If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

 
Go Back  dBforums > General > Database Concepts & Design > What is a good scenario for a data model?

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 01-22-10, 05:45
JSkirt JSkirt is offline
Registered User
 
Join Date: Jan 2010
Posts: 5
What is a good scenario for a data model?

for my coursework i have been asked to draw up a database model.
specifically, it says we cannot use any of the models we have been using during classwork, these models were a school, customer/order, and a hospital.

The model must contain:

• At least one one-many relationship

• At least one decomposed many-many relationship-show the original many-many relationship (i don't know what this means, anyone shed some light?)

• At least one recursive relationship (Don't know what this means either)

• At least one one-one relationship

• An entity with subtyping that has relationships with other entities that involve the super-type and at least one subtype. (or this)

Could anyone suggest to me what would be a good scenario to use? And perhaps suggest some relationships this could have?

BTW: I'm not too good at my database module at uni, so somethign really complex might be a bit difficult for me to use, i need something which includes all those but isnt TOO complex.

Thanks!
Reply With Quote
  #2 (permalink)  
Old 01-22-10, 06:11
pootle flump pootle flump is offline
King of Understatement
 
Join Date: Feb 2004
Location: One Flump in One Place
Posts: 14,905
You should model something you know so you lose the abstract nature of it. Your CD, book or DVD collections. Recipes. One of your interests. With these you have real, physical world things you can refer to.
__________________
Testimonial:
Quote:
pootle flump
ur codings are working excelent.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On