db->getQueryBuilder(); $qb->delete('properties') ->where($qb->expr()->eq( 'propertyname', $qb->createNamedParameter( '{http://owncloud.org/ns}calendar-enabled', IQueryBuilder::PARAM_STR, ), IQueryBuilder::PARAM_STR, )) ->andWhere($qb->expr()->eq( 'propertyvalue', $qb->createNamedParameter( '1', IQueryBuilder::PARAM_STR, ), IQueryBuilder::PARAM_STR, )) ->executeStatement(); } }