You need to enable logging for the the following categories:
org.hibernate.SQL
– set todebug
to log all SQL DML statements as they are executedorg.hibernate.type
– set totrace
to log all JDBC parameters
So a log4j configuration could look like:
# logs the SQL statements
log4j.logger.org.hibernate.SQL=debug
# Logs the JDBC parameters passed to a query
log4j.logger.org.hibernate.type=trace
The first is equivalent to hibernate.show_sql=true
legacy property, the second prints the bound parameters among other things.
Another solution (non hibernate based) would be to use a JDBC proxy driver like P6Spy.