Use C# to create Order class as follows: a. Data members: oid, orderDate, promised Date, shipDate, deliveryDate, amount, status. b. Behavioral members: isOnTime() - check if the delvieryDate is ahead of promised Date, timeToDelivery() - get number of days from order to delivery, getLate Fees() - company pays 1% fee to the customer for every day of delay in delivery according to the contract.

Use C# to create Order class as follows: a. Data members: oid, orderDate, promised Date, shipDate, deliveryDate, amount, status. b. Behavioral members: isOnTime() - check if the delvieryDate is ahead of promised Date, timeToDelivery() - get number of days from order to delivery, getLate Fees() - company pays 1% fee to the customer for every day of delay in delivery according to the contract.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Given a Customer entity class with a CustomerId property for its primary key, which of the following defines a foreign key property if it’s coded in another entity class named Invoice? 1. public int CustomerId { get; set; } 2. public int InvoiceId { get; set; } 3. public Invoice Invoice { get; set; } 4. public Customer Customer { get; set; }
Write a function called ValidSupplier(SupplierID) that takes as its only input a SupplierID. If the supplier exists in the database your function should return True otherwise it should return False For example: Test Result print(ValidSupplier(13)) True
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Consider the following database instance. Table name: Students Primary key: sid Sid sname 7 Ricky 2 Ellen 6 MaryLou 4 Ellen Table name: Courses Primary key: cid cid cname 1 ICS 2 Finance Table name: Register Primary key: sid,cid Foreign key: sid references Students(sid) Foreign key: cid references Courses(cid) sid cid 7 2 2 2 7 1 4 1 5.1) For each of the following statements, show whether the statement is correctly executed or not (assume that the statements are executed in order, which means that if a statement is correctly executed, its effect is reflected in the following statement). If you say the statement is not executed, explain why. INSERT INTO Students VALUES (3, ‘Ellen’); INSERT INTO Students VALUES (6, ‘Ellen’); INSERT INTO Register VALUES (1, 2); INSERT INTO Courses VALUES (5, ‘Systems’); INSERT INTO Register VALUES (6, 5); INSERT INTO Register…
Consider the following database instance. Table name: Students Primary key: sid Sid sname 7 Ricky 2 Ellen 6 MaryLou 4 Ellen Table name: Courses Primary key: cid cid cname 1 ICS 2 Finance Table name: Register Primary key: sid,cid Foreign key: sid references Students(sid) Foreign key: cid references Courses(cid) sid cid 7 2 2 2 7 1 4 1 5.1) For each of the following statements, show whether the statement is correctly executed or not (assume that the statements are executed in order, which means that if a statement is correctly executed, its effect is reflected in the following statement). If you say the statement is not executed, explain why. INSERT INTO Students VALUES (3, ‘Ellen’); INSERT INTO Students VALUES (6, ‘Ellen’); INSERT INTO Register VALUES (1, 2); INSERT INTO Courses VALUES (5, ‘Systems’); INSERT INTO Register VALUES (6, 5); INSERT INTO Register…
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