#1
  1. No Profile Picture
    Registered User
    Devshed Newbie (0 - 499 posts)

    Join Date
    Dec 2013
    Posts
    2
    Rep Power
    0

    Need proof check for a ER diagram


    Hi, I am new to this website and I have an assignment due tomorrow about ERD. It's the basic, I have finished the diagram but I'm not very sure that everything is correct. So please kindly help me proof check my diagram. Thank you.

    Database description:
    You have to design a meetings database for the employees of a company. An employee can work for only one department at any given time. There can be meetings between a number of employees, and also department meetings. Meetings must be held in some room. Rooms are located in some building, and have a capacity and some equipment (computer, projector, white board, ...).

    My diagram:
    https: //app.box.com/s/d91ot2k0gtdd0ly4pnke


    Thank you in advance, please help me.
  2. #2
  3. Lord of the Dance
    Devshed Expert (3500 - 3999 posts)

    Join Date
    Oct 2003
    Posts
    3,598
    Rep Power
    1906
    Originally Posted by snowqueen93
    I cant post links, how can I show my diagram?
    Thank you in advance, please help me.
    Try to add a space before .com or similar
    e.g.: www.google .com
  4. #3
  5. No Profile Picture
    Registered User
    Devshed Newbie (0 - 499 posts)

    Join Date
    Dec 2013
    Posts
    2
    Rep Power
    0
    I edited my post with the link to my diagram please take a look at it for me. Thanks
  6. #4
  7. SQL Consultant
    Devshed Supreme Being (6500+ posts)

    Join Date
    Feb 2003
    Location
    Toronto Canada
    Posts
    27,127
    Rep Power
    4274
    why do some lozenges have a double border and others only one?

    why do some lines have arrowheads but others do not?

    why are there two curved lines between holds and meeting?

    but of far, far more importance, why does every entity seem to have an ID?
    rudy.ca | @rudydotca
    Buy my SitePoint book: Simply SQL

IMN logo majestic logo threadwatch logo seochat tools logo