My system has a number of ManyToMany cross database joins. We do not seem to have any problems with them. We do not Collapse them. We maintain them manually.
Message: 1 Date: Sun, 07 Aug 2011 23:19:41 +0200 From: Lars Sonchocky-Helldorf <lars.sonchocky-helld...@hamburg.de<mailto:lars.sonchocky-helld...@hamburg.de>> Subject: Design question: are cross database ManyToMany relationships possible To: WebObjects Development <webobjects-dev@lists.apple.com<mailto:webobjects-dev@lists.apple.com>> Message-ID: <f37cb22c-694e-418e-9a0a-ed0799b91...@hamburg.de<mailto:f37cb22c-694e-418e-9a0a-ed0799b91...@hamburg.de>> Content-Type: text/plain; charset=us-ascii Dear List, I've got a design question: Is it possible to manage cross database ManyToMany relationships with EOF? Googling the topic brought up: http://lists.apple.com/archives/webobjects-dev/2003/Feb/msg00395.html which gives me the faint hope that such things are possible. But then again almost all of the other search results gave me the impression that this isn't possible. Hence my question to the pros: Are such constructs possible, if so what do I have to pay attention to (Of course I tried and failed before asking this question ;-))? What are the pitfalls? If this is not possible I'd like to know what kind of solutions you use in such situations: duplicate tables (which bear the risk of divergence)? thanks & cheers, Lars Jeffrey Simpson Senior Software Engineer IT Youth For Understanding USA Telephone: 240.235.2144 Toll Free: 800.424.3691 Fax: 240.235.2174 Website: www.yfu-usa.org<http://www.yfu-usa.org> [http://yfuusa.org/media/Disclaimer/image001.jpg]<http://www.yfu-usa.org> [http://yfuusa.org/media/Disclaimer/image002.jpg] <http://yfuusa.org/host-families/host-a-student.php> Youth For Understanding (YFU) prepares young people for their responsibilities and opportunities in a changing, interdependent world. Join YFU USA on Facebook, Twitter and YouTube [http://yfuusa.org/media/Disclaimer/facebook_32.png]<http://www.facebook.com/YFU.USA.Fan> [http://yfuusa.org/media/Disclaimer/twitter_32.png] <http://twitter.com/YFU_USA> [http://yfuusa.org/media/Disclaimer/youtube_32.png] <http://www.youtube.com/YFUUSA>
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