diff --git a/www/protected/config/mode_development.php b/www/protected/config/mode_development.php
index ac55eda..1ae4f22 100644
--- a/www/protected/config/mode_development.php
+++ b/www/protected/config/mode_development.php
@@ -88,6 +88,12 @@ $configSpecific = array(
         'log' => array(
             'class' => 'CLogRouter',
             'routes' => array(
+                array(
+                    'class' => 'CFileLogRoute',
+                    'levels' => 'trace, info, error, warning',
+                    'categories' => 'system.db.*',
+                    'logFile' => 'sql.log',
+                ),
                 // Save log messages on file
                 array(
                     'class' => 'CFileLogRoute',