what is data modelling and ER diagrams?
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Thread: what is data modelling and ER diagrams?

  1. #1
    Join Date
    Nov 2001
    Location
    Singapore
    Posts
    182
    Hi
    what is data modelling and ER diagram ?
    J Gangadhar

  2. #2
    Join Date
    Sep 2000
    Location
    Chennai, India
    Posts
    865
    Check this out...

    ER diagram ...

    http://www.samoore.com/teach/db/er/index.php


  3. #3
    Join Date
    Apr 2001
    Posts
    219
    More information here...

    http://www.dmreview.com
    ______________________
    Applications come and go,
    but the data remains!

  4. #4
    Join Date
    May 2002
    Location
    USA
    Posts
    462
    data Modelling adn Entitity Relation Diagrams are pictorial representaion of all the selected tables ( with their columns , some copnstarints , constraints , ) relationship with other tables and type of relation ship ata glance .

    Data Model Diagram is similar to this . it tells about the workflow of any user created application or procedure .

    this is used by designers while designing any application . there is a seperate tool to prepare server model diagram , ER Diagrams , Functional Hierarchy Diagrams , Data Model Diagram
    siva prakash
    DBA

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