We have implemented something similar. What you are asking for is called
optimistic locking and it is usually done using triggers. See e.g.
http://orafaq.com/papers/locking.pdf
Our implementation is on oracle 9i: It increases a check column on each
update by one. The following sql creates the
Hi!
If it isn't possible to use a transaction connection you can use a timestamp
column to verify if the row is changed in the database. Before saving the
instance you can read the timestamp column from the DB and compare it with the
timestamp that is set in your instance (this should be done
