It could be one event with two database rows inserted, CQRS doesn’t have to map 1:1 to db entries. But in general, these kinds of systems are more complex than

It could be one event with two database rows inserted, CQRS doesn’t have to map 1:1 to db entries. But in general, these kinds of systems are more complex than 1 or 2 writes, so relying purely on transactions isn’t very common