Isolation means that if a database engine allows concurrent access, but makes sure that transactions don't interfere with one another. Durability means that once a transaction has been committed ...

Database systems are the backbone of contemporary data-driven applications, underpinning industries ranging from finance to scientific research. As data volumes surge and complexity increases ...

Cassandra and some other non-relational systems allow for a sort of “lightweight” transaction system, which employs some of the algorithms used by Spanner—specifically the “Paxos” consistency model.