i need identify the entities,atributes, relationships and any constrain WITHOUT PRIMIRY KEY DB for Railway Reservation  Purpose: The Database is for a railway reservation system which facilitates the passengers to enquire about the trains available on the basis of source and destination, booking and cancellation of tickets, enquire about the status of the booked ticket, etc. The database is for maintaining the records of different trains, train status, and passengers. The record of train includes its number, name, source, destination, and days on which it is available, whereas record of train status includes dates for which tickets can be booked, total number of seats available, and number of seats already booked. Passengers can book their tickets for the train in which seats are available. For this, passenger has to provide the desired train number and the date for which ticket is to be booked. Before booking a ticket for a passenger, the validity of train number and booking date is checked. Once the train number and booking date are validated, it is checked whether the seat is available. If yes, the ticket is booked with confirm status and corresponding ticket ID is generated which is stored along with other details of the passenger. After all the available tickets are booked, certain numbers of tickets arebooked with waiting status. If waiting lot is also finished, then tickets are not booked and a message of non availability of seats is displayed. The ticket once booked can be ‐ cancelled at any time. For this, the passenger has to provide the ticket ID (the unique key). The ticket ID is searched and the corresponding record is deleted. With this, the first ticket with waiting status also gets confirmed.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
icon
Related questions
Question

i need identify the entities,atributes, relationships and any constrain

WITHOUT PRIMIRY KEY

DB for Railway Reservation 

Purpose: The Database is for a railway reservation system which facilitates the
passengers to enquire about the trains available on the basis of source and destination,
booking and cancellation of tickets, enquire about the status of the booked ticket, etc.
The database is for maintaining the records of different trains, train status, and
passengers. The record of train includes its number, name, source, destination, and days
on which it is available, whereas record of train status includes dates for which tickets
can be booked, total number of seats available, and number of seats already booked.
Passengers can book their tickets for the train in which seats are available. For this,
passenger has to provide the desired train number and the date for which ticket is to be
booked. Before booking a ticket for a passenger, the validity of train number and
booking date is checked. Once the train number and booking date are validated, it is
checked whether the seat is available. If yes, the ticket is booked with confirm status
and corresponding ticket ID is generated which is stored along with other details of the
passenger. After all the available tickets are booked, certain numbers of tickets arebooked with waiting status. If waiting lot is also finished, then tickets are not booked
and a message of non availability of seats is displayed. The ticket once booked can be ‐
cancelled at any time. For this, the passenger has to provide the ticket ID (the unique
key). The ticket ID is searched and the corresponding record is deleted. With this, the
first ticket with waiting status also gets confirmed.

Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY