STARTING OUT W/JAVA PLUS ACCESS >IP<
19th Edition
ISBN: 9780135396094
Author: MUGANDA
Publisher: PEARSON EDUCATION (COLLEGE)
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Textbook Question
Chapter 3, Problem 6SA
What risk does a programmer take when not placing a trailing else at the end of an if-else-if statement?
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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 3 Solutions
STARTING OUT W/JAVA PLUS ACCESS >IP<
Ch. 3.1 - Write an if statement that assigns 0 to x when y...Ch. 3.1 - Write an if statement that multiplies payRate by...Ch. 3.1 - Write an if statement that assigns 0.2 to...Ch. 3.1 - Write an if statement that sets the variable fees...Ch. 3.1 - Write an if statement that assigns 20 to the...Ch. 3.1 - Write an if statement that assigns 0 to the...Ch. 3.1 - Write an if statement that displays Goodbye if the...Ch. 3.2 - Write an if-else statement that assigns 20 to the...Ch. 3.2 - Write an if-else statement that assigns 1 to x...Ch. 3.2 - Write an if-else statement that assigns 0.10 to...
Ch. 3.2 - Write an if-else statement that assigns 0 to the...Ch. 3.3 - Write nested if statements that perform the...Ch. 3.3 - Write code that tests the variable x to determine...Ch. 3.4 - What will the following program display? public...Ch. 3.4 - The following program is used in a bookstore to...Ch. 3.5 - Prob. 3.16CPCh. 3.5 - Assume the variables a = 2, b = 4, and c = 6....Ch. 3.5 - Write an if statement that displays the message...Ch. 3.5 - Write an if statement that displays the message...Ch. 3.6 - Assume the variable name references a String...Ch. 3.6 - Prob. 3.21CPCh. 3.6 - Prob. 3.22CPCh. 3.8 - Rewrite the following if-else statements as...Ch. 3.9 - Complete the following program skeleton by writing...Ch. 3.9 - Rewrite the following if-else-if statement as a...Ch. 3.9 - Explain why you cannot convert the following...Ch. 3.9 - What is wrong with the following switch statement?...Ch. 3.9 - What will the following code display? int funny =...Ch. 3.10 - Assume the following variable declaration exists...Ch. 3.10 - Assume the following variable declaration exists...Ch. 3.10 - Assume the following variable declaration exists...Ch. 3.10 - Prob. 3.32CPCh. 3.10 - Prob. 3.33CPCh. 3.10 - Assume the following declaration exists in a...Ch. 3 - The if statement is an example of a __________. a....Ch. 3 - This type of expression has a value of either true...Ch. 3 - , , and = = are __________. a. relational...Ch. 3 - , | |, and ! are __________. a. relational...Ch. 3 - Prob. 5MCCh. 3 - To create a block of statements, you enclose the...Ch. 3 - This is a boolean variable that signals when some...Ch. 3 - How does the character A compare to the character...Ch. 3 - This is an if statement that appears inside...Ch. 3 - Prob. 10MCCh. 3 - When determining whether a number is inside a...Ch. 3 - Prob. 12MCCh. 3 - The conditional operator takes this many operands....Ch. 3 - This section of a switch statement is branched to...Ch. 3 - You can use this method to display formatted...Ch. 3 - True or False: The = operator and the == operator...Ch. 3 - True or False: A conditionally executed statement...Ch. 3 - Prob. 18TFCh. 3 - True or False: When an if statement is nested in...Ch. 3 - True or False: When an if statement is nested in...Ch. 3 - True or False: The scope of a variable is limited...Ch. 3 - Find the errors in the following code: 1. //...Ch. 3 - Find the errors in the following code: 2. //...Ch. 3 - Find the errors in the following code: 3. //...Ch. 3 - Prob. 4FTECh. 3 - Find the errors in the following code: 5. The...Ch. 3 - Find the errors in the following code: 6. The...Ch. 3 - The following statement should determine whether...Ch. 3 - Find the errors in the following code: 8. The...Ch. 3 - Prob. 9FTECh. 3 - Prob. 10FTECh. 3 - Write an if statement that assigns 100 to x when y...Ch. 3 - Write an if-else statement that assigns 0 to x...Ch. 3 - Using the following chart, write an if-else-if...Ch. 3 - Write an if statement that sets the variable hours...Ch. 3 - Write nested if statements that perform the...Ch. 3 - Write an if statement that prints the message The...Ch. 3 - Write an if statement that prints the message The...Ch. 3 - Write an if statement that prints the message The...Ch. 3 - Write an if-else statement that displays the...Ch. 3 - Convert the following if-else-if statement into a...Ch. 3 - Match the conditional expression with the if-else...Ch. 3 - Prob. 12AWCh. 3 - Prob. 13AWCh. 3 - Prob. 14AWCh. 3 - Explain what is meant by the phrase conditionally...Ch. 3 - Explain why a misplaced semicolon can cause an if...Ch. 3 - Why is it good advice to indent all the statements...Ch. 3 - What happens when you compare two String objects...Ch. 3 - Explain the purpose of a flag variable. Of what...Ch. 3 - What risk does a programmer take when not placing...Ch. 3 - Briefly describe how the operator works.Ch. 3 - Briefly describe how the | | operator works.Ch. 3 - Why are the relational operators called...Ch. 3 - When does a constructor execute? What is its...Ch. 3 - Roman Numerals Write a program that prompts the...Ch. 3 - Magic Dates The date June 10, 1960, is special...Ch. 3 - Body Mass Index Write a program that calculates...Ch. 3 - Test Scores and Grade Write a program that has...Ch. 3 - Mass and Weight Scientists measure an objects mass...Ch. 3 - Time Calculator Write a program that asks the user...Ch. 3 - Sorted Names Write a program that asks the user to...Ch. 3 - Software Sales A software company sells a package...Ch. 3 - Shipping Charges The Fast Freight Shipping Company...Ch. 3 - Fat Gram Calculator Write a program that asks the...Ch. 3 - Running the Race Write a program that asks for the...Ch. 3 - The Speed of Sound The following table shows the...Ch. 3 - Mobile Service Provider A mobile phone service...Ch. 3 - Mobile Service Provider, Part 2 Modify the program...Ch. 3 - Bank Charges A bank charges a base fee of 10 per...Ch. 3 - Book Club Points Serendipity Booksellers has a...Ch. 3 - Wi-Fi Diagnostic Tree Figure 3-23 shows a...Ch. 3 - Restaurant Selector You have a group of friends...
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