How to write to multiple databases in a single transaction?

I have a phisical file that contains several design databases. Now, I try to write in several databases in this type of file in a single transaction. I have made some efforts to achieve but failed. In the documentation of Berkeley, it is said "to ensure that all transactions are resolved (committed or aborted) before closing the database. ', I think that if I close the first database operation, putting the second database can be influenced and files will not correctly put in the second database. How do I do?

Please check this page of documentation: atomicity. You have also some good examples in:
DB-4.7.25\examples_c
DB-4.7.25\examples_cxx
DB-4.7.25\examples_java

If it's not helping you, please post a test program.

Thank you
Bogdan

Tags: Database

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