gadasin/requests.sql

--- Зарегистрировать нового пользователя
insert into clients (forename, surname, patronymic, age, phone_number, email)
values ('Обласов', 'Алексей', 'Сергеевич', 20, '89308136075', 'oblasovas53879@mail.ru');

--- Вывести доступные категории настольных игр
select name from sections;

--- Вывод названия игры и цена при условии что цена меньше 2000 руб (для незарегистрированного пользователя)
set lc_monetary to 'ru_RU.UTF-8';
select name, price
from board_games
where price::numeric < 2000;

--- Вывод самых дорогих игр с жанрами и издателями
set lc_monetary to 'ru_RU.UTF-8';
select
    board_games.name as name,
    genres.name as genre,
    publishers.name as publisher,
    board_games.price as price
from
    board_games
    join genres using(genre_id)
    join publishers using(publisher_id)
order by
    price desc
limit 10;

--- Вывод количества продаж за период
set lc_monetary to 'ru_RU.UTF-8';
select
    board_games.name as name,
    publishers.name as publisher,
    board_games.price as price,
    sum(orders_games.count) as sells
from
    board_games
    join publishers using(publisher_id)
    join orders_games using(board_game_id)
    join orders using(order_id)
where
    orders.order_date between '2024-12-16' and '2024-12-20'
group by
    board_games.name, publishers.name, board_games.price
order by
    publishers.name