Mendix Optimistic locking as data exclusion control

What kind of method does Mendix use for optimistic locking as data exclusion control? More context: Is optimistic locking should be done by preparing the items with the common update count in the Entity, but if you pass a parameter from the screen to Microflow, the parameter value will be updated with the latest value of the Entity. Unfortunately I cannot compare it with the number of updates  that have occured.
1 answers

This all depends on settings on your database. If you use Postgres (default) you can read about defaults for Postgres:

But I think that you are using MS SQL or Oracle with this question, you should set the defaults to your databaseserver. Mendix will use them and not override them.