update unimall_coupon set surplus = surplus - 1 where id = #{couponId} SELECT coupon_id AS `key`, count( coupon_id ) AS `value` FROM unimall_coupon_user WHERE coupon_id IN #{cid} AND user_id = #{userId} GROUP BY coupon_id; SELECT c.id AS id, c.title AS title, c.`type` AS `type`, c.is_vip AS isVip, c.description AS description, c.total AS total, c.surplus AS surplus, c.`limit` AS `limit`, c.discount AS discount, c.min AS min, c.status AS status, g.title as categoryTitle, c.category_id as categoryId, c.days AS days, c.gmt_start as gmtStart, c.gmt_end as gmtEnd FROM unimall_coupon c LEFT JOIN unimall_category g on c.category_id = g.id AND c.title like concat("%",#{title},"%") AND c.type = #{type} AND c.status = #{status} AND (unix_timestamp(c.gmt_end) > unix_timestamp(#{now}) or c.days is not null) AND unix_timestamp(c.gmt_end) < unix_timestamp(#{now}) ORDER BY c.id DESC SELECT c.id, c.title, c.type, c.description, c.total, c.surplus, c.`limit`, c.discount, c.`min`, c.`status`, c.is_vip AS isVip, c.category_id AS categoryId, c.days, c.gmt_start AS gmtStart, c.gmt_end AS gmtEnd, c.gmt_update AS gmtUpdate, c.gmt_create AS gmtCreate, y.title AS categoryTitle FROM unimall_coupon AS c LEFT JOIN unimall_category AS y ON y.id = c.category_id WHERE c.`status` = 1 AND (c.gmt_end IS NULL OR ( unix_timestamp(c.gmt_start) < unix_timestamp(now( )) AND unix_timestamp(c.gmt_end) > unix_timestamp(now( )) ))