<insertid="insertConference"> insert into budgetmanagementsystem.conference(name, price, experts,people) values (#{name},#{price},#{experts},#{people})</insert><updateid="updateConference"> update budgetmanagementsystem.conference set name=#{name},price=#{price},experts=#{experts},people=#{people} where id=#{id};</update><deleteid="deleteConference"> delete from budgetmanagementsystem.conference where id =#{id}</delete>