What is an entity relationship model, Database Management System

Assignment Help:

What is an entity relationship model? 

The  entity  relationship  model  is  a  collection  of  basic  objects  known as entities  and  relationship  between  those objects. An entity is a thing or object in the real world that is distinguishable from other objects

 


Related Discussions:- What is an entity relationship model

Need customer management program, Project Description: This is a Custome...

Project Description: This is a Customer Management project. Customer data is presented in a text file. The program can load this text data into its database columns. The data ma

Define data conversion, Define data conversion? Helpful to load data in...

Define data conversion? Helpful to load data into temporary staging tables. Then can write SQL code to do much of data processing. SQL code is simpler and faster to write than

Explain concurrency problems, Question: a) There are three concurrency...

Question: a) There are three concurrency problems, i.e. three types of potential mistake which could occur if concurrency control is not properly enforced in the database syst

Cascading, what is cascading? what is rollback cascading? please explain in...

what is cascading? what is rollback cascading? please explain in detail

What is message switching, What is Message switching Message switching ...

What is Message switching Message switching transmits data units which can be arbitrarily long. Packet switching has a utmost packet size, if any message longer than that, it s

In e-r diagram how generalization is represented, In E-R diagram how genera...

In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.

One to many - relationship cardinality, One-to-many : An entity in A is rel...

One-to-many : An entity in A is related with any number of entities in B. An entity in B is related with at the most one entity in A. Example: Relationship between faculty and d

Data Relation diagram, Can you assist me in Database management system? I n...

Can you assist me in Database management system? I need help in my courses, please email me at and get back me soon...

What is the function of io/m signal in the 8085, What is the function of IO...

What is the function of IO/M signal in the 8085? It is a status signal. It is used to differentiate among memory locations and I/O operations. When this signal is low (IO/M = 0

What are the properties of transaction, What are the properties of transact...

What are the properties of transaction? There are three properties of transactions :- A)     Atomicity B)      Consistency C)       Isolation

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