Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 5, Problem 9C
Explanation of Solution
Crow’s Foot ER diagrams for support the need of business:
The following data model shows the solution for the given question.
Explanation:
- In the above data model, the “Person” supertype entity contains “Per_No” as primary key. It contain optional “Author” entity and this entity contain “Per_No” is the primary and foreign key.
- The person has much expertise to work on the particular research and the “Expertise” has “Per_No” and “Int_code” are the primary and foreign keys.
- The “Interest” entity contains “Int_code” as primary key...
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• Solve the problem (pls refer to the inserted image)
Write .php file that saves car booking and displays feedback.
There are 2 buttons, which are <Book it> <Select a date>. <Select a date> button gets an input from the user, start date and an end date. Book it button can be pressed only if the start date and ending date are chosen by the user. If successful, it books cars for specific dates, with bookings saved.
Booking should be in the .json file which contains all the bookings, and have the following information:
Start Date.
End Date.
User Email.
Car ID.
If the car is already booked for the selected period, a failure message should be displayed, along with a button to return to the homepage. In the booking.json file, if the Car ID and start date and end date matches, it fails
Use AJAX: Save bookings and display feedback without page refresh, using a custom modal (not alert).
Write .php file with the html that saves car booking and displays feedback.
Booking should be in the .json file which contains all the bookings, and have the following information:
Start Date.
End Date.
User Email.
Car ID.
There are 2 buttons, which are <Book it> <Select a date>
Book it button can be pressed only if the start date and ending date are chosen by the user. If successful, book cars for specific dates, with bookings saved.
If the car is already booked for the selected period, a failure message should be displayed, along with a button to return to the homepage.
Use AJAX: Save bookings and display feedback without page refresh, using a custom modal (not alert).
And then add an additional feature that only free dates are selectable (e.g., calendar view).
Chapter 5 Solutions
Database Systems: Design, Implementation, & Management
Ch. 5 - Prob. 1RQCh. 5 - What kinds of data would you store in an entity...Ch. 5 - Prob. 3RQCh. 5 - What is a subtype discriminator? Give an example...Ch. 5 - Prob. 5RQCh. 5 - What is a disjoint subtype? Give an example.Ch. 5 - What is the difference between partial...Ch. 5 - Prob. 8RQCh. 5 - According to the data model, is it required that...Ch. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - When implementing a 1:1 relationship, where should...Ch. 5 - What is time-variant data, and how would you deal...Ch. 5 - Prob. 17RQCh. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8CCh. 5 - Prob. 9CCh. 5 - Prob. 10C
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