<code>
/**
* Returns true if article is not buyable
*
* @return bool
*/
pu... e>
ALTER TABLE `oxorder` ADD `OXPAID_SUM` DOUBLE NOT NULL DEFAULT '0' COMMENT 'exact payment (not inserted by GUI))', ADD `OXREMARK_INTERN` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL COMMENT 'internal remark for payment'
</code