Index: branches/dev/data/class/SC_Query.php
===================================================================
--- branches/dev/data/class/SC_Query.php	(revision 13344)
+++ branches/dev/data/class/SC_Query.php	(revision 14591)
@@ -76,4 +76,19 @@
         }
         return false;
+    }
+    
+    /**
+     *  ¥ª¥×¥·¥ç¥ó¤Î½é´ü²½
+     *
+     *  @access public
+     *  @return void
+     */
+    function clear(){
+        $arrProperty = array_keys((get_object_vars($this)));
+        foreach ( $arrProperty as $property ) {
+            if ($property != 'conn') {
+                $this->$property = '';
+            }
+        }
     }