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Where Can I find info on ER diagrams?

Bala Raj
Ranch Hand

Joined: Sep 12, 2000
Posts: 75
Hi All,
I have been asked to collect some information on ERL (Entity Relationship Link - I think) for a project proposal.
I heard about ERD (Entity Relationship Diagrams) but not on ERL. Can some one help me on this?
Any help is appreciated.
Thanks,
Bala.
Ritu Kama
Ranch Hand

Joined: Sep 10, 2001
Posts: 72
Hi,
I have not heard of any term ERL in reference to ER diagrams.
I looked up the net on ERL -and only thing that makes sense is ERL stands for Electronic Reference Library. Does that make sense with respect to your project?
Thanks
Ritu
ruilin yang
Ranch Hand

Joined: Feb 25, 2001
Posts: 334
You can find E-R modelling on database conceptual design. You can find it in database book.
Bala Raj
Ranch Hand

Joined: Sep 12, 2000
Posts: 75
Hi,
My client has mentioned ERL in his project requirement. I am sure, it's not Electronic Reference Library.
I also requested my client to explain. Mean time, If any one come across about ERL, please let me know.
Thanks,
Bala.
Paul Newton
Ranch Hand

Joined: Jul 17, 2001
Posts: 67
Note also that UML class diagrams are not ER diagrams. UML borrows a lot of notation from the data-modelling domain, but they are not equivalent.
regards,
paul.
 
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