Database, computer science, Basic Computer Science

Assignment Help:
Q1: ER modelling & logical design.
An information system is required for an online auction site, based on the following speci?cation:
Only registered users can use the site. Private users can either sell or bid, but commercial users are only allowed to sell via the site. Apart from user information, the database should also store information about items that are put up for sale. Customers can place a bid for an item or can cancel their bidding. They can also increase their previous offer. The database is meant to track all transactions and it is not intended to delete or modify previously entered data.
Develop an entity-relationship diagram annotated with multiplicities, and translate your design into SQL “CREATE TABLE” statements.

Related Discussions:- Database, computer science

Looping statement, Looping Statement:  The purpose of a loop structure is...

Looping Statement:  The purpose of a loop structure is to repeat certain tasks until some condition is satisfied. Several variations of a loop structure are available in each pro

Science, Ask question #Minimum 100 words accepted/

Ask question #Minimum 100 words accepted/

C programming, input is n positive numbers and reverse it, out put gv the a...

input is n positive numbers and reverse it, out put gv the absolute difference and give the reverse(magic number),using function reverseinteger, and function generate magicnumber

Liquid crystal displays, Liquid Crystal Displays (LCD): First introduc...

Liquid Crystal Displays (LCD): First introduced in watches and clocks in the1970's, LCDs are now used to display images in monitors. A newer technology in computer screens is

Project management, #Assignment 1: Project Management and Information Secur...

#Assignment 1: Project Management and Information Security Write a two to three (2-3) page paper that addresses the following: Explicate in detail the importance of project managem

Wide area networks and metropolitan area networks, Metropolitan Area Networ...

Metropolitan Area Networks : These type of networks generally cover specific metropolitan area and provide to them all the services.  Wide Area Networks (WANs): Wide Are

Adding macros to ms word 2010 for a particular format, Project Setting up ...

Project Setting up Microsoft Word 2010 to automatically handle as much as possible of the NDSU Graduate School requirements for a disquisition. Accessible from the Graduate Schoo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd