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Thread: what is data modelling and ER diagrams?

  1. 09-06-2002, 07:46 AM #1
    ganga
    ganga is offline Member
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    Hi
    what is data modelling and ER diagram ?
    J Gangadhar
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  2. 09-06-2002, 07:50 AM #2
    ggnanaraj
    ggnanaraj is offline Senior Advisor
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    Check this out...

    ER diagram ...

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

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  3. 09-06-2002, 08:25 AM #3
    Zaggy
    Zaggy is offline Member
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    More information here...

    http://www.dmreview.com
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    Applications come and go,
    but the data remains!
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  4. 09-06-2002, 08:46 AM #4
    prakashs43
    prakashs43 is offline Senior Member
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    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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