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Hibernate version:

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:
undefined alias or unknown mapping: isnull [select isnull(max(u.Int_code),0)+1 FROM nHiber1.user1 u] when i was using isnull command to fetch the id number when it is no data in the database

Problems with Session and transaction handling?

Read this: http://hibernate.org/42.html

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