DELETE FROM `otowa`.`owa_request`;
DELETE FROM `otowa`.`owa_click`;
DELETE FROM `otowa`.`owa_impression`;
DELETE FROM `otowa`.`owa_document`;
DELETE FROM `otowa`.`owa_session`;
DELETE FROM `otowa`.`owa_visitor`;
DELETE FROM `otowa`.`owa_host`;
DELETE FROM `otowa`.`owa_ua`;