SELECT * FROM music_group_purchase_list WHERE id_ = #{id} SELECT * FROM music_group_purchase_list ORDER BY id_ INSERT INTO music_group_purchase_list (id_,music_group_id_,goods_id_,purchase_num_,create_time_,update_time_) VALUES(#{id},#{musicGroupId},#{goodsId},#{purchaseNum},#{createTime},#{updateTime}) UPDATE music_group_purchase_list purchase_num_ = #{purchaseNum}, id_ = #{id}, update_time_ = #{updateTime}, music_group_id_ = #{musicGroupId}, goods_id_ = #{goodsId}, create_time_ = #{createTime}, WHERE id_ = #{id} DELETE FROM music_group_purchase_list WHERE id_ = #{id} SELECT * FROM music_group_purchase_list ORDER BY id_ SELECT COUNT(*) FROM music_group_purchase_list