Hierarchical data representation model, Database Management System


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

Posted Date: 3/6/2013 5:10:32 AM | Location : United States

Related Discussions:- Hierarchical data representation model, Assignment Help, Ask Question on Hierarchical data representation model, Get Answer, Expert's Help, Hierarchical data representation model Discussions

Write discussion on Hierarchical data representation model
Your posts are moderated
Related Questions

Outer Join: The use of Outer Join is that it still joins those tuples that do not have matching values in common columns are also contained in the result table. Outer join places

Draw an entity relationship diagram (ERD) for the following situation: A company has a number of employees. Each employee is identified by an Employee_Id. The company wants to st

Define the Boyce-Codd Normal Form with instance and also Compare BCNF and 3NF.  Ans: BCNF: For each functional dependency X->Y in a set F of functional dependencies over relati

Explain the three data models namely relational, network and hierarchical and evaluate their relative advantages and disadvantages. Hierarchical Model: In hierarchical model, da

What is storage manager?  A  storage  manager  is  a  program  module  that  gives  the  interface  between the Low level data  kept in a database and the application programs

Explain Dynamic Two-Phase Locking Here a transaction locks a data item instantly earlier than any operation is applied on the data item.  After finishing all the operations on

Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pictori

We need help in Booking System for Golf Business Development of a web based booking system which permits clients to book golf lessons with the following features- a) 4 user p

Need 2 projects completed in 3NF format.