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Web2py supports multiple database connections since Fall 2007. It also supports distributed transactions (for postgresql, mysql and firebird) Assuming you have two (or more) connections let's say: db1=DAL('postgres://...') db2=DAL('firebird://...') in your models or controllers, you can commit them both explicitly with from gluon.sql import SQLDB ... do your stuff ... SQLDB.distributed_transaction_commit(db1,db2) It will rollback and raise Exception on failure.
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