一个小改动，数据库可能就优化很多

以存图片为例，我们可以这样写：

            insert into picture(path, p_type, p_id ,size) values (binary_path, 0,vehicleInfoID,280); 

            insert into picture(path, p_type, p_id ,size) values (plateNum_path, 1, vehicleInfoID, plateNum_size); 

            insert into picture(path, p_type, p_id ,size) values (CarJpeg_1_path, 2, vehicleInfoID, CarJpeg_1_size); 

            insert into picture(path, p_type, p_id ,size) values (CarJpeg_2_path, 3, vehicleInfoID, CarJpeg_2_size);

            insert into picture(path, p_type, p_id ,size) values (CarJpeg_3_path, 4, vehicleInfoID, CarJpeg_3_size); 

 也可以这样写：

            insert into picture(path, p_type, p_id ,size,sizeplate,sizepicture2,sizepicture3) values (CarJpeg_1_path, 2, vehicleInfoID,CarJpeg_1_size, plateNum_size,CarJpeg_2_size,CarJpeg_3_size); 

            前者至少针对每一条记录，多冗余了4条记录，不可取。 

 更改字段的属性可以这么写：

                alter table picture change  path  path varchar(150) default null;