gistfile1.php

$writer = new Zend_Log_Writer_Stream(DATA_PATH . 'zf_log.txt');
$db = Zend_Db::factory("pdo_sqlite", array('dbname'=>DATA_PATH.'zf_log.db'));
$columnMapping = array('pri' => 'priority', 'msg' => 'message'); 
$dbWriter = new Zend_Log_Writer_Db($db, 'log', $columnMapping);
$log = new Zend_Log();
$log->addWriter($writer);
$log->addWriter($dbWriter);
Zend_Registry::set('log', $log);