select c.id,c.name,c.ID_Number,c.vip_id,v.id,v.level from client c left join vip v on c.vip_id = v.id; select c.id,c.name,c.ID_Number,c.vip_id,v.id,v.level from client c left join vip v on c.vip_id = v.id where c.id = #{id}; insert into client values(null,#{name},#{ID_Number},#{vip_id}); delete from client where id = #{id}; update client name = #{name}, ID_Number = #{ID_Number}, vip_id = #{vip_id}, where id = #{id};