1.15- Data Models In DBMS | Data Models And Their Characteristics in DBMS | DBMS- NET GATE

1.15- What Are Data Models In DBMS | Data Models And Their Characteristics in DBMS | DBMS- NET GATE


Please Follow Playlist For Complete Chapter - Link Is Under Description

PLAYLIST:
DBMS - Data Base Management System Tutorials In Hindi | GATE- NET- DBMS Lectures in Hindi
   • DBMS Complete Syllabus- All Universit...  

relational database schema
relational database model diagram
data operating model

gate dbms lectures,
ugc net dbms lectures,
gate dbms tutorials in hindi,
ugc net dbms tutorials in hindi,
gate dbms tutorials,
ugc net dbms tutorials,

gate Net Dbms Lectures In Hindi

University Exam Dbms Tutorials

A data model is a collection of concepts that can be used to describe the structure of the database including data types, relationships and the constraints that apply on the data.
A data model helps in understanding the meaning of the data and ensures that, we understand.
Introduction to Database Systems 19
– The data requirements of each user.
– The use of data across various applications.
– The nature of data independent of its physical representations.
A data model supports communication between the users and database designers. The major use of data model is to understand the meaning of the data and to facilitate communication about the user requirements.
Characteristics of Data Models A data model must posses the following characteristics so that the best possible data representation can be obtained.
(i) Diagrammatic representation of the data model.
(ii) Simplicity in designing i.e., Data and their relationships can be expressed and distinguished easily.
(iii) Application independent, so that different applications can share it.
(iv) Data representation must be without duplication.
(v) Bottom-up approach must be followed.
(vi) Consistency and structure validation must be maintained.

1.13- 2 Tier Architecture of DBMS | 2 Tier Client Server Architecture Of DBMS In Hindi | Gate DBMS    • 1.13-  2 Tier Architecture of DBMS | ...  
1.14- 3 Tier Architecture Of DBMS | 3 tier Client Server Architecture In DBMS | Gate Net DBMS Videos    • 1.14- 3 Tier Architecture Of DBMS | 3...   Notes Link:
http://www.tutorialsspace.com/Downloa...