Forest Posted November 11, 2015 Share Posted November 11, 2015 (edited) I question whether using JPA, you can ask a single SQL statement to the combined relationship of two tables from different manufacturers, for instance MySQL and MS SQL or Oracle ? Is there any way to do this using Java ? Edited November 11, 2015 by Forest Link to comment Share on other sites More sharing options...
justsomeguy Posted November 12, 2015 Share Posted November 12, 2015 I would guess there is not a way to do that, but that's just a guess. Database connections are individual connections to individual servers, I don't think there's a way in any language to send a single SQL statement that will work across multiple database connections. Link to comment Share on other sites More sharing options...
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