Initial commit

2026-07-12 14:34:52 +04:00
commit 3abf6bd9c2
557 changed files with 68706 additions and 0 deletions
@@ -0,0 +1,32 @@
+-- create indexes
+
+-- genres 
+CREATE INDEX idx_genres_genre_name ON genres (genre_name);
+
+-- movies
+CREATE INDEX idx_movies_title ON movies (title);
+CREATE INDEX idx_movies_genre_id ON movies (genre_id);
+
+-- halls
+CREATE INDEX idx_halls_hall_name ON halls (hall_name);
+
+-- sessions
+CREATE INDEX idx_sessions_movie_id ON sessions (movie_id);
+CREATE INDEX idx_sessions_hall_id ON sessions (hall_id);
+CREATE INDEX idx_sessions_begin_at ON sessions (begin_at);
+CREATE INDEX idx_sessions_hall_id_begin_at ON sessions (hall_id, begin_at);
+
+-- tickets
+CREATE INDEX idx_tickets_session_id ON tickets (session_id);
+CREATE INDEX idx_tickets_seat_number ON tickets (seat_number);
+
+-- refunds
+CREATE INDEX idx_refunds_ticket_id ON refunds (ticket_id);
+
+-- roles
+CREATE INDEX idx_roles_role_name ON roles (role_name);
+CREATE INDEX idx_roles_access_level ON roles (access_level);
+
+-- users
+CREATE INDEX idx_users_username ON users (username);
+CREATE INDEX idx_users_role_id ON users (role_id);
@@ -0,0 +1,83 @@
+-- Create table "Genres" to store movie genres
+
+CREATE TABLE genres (
+    genre_id INTEGER PRIMARY KEY AUTOINCREMENT,
+    genre_name TEXT NOT NULL UNIQUE CHECK(length(genre_name) > 0), -- Genre name cannot be empty
+    CONSTRAINT no_double_spaces_in_genre_name CHECK (genre_name NOT LIKE '%  %') -- Genre name cannot contain double spaces
+);
+
+-- Create table "Movies" to store movie details
+
+CREATE TABLE movies (
+    movie_id INTEGER PRIMARY KEY AUTOINCREMENT,
+    title TEXT NOT NULL UNIQUE CHECK(length(title) > 0), -- Movie title cannot be empty
+    genre_id INTEGER,
+    duration INTEGER CHECK(duration > 0), -- Movie duration must be greater than 0
+    FOREIGN KEY (genre_id) REFERENCES genres (genre_id) ON DELETE CASCADE,
+    CONSTRAINT no_double_spaces_in_title CHECK (title NOT LIKE '%  %') -- Movie title cannot contain double spaces
+);
+
+-- Create table "Halls" to store cinema hall details
+
+CREATE TABLE halls (
+    hall_id INTEGER PRIMARY KEY AUTOINCREMENT,
+    hall_name TEXT NOT NULL UNIQUE CHECK(length(hall_name) > 0), -- Hall name cannot be empty
+    capacity INTEGER NOT NULL CHECK(capacity > 0), -- Hall capacity must be positive
+    CONSTRAINT no_double_spaces_in_hall_name CHECK (hall_name NOT LIKE '%  %') -- Hall name cannot contain double spaces
+);
+
+-- Create table "Sessions" to store session details
+
+CREATE TABLE sessions (
+    session_id INTEGER PRIMARY KEY AUTOINCREMENT,
+    movie_id INTEGER,
+    hall_id INTEGER,
+    begin_at TIMESTAMP NOT NULL, -- Date and time of the session
+    ticket_price REAL NOT NULL CHECK(ticket_price >= 0), -- Ticket price cannot be negative
+    FOREIGN KEY (movie_id) REFERENCES movies (movie_id) ON DELETE CASCADE,
+    FOREIGN KEY (hall_id) REFERENCES halls (hall_id) ON DELETE CASCADE,
+    CONSTRAINT unique_hall_time UNIQUE (hall_id, begin_at) -- Prevent duplicate sessions in the same hall at the same time
+);
+
+-- Create table "Tickets" to store sold tickets
+
+CREATE TABLE tickets (
+    ticket_id INTEGER PRIMARY KEY AUTOINCREMENT,
+    session_id INTEGER,
+    seat_number INTEGER NOT NULL CHECK(seat_number > 0), -- Seat number must be positive
+    sold_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, -- Sale time defaults to current time
+    FOREIGN KEY (session_id) REFERENCES sessions (session_id) ON DELETE CASCADE,
+    CONSTRAINT unique_session_seat UNIQUE(session_id, seat_number) -- Unique combination of session and seat number
+);
+
+-- Create table "Refunds" to store refunded tickets
+
+CREATE TABLE refunds (
+    refund_id INTEGER PRIMARY KEY AUTOINCREMENT,
+    ticket_id INTEGER NOT NULL UNIQUE,
+    refund_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    refund_amount REAL NOT NULL CHECK (refund_amount >= 0), -- Refund amount cannot be negative
+    FOREIGN KEY (ticket_id) REFERENCES tickets(ticket_id) ON DELETE CASCADE
+);
+
+-- Create table "Roles" to store user roles
+
+CREATE TABLE roles (
+    role_id INTEGER PRIMARY KEY AUTOINCREMENT,
+    role_name TEXT UNIQUE NOT NULL CHECK(length(role_name) > 0), -- Role name cannot be empty
+    access_level INTEGER UNIQUE NOT NULL CHECK(access_level > 0), -- Access level must be positive
+    CONSTRAINT no_spaces_in_role_name CHECK (role_name NOT LIKE '% %') -- Role name cannot contain spaces
+);
+
+-- Create table "Users" to store user details
+
+CREATE TABLE users (
+    user_id INTEGER PRIMARY KEY AUTOINCREMENT,
+    username TEXT UNIQUE NOT NULL CHECK(length(username) > 0), -- Username cannot be empty
+    password_hash TEXT NOT NULL CHECK(length(password_hash) > 0), -- Password hash cannot be empty
+    salt TEXT UNIQUE NOT NULL CHECK(length(salt) > 0), -- Salt cannot be empty
+    role_id INTEGER NOT NULL,
+    FOREIGN KEY (role_id) REFERENCES roles(role_id) ON DELETE CASCADE,
+    CONSTRAINT no_spaces_in_username CHECK (username NOT LIKE '% %') -- Username cannot contain spaces
+);
+
@@ -0,0 +1,212 @@
+-- WARNING: In SQLite DELIMITER doesn't work, so this file is handled in a special way
+
+DELIMITER $$
+
+-- INFO: ----- TICKET -----
+
+-- Create trigger to validate seat number before inserting a ticket
+
+-- INSERT
+
+CREATE TRIGGER check_seat_number_before_insert
+BEFORE INSERT ON tickets
+WHEN EXISTS (
+    SELECT 1
+    FROM sessions s
+    INNER JOIN halls h ON s.hall_id = h.hall_id
+    WHERE s.session_id = NEW.session_id
+      AND NEW.seat_number > h.capacity
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1001: Seat number exceeds hall capacity');
+END$$
+
+-- UPDATE
+
+CREATE TRIGGER check_seat_number_before_update
+BEFORE UPDATE ON tickets
+WHEN EXISTS (
+    SELECT 1
+    FROM sessions s
+    INNER JOIN halls h ON s.hall_id = h.hall_id
+    WHERE s.session_id = NEW.session_id
+      AND NEW.seat_number > h.capacity
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1001: Seat number exceeds hall capacity');
+END$$
+
+-- Check if the ticket purchase time is later than the session start time
+
+-- INSERT
+
+CREATE TRIGGER prevent_late_ticket_purchase_before_insert
+BEFORE INSERT ON tickets
+WHEN EXISTS (
+    SELECT 1
+    FROM sessions
+    WHERE session_id = NEW.session_id
+      AND DATETIME(NEW.sold_at) >= DATETIME(begin_at)
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1002: Cannot purchase ticket after the session has started');
+END$$
+
+-- UPDATE
+
+CREATE TRIGGER prevent_late_ticket_purchase_before_update
+BEFORE UPDATE ON tickets
+WHEN EXISTS (
+    SELECT 1
+    FROM sessions
+    WHERE session_id = NEW.session_id
+      AND DATETIME(NEW.sold_at) >= DATETIME(begin_at)
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1002: Cannot purchase ticket after the session has started');
+END$$
+
+
+-- INFO: ----- REFUND -----
+
+-- Create trigger to prevent selling a ticket after the session has started
+
+-- INSERT
+
+CREATE TRIGGER prevent_late_refunds_before_insert
+BEFORE INSERT ON refunds
+WHEN EXISTS (
+    SELECT 1
+    FROM sessions s
+    JOIN tickets t ON s.session_id = t.session_id
+      AND t.ticket_id = NEW.ticket_id
+      WHERE DATETIME(NEW.refund_at) >= DATETIME(s.begin_at)
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1003: Refunds cannot be made after the session has started');
+END$$
+
+-- UPDATE 
+
+CREATE TRIGGER prevent_late_refunds_before_update
+BEFORE UPDATE ON refunds
+WHEN EXISTS (
+    SELECT 1
+    FROM sessions s
+    JOIN tickets t ON s.session_id = t.session_id
+      AND t.ticket_id = NEW.ticket_id
+      WHERE DATETIME(NEW.refund_at) >= DATETIME(s.begin_at)
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1003: Refunds cannot be made after the session has started');
+END$$
+
+
+-- Create a trigger to check if the refund amount is greater than the ticket sale amount
+
+-- INSERT
+
+CREATE TRIGGER validate_refund_amount_before_insert
+BEFORE INSERT ON refunds
+WHEN NEW.refund_amount > (
+    SELECT ticket_price
+    FROM sessions s
+    JOIN tickets t ON s.session_id = t.session_id
+    WHERE t.ticket_id = NEW.ticket_id
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1004: Refund amount cannot exceed the sale amount');
+END$$
+
+-- UPDATE
+
+CREATE TRIGGER validate_refund_amount_before_update
+BEFORE UPDATE ON refunds
+WHEN NEW.refund_amount > (
+    SELECT ticket_price
+    FROM sessions s
+    JOIN tickets t ON s.session_id = t.session_id
+    WHERE t.ticket_id = NEW.ticket_id
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1004: Refund amount cannot exceed the sale amount');
+END$$
+
+-- Create a trigger to check if the refund date is earlier than the sale date
+
+-- INSERT
+
+CREATE TRIGGER validate_refund_date_before_insert
+BEFORE INSERT ON refunds
+WHEN EXISTS (
+    SELECT 1
+    FROM tickets
+    WHERE ticket_id = NEW.ticket_id
+      AND DATETIME(NEW.refund_at) <= DATETIME(sold_at)
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1005: Refund date cannot be earlier than the sale date or equal to it');
+END$$
+
+-- UPDATE
+
+CREATE TRIGGER validate_refund_date_before_update
+BEFORE UPDATE ON refunds
+WHEN EXISTS (
+    SELECT 1
+    FROM tickets
+    WHERE ticket_id = NEW.ticket_id
+      AND DATETIME(NEW.refund_at) <= DATETIME(sold_at)
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1005: Refund date cannot be earlier than the sale date or equal to it');
+END$$
+
+-- INFO: ----- SESSION -----
+
+-- Trigger to prevent overlapping sessions
+
+--INSERT
+
+CREATE TRIGGER prevent_overlapping_sessions_before_insert
+BEFORE INSERT ON sessions
+WHEN EXISTS (
+    SELECT 1
+    FROM sessions s
+    JOIN movies m_existing ON s.movie_id = m_existing.movie_id
+    JOIN movies m_new ON NEW.movie_id = m_new.movie_id
+    WHERE s.hall_id = NEW.hall_id
+      AND (
+          -- The new movie starts within an already occupied time slot  
+          NEW.begin_at < DATETIME(s.begin_at, '+' || m_existing.duration || ' minutes')  
+          -- Or the existing movie starts within the new movie's time slot  
+          AND s.begin_at < DATETIME(NEW.begin_at, '+' || m_new.duration || ' minutes')
+      )
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1006: The new session overlaps with an ongoing movie in the hall');
+END$$
+
+-- UPDATE
+
+CREATE TRIGGER prevent_overlapping_sessions_before_update
+BEFORE UPDATE ON sessions
+WHEN EXISTS (
+    SELECT 1
+    FROM sessions s
+    JOIN movies m_existing ON s.movie_id = m_existing.movie_id
+    JOIN movies m_new ON NEW.movie_id = m_new.movie_id
+    WHERE s.hall_id = NEW.hall_id
+      AND (
+          -- The new movie starts within an already occupied time slot  
+          NEW.begin_at < DATETIME(s.begin_at, '+' || m_existing.duration || ' minutes')  
+          -- Or the existing movie starts within the new movie's time slot  
+          AND s.begin_at < DATETIME(NEW.begin_at, '+' || m_new.duration || ' minutes')
+      )
+)
+BEGIN
+    SELECT RAISE(FAIL, 'Error 1006: The new session overlaps with an ongoing movie in the hall');
+END$$
+
+DELIMITER ;
+
@@ -0,0 +1,32 @@
+CREATE VIEW sessions_statistics AS
+SELECT
+    s.session_id,
+    s.begin_at,
+    s.ticket_price,
+    h.hall_id,
+    h.hall_name,
+    h.capacity AS total_seats,
+    m.movie_id,
+    m.title AS movie_title,
+    m.duration,
+    g.genre_id,
+    g.genre_name,
+    COUNT(t.ticket_id) AS sold_tickets,
+    COUNT(r.refund_id) AS refunded_tickets,
+    SUM(CASE WHEN t.ticket_id IS NOT NULL THEN s.ticket_price ELSE 0 END) AS sales_revenue,
+    SUM(CASE WHEN r.refund_id IS NOT NULL THEN r.refund_amount ELSE 0 END) AS refund_expenses
+FROM halls h
+JOIN sessions s 
+    ON s.hall_id = h.hall_id
+JOIN movies m
+    ON s.movie_id = m.movie_id
+JOIN genres g
+    ON m.genre_id = g.genre_id
+LEFT JOIN tickets t 
+    ON t.session_id = s.session_id
+LEFT JOIN refunds r
+    ON r.ticket_id = t.ticket_id
+GROUP BY
+    s.session_id;
+
+
@@ -0,0 +1,3 @@
+-- Disable foreign keys
+-- Necessary testing behavior
+PRAGMA foreign_keys = OFF;
@@ -0,0 +1,3 @@
+-- Enable foreign keys
+-- The necessary behavior for the normal operation of the program
+PRAGMA foreign_keys = ON;
@@ -0,0 +1,23 @@
+-- Insert data into the genres table
+
+INSERT INTO genres (genre_id, genre_name) VALUES
+(1, 'Боевик'),
+(2, 'Комедия'),
+(3, 'Драма'),
+(4, 'Фантастика'),
+(5, 'Ужасы'),
+(6, 'Триллер'),
+(7, 'Мелодрама'),
+(8, 'Приключения'),
+(9, 'Анимация'),
+(10, 'Детектив'),
+(11, 'Фэнтези'),
+(12, 'Исторический'),
+(13, 'Военный'),
+(14, 'Музыкальный'),
+(15, 'Семейный'),
+(16, 'Спорт'),
+(17, 'Документальный'),
+(18, 'Криминал'),
+(19, 'Биография'),
+(20, 'Вестерн');
@@ -0,0 +1,7 @@
+-- Insert data into the halls table
+
+INSERT INTO halls (hall_name, capacity) VALUES ('Hall 1', 100);
+INSERT INTO halls (hall_name, capacity) VALUES ('Hall 2', 150);
+INSERT INTO halls (hall_name, capacity) VALUES ('VIP Hall', 50);
+INSERT INTO halls (hall_name, capacity) VALUES ('IMAX Hall', 200);
+
@@ -0,0 +1,100 @@
+-- Insert data into the movies table
+
+INSERT INTO movies (title, genre_id, duration) VALUES
+('Титаник', 3, 195),
+('Матрица', 4, 136),
+('Крепкий орешек', 1, 132),
+('Один дома', 2, 103),
+('Пила', 5, 103),
+('Начало', 6, 148),
+('Титаник 2', 3, 120),
+('Звездные войны: Эпизод IV', 4, 121),
+('Терминатор', 1, 107),
+('Мальчишник в Вегасе', 2, 100),
+('Звонок', 5, 115),
+('Семь', 6, 127),
+('Форрест Гамп', 3, 142),
+('Аватар', 4, 162),
+('Рокки', 1, 119),
+('Маска', 2, 101),
+('Оно', 5, 135),
+('Молчание ягнят', 6, 118),
+('Красота по-американски', 3, 122),
+('Интерстеллар', 4, 169),
+('Терминатор 2', 1, 137),
+('День сурка', 2, 101),
+('Пила 2', 5, 93),
+('Игра', 6, 129),
+('Список Шиндлера', 3, 195),
+('Чужой', 4, 117),
+('Рэмбо', 1, 93),
+('Брюс Всемогущий', 2, 101),
+('Заклятие', 5, 112),
+('Шестое чувство', 6, 107),
+('Гладиатор', 3, 155),
+('Звездные войны: Эпизод V', 4, 124),
+('Терминатор 3', 1, 109),
+('Мальчишник 2', 2, 105),
+('Пила 3', 5, 108),
+('Остров проклятых', 6, 138),
+('Властелин колец: Братство кольца', 11, 178),
+('Властелин колец: Две крепости', 11, 179),
+('Властелин колец: Возвращение короля', 11, 201),
+('Гарри Поттер и философский камень', 11, 152),
+('Гарри Поттер и Тайная комната', 11, 161),
+('Гарри Поттер и узник Азкабана', 11, 142),
+('Гарри Поттер и Кубок огня', 11, 157),
+('Гарри Поттер и Орден Феникса', 11, 138),
+('Гарри Поттер и Принц-полукровка', 11, 153),
+('Гарри Поттер и Дары Смерти: Часть 1', 11, 146),
+('Гарри Поттер и Дары Смерти: Часть 2', 11, 130),
+('Пираты Карибского моря: Проклятие Черной жемчужины', 8, 143),
+('Пираты Карибского моря: Сундук мертвеца', 8, 151),
+('Пираты Карибского моря: На краю света', 8, 169),
+('Пираты Карибского моря: На странных берегах', 8, 136),
+('Пираты Карибского моря: Мертвецы не рассказывают сказки', 8, 129),
+('Хоббит: Нежданное путешествие', 11, 169),
+('Хоббит: Пустошь Смауга', 11, 161),
+('Хоббит: Битва пяти воинств', 11, 144),
+('Король Лев', 9, 88),
+('Холодное сердце', 9, 102),
+('Холодное сердце 2', 9, 103),
+('Зверополис', 9, 108),
+('История игрушек', 9, 81),
+('История игрушек 2', 9, 92),
+('История игрушек 3', 9, 103),
+('История игрушек 4', 9, 100),
+('В поисках Немо', 9, 100),
+('В поисках Дори', 9, 97),
+('Шрек', 9, 90),
+('Шрек 2', 9, 93),
+('Шрек Третий', 9, 93),
+('Шрек навсегда', 9, 93),
+('Кунг-фу Панда', 9, 92),
+('Кунг-фу Панда 2', 9, 90),
+('Кунг-фу Панда 3', 9, 95),
+('Как приручить дракона', 9, 98),
+('Как приручить дракона 2', 9, 102),
+('Как приручить дракона 3', 9, 104),
+('Рататуй', 9, 111),
+('Головоломка', 9, 94),
+('Суперсемейка', 9, 115),
+('Суперсемейка 2', 9, 118),
+('Тачки', 9, 117),
+('Тачки 2', 9, 106),
+('Тачки 3', 9, 102),
+('Корпорация монстров', 9, 92),
+('Университет монстров', 9, 104),
+('Валл-И', 9, 98),
+('Вверх', 9, 96),
+('Храбрая сердцем', 9, 93),
+('Ральф', 9, 101),
+('Ральф против интернета', 9, 112),
+('Моана', 9, 107),
+('Зверопой', 9, 108),
+('Зверопой 2', 9, 110),
+('Коко', 9, 105),
+('Душа', 9, 100),
+('Лука', 9, 95),
+('Райя и последний дракон', 9, 107),
+('Энканто', 9, 102);
@@ -0,0 +1,9 @@
+-- Insert data into the roles table 
+
+INSERT INTO roles (role_name, access_level) VALUES ('Cashier', 10);
+INSERT INTO roles (role_name, access_level) VALUES ('SalesManager', 28);
+INSERT INTO roles (role_name, access_level) VALUES ('DataEditor', 46);
+INSERT INTO roles (role_name, access_level) VALUES ('RepertoireManager', 64);
+INSERT INTO roles (role_name, access_level) VALUES ('DataAdministrator', 82);
+INSERT INTO roles (role_name, access_level) VALUES ('SuperAdministrator', 100);
+
@@ -0,0 +1,40 @@
+-- Insert users with different roles
+
+-- Cashiers (role_id = 1), password: cashier (cashier1 & cashier2), cashier_alt (cashier3)
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('cashier1', '43f4fded07f17b903867b8293ad429b0c826e5d2c8ac5a66ed58cf3cc511ee60', 'random_salt_1', 1); 
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('cashier2', '2a2aebce4cc19cfd384377617e3008d42caeb0172970b64e8d39778995950cfc', 'random_salt_2', 1);
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('cashier3', 'a474eac28b808053cf8fddd7d53412d710c1adeb218c0bd7b91add5760b16885', 'random_salt_3', 1);
+
+-- Sales Managers (role_id = 2), password: sales_manager1, sales_manager2
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('sales_manager1', '3ac5657c3cc5b44e291aed9f3dcf4881af3c6c53b49b31ef5ab0e35ef04d32dc', 'random_salt_4', 2);
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('sales_manager2', '40ad3df805e5173265f65206b1a9fa1c04b7f2ebbd30d5c4bc8ae496c01e89c3', 'random_salt_5', 2);
+
+-- Data Editors (role_id = 3), password: data_editor1, data_editor2
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('data_editor1', '53a6ad3f69d1ba0f16fab96a295340a70aa6dd4524a06a9e281b458ec1bffdeb', 'random_salt_6', 3);
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('data_editor2', '074423b2b32d87ea875905962f10cabe0623b75532323f7a6d1f29ff51a556e0', 'random_salt_7', 3);
+
+-- Repertoire Managers (role_id = 4), password: repertoire_manager1, repertoire_manager2
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('repertoire_manager1', 'd57d697fe8df03559cbd7cb6c15d29fc6584556ba92291400db64a788a788bd5', 'random_salt_8', 4);
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('repertoire_manager2', '74a0a0bceb65454779c8acb2705df36a905355e10b96fa0360a023aaddbac2cf', 'random_salt_9', 4);
+
+-- Data Administrators (role_id = 5), password: data_admin1, data_admin2
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('data_admin1', '1b755d9430baa5f6db977e3ed87fc9d2d0b6e89e35c0f04529ec7484ca57ab54', 'random_salt_10', 5);
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('data_admin2', '465a2368e915fc5bbc8f1ff56fec3bb5fda92088cb64285b4419507012677bf3', 'random_salt_11', 5);
+
+-- Super Administrators (role_id = 6), password: super_admin1, super_admin2
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('super_admin1', 'b687b754afbbb073178a2b50f10dad03d0ff54019b771b1853c5ee3bfc6d93d2', 'random_salt_12', 6);
+INSERT INTO users (username, password_hash, salt, role_id) VALUES 
+('super_admin2', 'cad48cc6068cfc8f164e16422f1c92e4cd52fa446d1ac2fa2a678406fa60c6b6', 'random_salt_13', 6);
+