Equijoin, Database Management System

When every condition appears with equality condition (=) only. c)  

Natural join (denoted by R*S)

When two join attributes have the similar name in both relations. (That attribute is

Known as Join attribute), only one of the two attributes is retained in the join relation. The join condition in such a case is = for the join attribute. The condition is not given in the natural join.

Posted Date: 3/6/2013 5:53:47 AM | Location : United States







Related Discussions:- Equijoin, Assignment Help, Ask Question on Equijoin, Get Answer, Expert's Help, Equijoin Discussions

Write discussion on Equijoin
Your posts are moderated
Related Questions
#what is cursor its uses ? Explain it

Define Deadlock avoidance These protocols as well ensure that the system will never enter a deadlock state although the way it is done is different from deadlock prevention. I

Mention the type of constraints we can specify in the CREATE command of DDL. The type of constraints that can be specified are as follows:- PRIMARY KEY, NOT NULL, UNIQUE, FOR

Question: (a) What is ODBC and what is its function? (b) What is Web application server, and how does it work from a database perspective? (c) What does e-commerce mean

What are the benefits of decomposing a system? The benefits of decomposing a system into subsystems are that after decomposition, each individual component become smaller and e

OPENCART - Want Massive amount of products Imported through CSV We have a massive list of products that would take completely too long to do data entry. We require a slick progr

er diagtram for icici

Aggregate functions Some of these functions are min, count, max, and avg. These functions help in getting consolidated information from a set of tuples. Example:

The Database Approach In order to overcome the limits of a file system, a new approach was needed. Hence a database approach emerged. A database is a persistent collection of

Define the terms i) DDL ii) DML DDL: Data base schema is particular by a set of definitions expressed by a special language known as a data definition language. DML: A data