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  1. #1
    Join Date
    Jun 2006
    Posts
    1

    Question E-R Diagram sshowing Fatherhood, motherhood and spouse

    Hi,

    I am new to this forum.
    i want a help from anybody who knows E-R diagrams

    "E-R Diagram for a database showing fatherhood, motherhood and spouse relationshops among men and women"

    if asked many people abt this but no proper reply.

    if any one is ready to help me, please draw a this in a jpg or pdf file and send to avgupta123@rediffmail.com

  2. #2
    Join Date
    Apr 2002
    Location
    Toronto, Canada
    Posts
    20,002
    HOMEWORK!!

    you will have to show us what you have already done by yourself, and we might help you improve it
    rudy.ca | @rudydotca
    Buy my SitePoint book: Simply SQL

  3. #3
    Join Date
    Aug 2004
    Posts
    330
    You might start by defining what something is that you want to store information about, like a Person. Write the definitions out in plain language like you are trying to describe it to your grandmother. This will be the source of your Entities.

    Then think of the various ways the things you have defined and write out how they can be connected or related. Use the same descriptive language. These descriptions will be the source for your relationships.

    The E-R diagram is just a nice visual of your entities connected together by the relationships.

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