#include <db_cxx.h> int DbTxn::set_name(const char *name);
         The DbTxn::set_name() method associates the specified string with
         the transaction.  The string is returned by 
         DbEnv::txn_stat()  and displayed
         by DbEnv::txn_stat_print().
    
If the database environment has been configured for logging and the Berkeley DB library was configured with --enable-diagnostic, a debugging log record is written including the transaction ID and the name.
         The DbTxn::set_name() method may be called at any time during the
         life of the application.
    
         The DbTxn::set_name() 
            
            
                method either returns a non-zero error value or throws an
                exception that encapsulates a non-zero error value on
                failure, and returns 0 on success.