Showing posts with label DBMS. Show all posts
Showing posts with label DBMS. Show all posts

Thursday, 18 October 2012

ALL DBMS PPTS

http://www.cse.iitb.ac.in/~sudarsha/db-book/slide-dir/index.html

Thursday, 6 September 2012

Wednesday, 1 August 2012

ER Model to Relational Model Maping

Lecture Series on Database Management System by Dr.S.Srinath, IIIT Bangalore. For more details on NPTEL visit http://nptel.iitm.ac.in

Data Modelling - ER Diagrams, Mapping


Lecture Series on Software Engineering by Prof.N.L. Sarda, Prof. Umesh Bellur,Prof.R.K.Joshi and Prof.Shashi Kelkar, Department of Computer Science & Engineering ,IIT Bombay . For more details on NPTEL visit http://nptel.iitm.ac.in

Introduction of DBMS

Lecture Series on Database Management System by Prof.D.Janakiram, Department of Computer Science & Engineering ,IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in

Monday, 30 July 2012

ER Model vs. Relational Model


• Both are used to model data
• ER model has many concepts
– entities, relations, attributes, etc.
– well-suited for capturing the app. requirements
– not well-suited for computer implementation
– (does not even have operations on its structures)
• Relational model
– has just a single concept: relation
– world is represented with a collection of tables
– well-suited for defining manipulations on data