What is e-r model, Database Management System

Assignment Help:

What is E-R model?

This data model is based on real world that having of basic objects called entities and of relationship between these objects. Entities are explained in a database by a set of attributes.

 


Related Discussions:- What is e-r model

Database Models, Benefits and Limitations od Data Models?

Benefits and Limitations od Data Models?

Identify the candidate keys, Consider the following six relation schemes an...

Consider the following six relation schemes and their corresponding sets of functional dependencies. In each case identify a. All the candidate keys b. The highest normal for

Software failures-database recovery and security, Software failures :  In s...

Software failures :  In such cases, a software error abruptly stops the implementation of the current transaction (or all transactions), therefore leading to losing the state of pr

Database for online assignment system, i want to database for online assign...

i want to database for online assignment submission system

How can you connect to the mysql server, How can you connect to the MySQL S...

How can you connect to the MySQL Server? In order to connect to the MySQL server it is necessary to give the username and password so this be able to done with The following

Describe the host language, Describe the host language? Host Language:...

Describe the host language? Host Language: You could write applications along with SQL statements embedded inside a host language. The SQL statements give the database inter

Illustrate different types of locks in sql server, Illustrate different typ...

Illustrate different types of Locks in SQL Server. There are three kinds of locks in SQL Server i.) Shared locks - These are used for operations which don't allow any update

Column constraints-on delete cascade, CREATE TABLE prodtrans ( pno ...

CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);

Describe in brief about the sequence diagrams, Describe in brief about the ...

Describe in brief about the Sequence Diagrams Sequence diagrams are interaction diagrams which emphasize time ordering of messages. In UML, it is shown as a table which shows

Information infrasture, what benefit can a company gain by managing its own...

what benefit can a company gain by managing its own infrasture and services

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