A transaction maintains the consistency of the state of the data. In other words, after a transaction is run, all data in the database is “correct.” Isolation means that transactions can run at the ...

Database transactions should exhibit all four ACID properties: atomicity, consistency, isolation, and durability. Atomicity is guaranteed by transaction commits and rollbacks, as described above.

The introduction of transactions in MongoDB 4.0 represents possibly the most significant change in MongoDB's architecture since its original release. The lack of a transactional capability previously ...