#include <db.h> int DB_TXN->set_name(DB_TXN *txn, const char *name);
         The DB_TXN->set_name() method associates the specified string with
         the transaction.  The string is returned by 
         DB_ENV->txn_stat()  and displayed
         by DB_ENV->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 DB_TXN->set_name() method may be called at any time during the
         life of the application.
    
         The DB_TXN->set_name() 
            
                  method returns a non-zero error value on failure and 0 on success.