Database, computer science, Basic Computer Science

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.
Posted Date: 2/23/2012 3:27:32 AM | Location : United States







Related Discussions:- Database, computer science, Assignment Help, Ask Question on Database, computer science, Get Answer, Expert's Help, Database, computer science Discussions

Write discussion on Database, computer science
Your posts are moderated
Related Questions
ELEMENTS OF PROGRAMMING LANGUAGE:  Learning a programming language requires understanding of concepts such as representation of different types of data in the computer, the va

Question 1 How do you insert Image source code in HTML Question 2 Explain actual process of FTP applications Question 3 Write a short note on TIFF BMP

The operating system is the layer among the hardware and the programs you run. It provides programs a standard interface to the hardware; or else every program would need to includ


Language of Digital Computers: Digital computers are electronic devices which operate on two valued logic (On and OFF). The ability of a transistor to act as a switch is the k


Artificial Intelligence research: Artificial Intelligence research may be describe  in terms of how the following question has been answered: "How are we going to get a comp

123 is not valid in which base value

Question 1 Explain the importance of graphics in multimedia. What are few of the tips to keep in mind while using graphics for the web? Question 2 Write a long note on co

Product of first n natural numbers - Algorithm Working Procedure : 1. Take n = 8 2. Take I = 1 3. Take PROD = 1 4. Compute PROD = PROD * 1 5. add 1 to 1 6. If I≤ n, complete