Illustrate package classes and associations into models, Database Management System

Assignment Help:

Package classes and associations into models 

Programs are made of separate physical units which could be edited, imported, complied or otherwise manipulated. The careful partitioning of an implementation into package is significant for group work on the program. Packaging has the following issues: 

a. Information hiding

b. Collection of entities

c. Constructing physical modules with strong coupling with each other module.

 


Related Discussions:- Illustrate package classes and associations into models

RDBMS, what is RDBMS? how it works? good example.

what is RDBMS? how it works? good example.

Explain the equijoin, Explain the θ-join and equijoin Refer tables Car ...

Explain the θ-join and equijoin Refer tables Car and Boat which list models of cars and boats and their relevant prices. Assume a customer wants to buy a car and a boat, but sh

Define cardinality and participation constraints, Define cardinality and pa...

Define cardinality and participation constraints on a relationship type, completeness constraint on generalization.        Ans: Cardinality defines the number of entities to wh

Explain the functions trim-length-count in oracle, Explain the following fu...

Explain the following functions of Oracle with suitable examples: (i) To_Char( ) (ii) Count( ) (iii) Trim( ) (iv) Length( ) Ans: (i) To_char( ): The TO_CHAR function conver

How many types of views are there, How many types of Views are there? ...

How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View

Unrepeatable reads-problems of concurrent transactions, Unrepeatable reads ...

Unrepeatable reads : Assume T7 reads X twice during its implementation. If it did not update X itself it could be very disturbing to see a dissimilar value of X in its next read. B

What is dml (data manipulation language)?, This language that enable user m...

This language that enable user manipulate to or access data as organized by appropriate data model. Low level or Procedural DML : DML needs a user to specify what data ar

Describe the nested-loop join and block-nested loop join, Describe the nest...

Describe the nested-loop join and block-nested loop join.   Ans:   The block nested- loop join algorithm is as described below:     for every block B r of relation R do beg

Illustrate the diagram - association as a cache, Association as a cache ...

Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient.    Figure:

What is nested trigger, What is Nested Trigger? A trigger can also havi...

What is Nested Trigger? A trigger can also having INSERT, UPDATE and DELETE logic within itself, so when the trigger is fired because of data modification it can also cause ano

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