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Thread: Erd

  1. #1
    Join Date
    Oct 2003
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    00

    x
    Last edited by sguy; 10-13-03 at 07:48.

  2. #2
    Join Date
    Apr 2002
    Location
    Toronto, Canada
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    sounds like homework

    what have you got so far?


    rudy
    http://r937.com/

  3. #3
    Join Date
    Apr 2002
    Location
    Toronto, Canada
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    that's pretty neat, and looks like it covers everything

    maybe you could help superman with his queries...


    rudy

  4. #4
    Join Date
    Apr 2002
    Location
    Toronto, Canada
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    the relationships look okay, but i dunno about the cardinalities

    for example, a supervisor can syupervise more than one contract, right?

  5. #5
    Join Date
    Apr 2002
    Location
    Toronto, Canada
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    so that would mean the 1..1 from supervisor rectangle to supervises diamond is wrong?

  6. #6
    Join Date
    Apr 2002
    Location
    Toronto, Canada
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    okay, yeah, i guess i'm quite rusty on reading those cardinalities
    rudy.ca | @rudydotca
    Buy my SitePoint book: Simply SQL

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