Starting Out with C++ from Control Structures to Objects, Student Value Edition (9th Edition)
9th Edition
ISBN: 9780134443829
Author: Tony Gaddis
Publisher: PEARSON
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Expert Solution & Answer
Chapter 11, Problem 2RQE
Explanation of Solution
Structure declaration:
In C++, the structure is a user-defined data type, which is declared by different type of elements with different lengths.
- The size of the structure is calculated by the total number of elements which is declared in a structure.
- The members of a structure can be accessed by creating a structure variable; the declaration of a structure does not cause a structure variable to be created because the structure variable can be created only after the structure has been declared...
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Students have asked these similar questions
Consider the following database for some store:
Customers (cid, cname, city, discount)Agents (aid, aname, city, percent)Products (pid, pname, city, quantity, price)Orders (ordno, mon, cid, aid, pid, qty, dollars)
The relation Customers records the ID (cid), name (cname), location (city) of each customer and a discount percentage (discount) for this customer.
The relation Agents records the ID (aid), name (aname), location (city) of each agent and a transaction fee (percent) charged by this agent.
The relation Products lists the ID (pid), name (pname), location (city), quantity and price of available products.
And finally, the relation Orders contains a unique order number (ordno), the month (mon), customer (cid), agent (aid), product (pid), quantity (qty) of each order as well as the total value (dollars) of the transaction.
1. Express the following query in SQL
(a) List customers (names) who do not have discounts but purchased at least one product of price greater than $50.
(b) Find…
Consider the following relational schema and briefly answer the questions that follow:
Emp(eid: integer, ename: string, age: integer, salary: real)
Works(eid: integer, did: integer, pct_time: integer)
Dept(did: integer, budget: real, managerid: integer)
a. Define a table constraint on Dept that will ensure that all managers have age > 30.
b. Write SQL statements to delete all information about employees whose salaries exceed that of the manager of one or more departments that they work in. Be sure to ensure that all the relevant integrity constraints are satisfied after your updates.
Consider the following relations:
Student(snum: integer, sname: string, rmajor: string,
level: string, age: integer)
Class(cname: string, meets_at: time, room: string, fid: integer)
Enrolled(snum: integer, cname: string)
Faculty(fid: integer, fname: string, deptid: integer)
The meaning of these relations is straightforward; for example, Enrolled has one record per student-class pair such that the student is enrolled in the class.
2. Express each of the following integrity constraints in SQL unless it is implied by the primary and foreign key constraint; if so, explain how it is implied. If the constraint cannot be expressed in SQL, say so. For each constraint, state what operations (inserts, deletes, and updates on specific relations) must be monitored to enforce the constraint.
(a) Every faculty member must teach at least two courses.
(b) Every student must be enrolled in the course called 'Math101'.
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Chapter 11 Solutions
Starting Out with C++ from Control Structures to Objects, Student Value Edition (9th Edition)
Ch. 11.4 - Prob. 11.1CPCh. 11.4 - Write a definition statement for a variable of the...Ch. 11.4 - Prob. 11.3CPCh. 11.6 - For Questions 11.4-11.7 below, assume the Product...Ch. 11.6 - Write a loop that will step through the entire...Ch. 11.6 - Prob. 11.6CPCh. 11.6 - Prob. 11.7CPCh. 11.6 - Write a structure declaration named Measurement,...Ch. 11.6 - Write a structure declaration named Destination,...Ch. 11.6 - Write statements that store the following data in...
Ch. 11.10 - Prob. 11.11CPCh. 11.10 - Write a function that uses a Rectangle structure...Ch. 11.10 - Prob. 11.13CPCh. 11.10 - Prob. 11.14CPCh. 11.10 - Prob. 11.15CPCh. 11.11 - Look at the following declaration: enum Flower {...Ch. 11.11 - What will the following code display? enum {...Ch. 11.11 - Prob. 11.18CPCh. 11.11 - What will the following code display? enum Letters...Ch. 11.11 - Prob. 11.20CPCh. 11.11 - Prob. 11.21CPCh. 11 - Prob. 1RQECh. 11 - Prob. 2RQECh. 11 - Prob. 3RQECh. 11 - Look at the following structure declaration:...Ch. 11 - Look at the following structure declaration:...Ch. 11 - Look at the following code: struct PartData {...Ch. 11 - Look at the following code: struct Town { string...Ch. 11 - Look at the following code: structure Rectangle {...Ch. 11 - Prob. 9RQECh. 11 - Look at the following declaration: enum Person {...Ch. 11 - Prob. 11RQECh. 11 - The ______ is the name of the structure type.Ch. 11 - The variables declared inside a structure...Ch. 11 - A(n) ________ is required after the closing brace...Ch. 11 - In the definition of a structure variable, the...Ch. 11 - Prob. 16RQECh. 11 - Prob. 17RQECh. 11 - Prob. 18RQECh. 11 - Prob. 19RQECh. 11 - Prob. 20RQECh. 11 - Declare a structure named TempScale, with the...Ch. 11 - Write statements that will store the following...Ch. 11 - Write a function called showReading. It should...Ch. 11 - Write a function called findReading. It should use...Ch. 11 - Write a function called getReading, which returns...Ch. 11 - Prob. 26RQECh. 11 - Prob. 27RQECh. 11 - Look at the following statement: enum Color { RED,...Ch. 11 - A per store sells dogs, cats, birds, and hamsters....Ch. 11 - T F A semicolon is required after the closing...Ch. 11 - T F A structure declaration does not define a...Ch. 11 - T F The contents of a structure variable can be...Ch. 11 - T F Structure variables may not be initialized.Ch. 11 - Prob. 34RQECh. 11 - Prob. 35RQECh. 11 - T F The following expression refers to element 5...Ch. 11 - T F An array of structures may be initialized.Ch. 11 - Prob. 38RQECh. 11 - T F A structure member variable may be passed to a...Ch. 11 - T F An entire structure may not be passed to a...Ch. 11 - T F A function may return a structure.Ch. 11 - T F when a function returns a structure, it is...Ch. 11 - T F The indirection operator has higher precedence...Ch. 11 - Prob. 44RQECh. 11 - Find the Errors Each of the following...Ch. 11 - Prob. 46RQECh. 11 - struct TwoVals { int a, b; }; int main () {...Ch. 11 - #include iostream using namespace std; struct...Ch. 11 - #include iostream #include string using namespace...Ch. 11 - struct FourVals { int a, b, c, d; }; int main () {...Ch. 11 - Prob. 51RQECh. 11 - struct ThreeVals { int a, b, c; }; int main () {...Ch. 11 - Prob. 1PCCh. 11 - Movie Profit Modify the program written for...Ch. 11 - Prob. 3PCCh. 11 - Weather Statistics Write a program that uses a...Ch. 11 - Weather Statistics Modification Modify the program...Ch. 11 - Soccer Scores Write a program that stores the...Ch. 11 - Customer Accounts Write a program that uses a...Ch. 11 - Search Function for Customer Accounts Program Add...Ch. 11 - Speakers Bureau Write a program that keeps track...Ch. 11 - Prob. 10PCCh. 11 - Prob. 11PCCh. 11 - Course Grade Write a program that uses a structure...Ch. 11 - Drink Machine Simulator Write a program that...Ch. 11 - Inventory Bins Write a program that simulates...
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Similar questions
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