Database integrity and multiple users?

Does RAILS ensure that multiple users of a RAILS application won’t create a corrupt database

if each user is creating database entries with foreign keys linking multiple tables together?

Do you have to use explicit table locking ?

Thanks,

P.

Does RAILS ensure that multiple users of a RAILS application won't create a
corrupt database
if each user is creating database entries with foreign keys linking
multiple tables together?

Do you have to use explicit table locking ?

Rails doesn't do anything by default. You can use optimistic or
pessimistic locking of rows if you need to guard against concurrent
modifications to a single row. I've never needed table level locking
(which is an obvious scalability bottleneck)
I personally always use foreign key constraints to enforce integrity
of those references

Fred