public function beginTransaction()
    {
        $this->_connect();
        $q = $this->_profiler->queryStart('begin', Zend_Db_Profiler::TRANSACTION);
        $this->_beginTransaction();
        $this->_profiler->queryEnd($q);
        return $this;
    }
public function beginTransaction()
    {
        $this->_connect();
        $q = $this->_profiler->queryStart('begin', Zend_Db_Profiler::TRANSACTION);
        $this->_beginTransaction();
        $this->_profiler->queryEnd($q);
        return $this;
    }
public function beginTransaction ( ) { $ this -> _connect ( ) ; $ q = $ this -> _profiler -> queryStart ( 'begin' , Zend_Db_Profiler :: TRANSACTION ) ; $ this -> _beginTransaction ( ) ; $ this -> _profiler -> queryEnd ( $ q ) ; return $ this ; }
Leave autocommit mode and begin a transaction.

@return Zend_Db_Adapter_Abstract
Leave autocommit mode and begin a transaction .