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database.sql
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database.sql
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create schema fuelprices CHARACTER SET utf8 COLLATE utf8_general_ci;
create table dd
(
id varchar(255) not null,
dd_descr varchar(255) null,
dimos_descr varchar(255) null,
nomos_descr varchar(255) null,
constraint table_name_pk
primary key (id)
);
create table stations
(
id int not null,
name varchar(255) null,
address varchar(255) null,
zipcode int null,
dd_code varchar(255) not null,
constraint stations_pk
primary key (id)
);
create table products
(
id int not null,
description varchar(255) null,
company_id int not null,
constraint products_pk
primary key (id)
);
create table station_product_map
(
station_id int not null,
product_id int not null,
price double null,
last_edit timestamp null
);
create table companies
(
id int not null,
name varchar(255) null,
constraint company_pk
primary key (id)
);
alter table stations
add constraint stations_dd_fk
foreign key (dd_code) references dd (id);
alter table station_product_map
add constraint station_product_map_station_fk
foreign key (station_id) references stations (id);
alter table station_product_map
add constraint station_product_map_products_fk
foreign key (product_id) references products (id);
alter table station_product_map
add constraint station_product_map_pk
unique (station_id, product_id);
alter table products
add constraint products_companies_fk
foreign key (company_id) references companies (id);