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
Problem 1. Explain the different categories of instructions. Explanation of 4 categories 2. Explain the steps to be followed for the addition of floating point numb

2000word how much

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

Resource sharing is a concept which has developed to contain many cooperative activities among libraries and other stakeholders. Interlibrary loan continues to be the basis of reso

Data Processing : Processing data is the most complex function of a computer system. It is where the computer itself (as opposed to a peripheral, e.g. a visual display unit or a p

write algorithm and draw flowchart to check whether the given number is palindrome or not

Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers [7] 2.2 In a given day he will sel

what is input and output device? explain meaning of input and output devices

Give a topology (network diagram) in which there is a link whose failure will change many routes. Give one in which there is a link whose failure will not change any routes

Manipulate the following Boolean expression in such a way so that it can be implemented using exclusive-OR and AND gates only. AB''CD'' + A ''BCD'' + AB''C''D + A''BC''D