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Groups > comp.databases.ms-sqlserver > #1861
| From | Erland Sommarskog <esquel@sommarskog.se> |
|---|---|
| Newsgroups | comp.databases.ms-sqlserver |
| Subject | Re: About database design |
| Date | 2015-01-25 18:18 +0100 |
| Organization | Erland Sommarskog |
| Message-ID | <XnsA42DBA47632Yazorman@127.0.0.1> (permalink) |
| References | <ma2uli$jr1$1@dont-email.me> |
Tony Johansson (johansson.andersson@telia.com) writes: > I just wonder what relation do we have between Competition and a Rider. > We know that a competÃtion have many riders in horse jumping.. > > But can a rider paricipate in many horse jumping competition but not at > the same time. > So do we have a many to many or one to many in the connection between > Competition and Rider in horse jumping? > Yes, sounds like a CompetitionMembers table with CompetitionID and RiderID as the primary key. -- Erland Sommarskog, Stockholm, esquel@sommarskog.se
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About database design "Tony Johansson" <johansson.andersson@telia.com> - 2015-01-25 15:30 +0100
Re: About database design Erland Sommarskog <esquel@sommarskog.se> - 2015-01-25 18:18 +0100
Re: About database design --CELKO-- <jcelko212@earthlink.net> - 2015-01-26 07:34 -0800
Re: About database design rja.carnegie@gmail.com - 2015-01-26 08:33 -0800
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