Hierarchical data representation model, Database Management System

Assignment Help:

Examples:-

Hierarchical Model: It tells data as and relationships by hierarchy of data values. Figure illustrates an example of hierarchical model. Now a day's these models are not used in commercial DBMS products.

139_Hierarchical Data Representation Model.png

Figure: An example of Network Model

324_Hierarchical Data Representation Model1.png

Figure: An example of Hierarchical Model


Related Discussions:- Hierarchical data representation model

Management information system, management information system based on funct...

management information system based on functional organisation

NORRMALIZATION, Home based assignment Consider an ORDER table with the foll...

Home based assignment Consider an ORDER table with the following attributes: • Order Number (ONo),Customer Number (CNo),Customer Name (CNa),Item Number (INo),Unit Price (UP), Quant

File organisation and its types, File Organisation And Its Types  Just ...

File Organisation And Its Types  Just as arrays, trees, lists and other data structures are used to execute data Organisation in main memory, a number of planning's are used to

What is foreign key, What is foreign key? A relation schema r1 derived ...

What is foreign key? A relation schema r1 derived from an ER schema may contain among its attributes the primary key of another relation schema r2.this attribute is known as a

Define 3nf normal form, 3NF Normal Form A relation schema R is in 3NF ...

3NF Normal Form A relation schema R is in 3NF if it is in 2NF and for each FD X A either of the following is true X is a Super-key of R. A is a prime attribute of R

Explain how the associations are implemented as classes, Explain how the as...

Explain how the associations are implemented as classes. A general approach in this case is to transform an association class into a simple class linked to two original classes

How do you find the final model after iterative analysis, How do you find t...

How do you find the final model after iterative analysis? Why is iterative analysis of any of the problem needed? The final model serves as the base for system architectur

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