select user_id, ticket_id from zdy_ticket_user user_id = #{userId} and ticket_id = #{ticketId} select ticket_id from zdy_ticket_user where user_id = #{userId} insert into zdy_ticket_user user_id, ticket_id, #{userId}, #{ticketId}, delete from zdy_ticket_user where user_id = #{userId} and ticket_id in #{ticketId} delete from zdy_ticket_user where ticket_id = #{ticketId}