3 - Prob. 6.10CP
Ch. 6.4 - Prob. 6.11CPCh. 6.4 - Prob. 6.12CPCh. 6.4 - Prob. 6.13CPCh. 6.4 - Prob. 6.14CPCh. 6.5 - What is a value-returning method? How is it used?Ch. 6.5 - Prob. 6.16CPCh. 6.5 - Can a method be written to return any type of...Ch. 6 - In general terms, a program that is broken into...Ch. 6 - Prob. 2MCCh. 6 - When you call a(n) __________, it simply executes...Ch. 6 - Prob. 4MCCh. 6 - Prob. 5MCCh. 6 - The __________ is the memory address that is saved...Ch. 6 - Programmers commonly use a technique known as...Ch. 6 - Prob. 8MCCh. 6 - Prob. 9MCCh. 6 - A __________ specifies which parameter an argument...Ch. 6 - When a(n)__________ is provided for a parameter,...Ch. 6 - When an argument is __________, only a copy of the...Ch. 6 - Prob. 13MCCh. 6 - Prob. 14MCCh. 6 - Prob. 15MCCh. 6 - Prob. 16MCCh. 6 - Dividing a large problem into several smaller...Ch. 6 - In a Pascal case name, the first character is...Ch. 6 - Prob. 3TFCh. 6 - The contents of variables and the values of...Ch. 6 - You do not have to write the data type for each...Ch. 6 - An output parameter works like a by value...Ch. 6 - Prob. 7TFCh. 6 - A Boolean method returns either yes or no.Ch. 6 - Prob. 1SACh. 6 - Prob. 2SACh. 6 - What is another name for the top-down design...Ch. 6 - Prob. 4SACh. 6 - How do you specify a named argument?Ch. 6 - Prob. 6SACh. 6 - How is a value-returning method like a void...Ch. 6 - Can Boolean methods be used to modularize input...Ch. 6 - Examine the following method header; then write an...Ch. 6 - The following statement calls a method named...Ch. 6 - Write the method header for a method named...Ch. 6 - Examine the following method header; then write an...Ch. 6 - A program contains the following value-returning...Ch. 6 - Retail Price Calculator Create an application that...Ch. 6 - Falling Distance When an object is falling because...Ch. 6 - Kinetic Energy In physics, an object that is in...Ch. 6 - Calories from Fat and Carbohydrates A nutritionist...Ch. 6 - Joes Automotive Joes Automotive performs the...Ch. 6 - Hospital Charges Create an application that...Ch. 6 - Present Value Suppose you want to deposit a...Ch. 6 - Prime Numbers A prime number is a number that can...Ch. 6 - Prime Number List This exercise assumes you have...Ch. 6 - Rock, Paper, Scissors Game Create an application...
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