Define one-way associations using pointers, Database Management System

Assignment Help:

One-way Associations

If an association is only traversed in single direction, then it is known as one-way association. It is implemented as a pointer or an attribute which contains the object reference. If the multiplicity is "one", as in Figure, then it is a easy pointer; otherwise, if the multiplicity is "many", then it is a group of pointers. If "many" end is ordered, then a list may be used, instead of a set. A qualified association with multiplicity "one" could be implemented as a dictionary object.

 

1522_Implementation of two-way association using pointers.png

Implementation of two-way association using pointers


Related Discussions:- Define one-way associations using pointers

Describe the strategies adopted by the ministry of ict, Question 1: (a)...

Question 1: (a) Planning and management of ICT projects have a very poor record in developing countries. Briefly explain five critical success factors for correct implementa

Explain how you can define an object model of a system, Explain how you can...

Explain how you can define an object model of a system. A list of terms that shall be used by end users to describe state and behaviour of objects in system.   Different use

Using relational algebra which query finds customers, Using Relational Alge...

Using Relational Algebra which query finds customers, who have a balance of over 1000 ? Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find cu

What are the various states of transaction process, What are the various st...

What are the various states through which a transaction passes through in its lifetime?  Briefly discuss all the events that causes transition from one state to another.   Ans:

Define the basic operations of the relational algebra, Define the basic ope...

Define the basic operations of the relational algebra?     Ans: Basic operators of relational algebra are: 1. Union (∪) - Selects tuples which are in either P or Q or in bot

Relational algebra, Relational Algebra is a set of basic operations used to...

Relational Algebra is a set of basic operations used to influence the data in relational model. These operations allow the user to specify basic retrieval request. The result of re

What is object oriented model, What is Object Oriented model? This mod...

What is Object Oriented model? This model is based on collection of objects. An object has values stored in instance variables with in the object. An object also having bodies

What is odbc, What is ODBC ? ODBC - Open DataBase Connectivity which i...

What is ODBC ? ODBC - Open DataBase Connectivity which is also denoted by ODBC enable the integration of SQL along with a common-purpose programming language. ODBC expose data

Concurrency executions, Explain TPS concurreny executions stating their adv...

Explain TPS concurreny executions stating their advantages in online business advancement

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