Hello everyone, I am now working on a big Hibernate program and is now stuck in the problem for a long time:
When I try to do
session.save(object);
then
transaction.commit();
, an exception is thrown just as the subject describes,
Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1

It's quite strange because the corresponding tables of my database is toatlly empty and all the primany keys( index) of those tables are generated automatically.

Can anyone give me a clue about the solution? Thanks!!!!!