What is the best default transaction isolation level for an ERP, if any?

Question

Short background: We are just starting to migrate/reimplement an ERP system to Java with Hibernate, targeting a concurrent user count of 50-100 users using the system. We use MS

Answer 1

Don't forget about SNAPSHOT, which is right below SERIALIZABLE.

It depends on how important it is for the data to be accurate in the reports. It really is a task-by-task thing.