Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
5th Edition
ISBN: 9780134801407
Author: GADDIS
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 16MC
Assigning a value to a variable in a declaration statement is called _____.
- a. allocation
- b. initialization
- c. certification
- d.
programming style
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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
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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'.
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عرفته شنو الحل
e. Add one book as variables data?
عرفته شنو الحل
Chapter 2 Solutions
Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
Ch. 2.1 - Who is a programmers customer?Ch. 2.1 - What is a software requirement?Ch. 2.1 - What is an algorithm?Ch. 2.1 - What is pseudocode?Ch. 2.1 - Prob. 2.5CPCh. 2.1 - Prob. 2.6CPCh. 2.2 - Prob. 2.7CPCh. 2.2 - Prob. 2.8CPCh. 2.2 - What is a sequence structure?Ch. 2.2 - Prob. 2.10CP
Ch. 2.2 - Prob. 2.11CPCh. 2.2 - Prob. 2.12CPCh. 2.2 - Summarize three common rules for naming variables.Ch. 2.2 - Prob. 2.14CPCh. 2.2 - Look at the following pseudocode statement: Input...Ch. 2.2 - Prob. 2.16CPCh. 2.2 - Prob. 2.17CPCh. 2.2 - What two steps usually take place when a program...Ch. 2.2 - What does the term user-friendly mean?Ch. 2.3 - Prob. 2.20CPCh. 2.3 - When you assign a value to a variable, what...Ch. 2.3 - Summarize the mathematical order of operations, as...Ch. 2.3 - Prob. 2.23CPCh. 2.3 - Prob. 2.24CPCh. 2.4 - What two items do you usually specify with a...Ch. 2.4 - Does it matter where you write the variable...Ch. 2.4 - What is variable initialization?Ch. 2.4 - Prob. 2.28CPCh. 2.4 - What is an uninitialized variable?Ch. 2.7 - Prob. 2.30CPCh. 2.7 - Prob. 2.31CPCh. 2.7 - Prob. 2.32CPCh. 2 - A error does not prevent the program from running,...Ch. 2 - Prob. 2MCCh. 2 - A(n) _______ is a set of well-defined logical...Ch. 2 - An informal language that has no syntax rules, and...Ch. 2 - A ____ is a diagram that graphically depicts the...Ch. 2 - Prob. 6MCCh. 2 - Prob. 7MCCh. 2 - Prob. 8MCCh. 2 - Prob. 9MCCh. 2 - A(n) _____ is a message that tells (or asks) the...Ch. 2 - A(n) ________ sets a variable to a specified...Ch. 2 - In the expression 12 + 7, the values on the right...Ch. 2 - A(n) _____ operator raises a number to a power. a....Ch. 2 - A(n) _________ operator performs division, but...Ch. 2 - A(n) ____ specifies a variable's name and data...Ch. 2 - Assigning a value to a variable in a declaration...Ch. 2 - Prob. 17MCCh. 2 - Prob. 18MCCh. 2 - A debugging process in which you imagine that you...Ch. 2 - Prob. 20MCCh. 2 - Programmers must be careful not to make syntax...Ch. 2 - In a math expression, multiplication and division...Ch. 2 - Variable names can have spaces in them.Ch. 2 - In most languages, the first character of a...Ch. 2 - Prob. 5TFCh. 2 - In languages that require variable declarations, a...Ch. 2 - Uninitialized variables are a common cause of...Ch. 2 - The value of a named constant cannot be changed...Ch. 2 - Hand tracing is the process of translating a...Ch. 2 - Prob. 10TFCh. 2 - What does a professional programmer usually do...Ch. 2 - What is pseudocode?Ch. 2 - Computer programs typically perform what three...Ch. 2 - What does the term user-friendly mean?Ch. 2 - What two things must you normally specify in a...Ch. 2 - What value is stored in uninitialized variables?Ch. 2 - Design an algorithm that prompts the user to enter...Ch. 2 - Design an algorithm that prompts the user to enter...Ch. 2 - Write assignment statements that perform the...Ch. 2 - Assume the variables result, x, y, and z are all...Ch. 2 - Write a pseudocode statement that declares the...Ch. 2 - Write a pseudocode statement that declares the...Ch. 2 - Write a pseudocode statement that assigns the...Ch. 2 - Write a pseudocode statement that assigns the sum...Ch. 2 - Write a pseudocode statement that subtracts the...Ch. 2 - Write a pseudocode statement that multiplies the...Ch. 2 - If the following pseudocode were an actual...Ch. 2 - Prob. 12AWCh. 2 - If the following pseudocode were an actual...Ch. 2 - If the programmer translates the following...Ch. 2 - The following code will not display the results...Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Find the error in the following pseudocode....Ch. 2 - Personal Information Design a program that...Ch. 2 - Sales Prediction A company has determined that its...Ch. 2 - Land Calculation One acre of land is equivalent to...Ch. 2 - Total Purchase A customer in a store is purchasing...Ch. 2 - Distance Traveled Assuming there are no accidents...Ch. 2 - Sales Tax Design a program that will ask the user...Ch. 2 - Miles-per-Gallon A cars miles-per-gallon (MPG) can...Ch. 2 - Tip, Tax, and Total Design a program that...Ch. 2 - Weight Loss If a moderately active person cuts...Ch. 2 - Amount Paid Over Time A person pays a fixed amount...Ch. 2 - Leftover Pizza Youre planning a pizza party and...Ch. 2 - Celsius to Fahrenheit Temperature Converter Design...Ch. 2 - Stock Transaction Program Last month Joe purchased...Ch. 2 - Cookie Calories A bag of cookies holds 40 cookies....Ch. 2 - Male and Female Percentages Design a program that...Ch. 2 - Ingredient Adjuster A cookie recipe calls for the...
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