# Join across Multiple DBs

**URL:** <https://discuss.rubyonrails.org/t/join-across-multiple-dbs/17077>\
**Category:** rubyonrails-talk\
**Created:** [August 16, 2007, 2:58pm UTC](https://discuss.rubyonrails.org/t/join-across-multiple-dbs/17077 "2007-08-16T14:58:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Paul\_Hoehne](https://avatars.discourse-cdn.com/v4/letter/p/a183cd/32.png) [@Paul\_Hoehne](https://discuss.rubyonrails.org/u/Paul_Hoehne)\
**Post date:** [August 16, 2007, 2:58pm UTC](https://discuss.rubyonrails.org/t/join-across-multiple-dbs/17077/1 "2007-08-16T14:58:14Z")

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IMHO I don't think you can unless the database supports linking  
tables across databases in a manner that's transparent to the client  
(i.e. Oracle).