5.6w+
社区成员
prepare stmt from 'select sum(cig_cnt) from cigstrinf where cig_type = ''红南京''';
prepare stmt from 'select sum(cig_cnt) from cigstrinf where cig_type = "红南京"';
prepare stmt from "select sum(cig_cnt) from cigstrinf where cig_type = '红南京'";