Нормализација и подобрување на дизајн

Определување функционални зависности

R = {user_id, user_name, user_surname, user_pass, user_salt, user_email, user_mobile, user_active, user_image, clazz_, user_role, city_id, city_name, region_id, region_name, cust_EDB, cust_company_name, cust_adr, cust_representative_img, wh_id, wh_adr, veh_id, veh_carry_weight, veh_service_interval, veh_kilometers, veh_last_service, veh_last_service_km, veh_plate, veh_vin,veh_reg_date, ctg_id, ctg_name, man_id, man_name, man_adr, man_mobile, man_email, art_id, art_name, art_image, art_weight, price_id, price, price_eff_date, pf_id, pf_deadline, pf_date_created, pf_status_id, pf_status_name, pf_status_desc, del_id, del_date_created, del_date, del_start_km, del_end_km, del_start_time, del_end_time, d_status_id, d_status_name, d_status_desc, ord_id, ord_date, ord_sum, ord_fulfillment_date, ord_comment, o_status_id, o_status_name, o_status_desc, unit_id, unit_expiration_date, unit_serial_number, unit_batch_number, unit_manufacture_date, unit_cost_price, day_id, day_name, cust_day_id, start_time, end_time, t_id, t_value, t_date, t_type, t_expiry, t_validated_at, t_user, img_id, img_path, img_ent_type, img_ent_id}

Функционални зависности

Users and related entities

user_id → user_name, user_surname, user_pass, user_salt, user_email, user_mobile, user_active, user_image, clazz_, user_role, city_id

Customer extends User

user_id → cust_EDB, cust_company_name, cust_adr, cust_representative_img (where clazz_ = 'customer')

Manager extends User

user_id → wh_id (where clazz_ = 'manager')

Driver extends User

user_id → veh_id (where clazz_ = 'driver')

Location data

city_id → city_name, region_id

region_id → region_name

Warehouse

wh_id → wh_adr, city_id

Vehicle

veh_id → veh_carry_weight, veh_service_interval, veh_kilometers, veh_last_service, veh_last_service_km, veh_plate, veh_vin, veh_reg_date, wh_id

Categories

ctg_id → ctg_name

Manufacturer

man_id → man_name, man_adr, man_mobile, man_email

Article

art_id → art_name, art_image, art_weight, ctg_id, man_id

Price

price_id → price, price_eff_date, art_id

Pro forma

pf_id → pf_deadline, pf_date_created, pf_status_id

pf_status_id → pf_status_name, pf_status_desc

Delivery

del_id → del_date_created, del_date, del_start_km, del_end_km, del_start_time, del_end_time, d_status_id, veh_id

d_status_id → d_status_name, d_status_desc

Order

ord_id → ord_date, ord_sum, ord_fulfillment_date, ord_comment, o_status_id, cust_id, del_id, pf_id

o_status_id → o_status_name, o_status_desc

Article unit

unit_id → unit_expiration_date, unit_serial_number, unit_batch_number, unit_manufacture_date, unit_cost_price, wh_id, ord_id

Weekday

day_id → day_name

Customer weekday

cust_day_id → cust_id, day_id, start_time, end_time

Token

t_id → t_value, t_date, t_type, t_expiry, t_validated_at, t_user

Image store

img_id → img_path, img_ent_type, img_ent_id

Класификација на атрибути

Лево - атрибути кои одредуваат други

cust_day_id, price_id, pf_id, del_id, ord_id, unit_id, t_id, img_id

Лево и десно - атрибути кои одредуваат други и се одредени од други

user_id, city_id, region_id, wh_id, veh_id, ctg_id, man_id, art_id, d_status_id, o_status_id, pf_status_id, day_id

Десно - атрибути кои се одредени од други

user_name, user_surname, user_pass, user_salt, user_email, user_mobile, user_active, user_image, clazz_, user_role, city_name, region_name, cust_EDB, cust_company_name, cust_adr, cust_representative_img, wh_adr, veh_carry_weight, veh_service_interval, veh_kilometers, veh_last_service, veh_last_service_km, veh_plate, veh_vin, veh_reg_date, ctg_name, man_name, man_adr, man_mobile, man_email, art_name, art_image, art_weight, price, price_eff_date, pf_deadline, pf_date_created, pf_status_name, pf_status_desc, del_date_created, del_date, del_start_km, del_end_km, del_start_time, del_end_time, d_status_name, d_status_desc, ord_date, ord_sum, ord_fulfillment_date, ord_comment, o_status_name, o_status_desc, unit_expiration_date, unit_serial_number, unit_batch_number, unit_manufacture_date, unit_cost_price, day_name, start_time, end_time, t_value, t_date, t_type, t_expiry, t_validated_at, t_user, img_path, img_ent_type, img_ent_id

Покривачи на примарните клучеви

Vehicle

veh_id+ = {veh_id, veh_carry_weight, veh_service_interval, veh_kilometers, veh_last_service, veh_last_service_km, veh_plate, veh_vin, veh_reg_date, wh_id, wh_adr, city_id, city_name, region_id, region_name}

User

user_id+ = {user_id, user_name, user_surname, user_pass, user_salt, user_email, user_mobile, user_active, user_image, clazz_, user_role, city_id, city_name, region_id, region_name}

• Ако тип на корисник е 'customer':

*user_id+ += {cust_EDB, cust_company_name, cust_adr, cust_representative_img}

• Ако тип на корисник е 'manager':

user_id+ += {wh_id, wh_adr}

• Ако тип на корисник е 'driver':

user_id+ += {veh_id, veh_carry_weight, veh_service_interval, veh_kilometers, veh_last_service, veh_last_service_km, veh_plate, veh_vin, veh_reg_date, wh_id, wh_adr}

Manufacturer

man_id+ = {man_id, man_name, man_adr, man_mobile, man_email}

Article

art_id+ = {art_id, art_name, art_image, art_weight, ctg_id, ctg_name, man_id, man_name, man_adr, man_mobile, man_email}

Price

price_id+ = {price_id, price, price_eff_date, art_id, art_name, art_image, art_weight, ctg_id, ctg_name, man_id, man_name, man_adr, man_mobile, man_email}

Pro-forma

pf_id+ = {pf_id, pf_deadline, pf_date_created, pf_status_id, pf_status_name, pf_status_desc}

Delivery

del_id+ = {del_id, del_date_created, del_date, del_start_km, del_end_km, del_start_time, del_end_time, d_status_id, d_status_name, d_status_desc, veh_id, veh_carry_weight, veh_service_interval, veh_kilometers, veh_last_service, veh_last_service_km, veh_plate, veh_vin, veh_reg_date, wh_id, wh_adr, city_id, city_name, region_id, region_name}

Order

ord_id+ = {ord_id, ord_date, ord_sum, ord_fulfillment_date, ord_comment, o_status_id, o_status_name, o_status_desc, cust_id, del_id, pf_id, user_name, user_surname, user_pass, user_salt, user_email, user_mobile, user_active, user_image, clazz_, user_role, city_id, cust_EDB, cust_company_name, cust_adr, cust_representative_img, city_name, region_id, region_name, del_date_created, del_date, del_start_km, del_end_km, del_start_time, del_end_time, d_status_id, veh_id, d_status_name, d_status_desc, veh_carry_weight, veh_service_interval, veh_kilometers, veh_last_service, veh_last_service_km, veh_plate, veh_vin, veh_reg_date, wh_id, wh_adr,pf_deadline, pf_date_created, pf_status_id, pf_status_name, pf_status_desc}

Article Unit

unit_id+ = {unit_id, unit_expiration_date, unit_serial_number, unit_batch_number, unit_manufacture_date, unit_cost_price, wh_id, wh_adr, city_id, city_name, region_id, region_name, ord_id}

• Ако ord_id не е null, исто така ги вклучува и:

unit_id+ += {ord_date, ord_sum, ord_fulfillment_date, ord_comment, o_status_id, o_status_name, o_status_desc, cust_id, del_id, pf_id,

и сите атрибути одредени од ord_id

}

Композитен клуч - Article Unit и Price

(unit_id, price_id)+ = {unit_id, price_id,

Сите атрибути определни од unit_id

unit_expiration_date, unit_serial_number, unit_batch_number, unit_manufacture_date, unit_cost_price, wh_id, ord_id,

Сите атрибути определни од price_id

price, price_eff_date, art_id,

Сите транзитивни атрибути

wh_adr, city_id, city_name, region_id, region_name, art_name, art_image, art_weight, ctg_id, man_id, ctg_name, man_name, man_adr, man_mobile, man_email}

Weekday

cust_day_id+ = {cust_day_id, cust_id, day_id, start_time, end_time,

Од day_id:

day_name,

Од cust_id:

user_name, user_surname, user_pass, user_salt, user_email, user_mobile, user_active, user_image, clazz_, user_role, city_id, cust_EDB, cust_company_name, cust_adr, cust_representative_img,

Од city_id:

city_name, region_id, region_name}

Token

t_id+ = {t_id, t_value, t_date, t_type, t_expiry, t_validated_at, t_user,

Од t_user (кое е user_id):

user_name, user_surname, user_pass, user_salt, user_email, user_mobile, user_active, user_image, clazz_, user_role, city_id,

Од city_id:

city_name, region_id, region_name}

Image Store

img_id+ = {img_id, img_path, img_ent_type, img_ent_id}

Анализа според покривачи

Од анализирање на покривачите може да ги забележиме следните проблеми во нормализацијата на базата:

• Транзитивни зависности во податоците за возила: veh_id → veh_last_service, veh_last_service_km
• Недостига зависноста (ord_id, art_id) → quantity, price
• Историја на цени и вредност - unit_id → unit_cost_price
• Поврзување на слики: img_id → img_ent_type, img_ent_id