desirable properties of decomposition, Database Management System

Assignment Help:

Desirable Properties Of Decomposition

Decomposition is a process of dividing a relation into its projections that will not be disjoint. Please remind the Relational projection operator and keep in mind no duplicate tuples are allowed in a projection.

Desirable properties of decomposition are given below:

Lossless-join decomposition
Attribute preservation
Dependency preservation
Lack of redundancy

Related Discussions:- desirable properties of decomposition

Determine the Disadvantages of file based systems, Determine the Disadvanta...

Determine the Disadvantages of file based systems Some of the disadvantages of file based systems are like this: Data redundancy and inconsistency: the dissimilar applic

ERD, A student entity type has the following attributes,name..

A student entity type has the following attributes,name..

Describe application programming interface, Describe Application programmin...

Describe Application programming interface? Application Programming Interface - Commercial SQL implementations take one of the two primary techniques for involving SQL in a p

What is sql profiler, What is SQL Profiler? SQL Profiler is a graphical...

What is SQL Profiler? SQL Profiler is a graphical tool that permits system administrators to monitor events in an instance of Microsoft SQL Server. You can capture and save dat

Which method of access uses key transformation, Which method of access uses...

Which method of access uses key transformation? A Hash method of access uses key transformation.

Data, Explain three main attributes of data.

Explain three main attributes of data.

How to create a table from existing table, How to create a table from exist...

How to create a table from existing table? Create table as e.g, To create a new table ‘N_emp' with employee names and their identification numbers only from employee ta

What is an index, What is an index? An index is a structure that helps ...

What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.

Develop a web site to present decision tree structure, I am going to develo...

I am going to develop a web site to present decision tree structure. For this, I want a web application with AJAX technology to connect the database and prepare the decision tree's

Mixed fragmentation, Mixed fragmentation: Sometimes, horizontal fragmentati...

Mixed fragmentation: Sometimes, horizontal fragmentation or vertical fragmentation of a database schema by itself is insufficient to sufficiently distribute the data for some appli

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages