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Hibernate version:3.0

[b]Mapping documents:

Code between sessionFactory.openSession() and session.close():

Full stack trace of any exception that occurs:

Name and version of the database you are using:

The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:

I have two tables, Table1 have Primary key field and Table2 have foreign key relation with Table1.
I want to insert NULL into Table2's foreign key field. How can I ?
Problems with Session and transaction handling?

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