SQL tworzący tabele bazy sklep

PC25-SklepWeb/sql/sklep.sql

+/* Ten skrypt należy wykonać jako użytkownik kurs w bazie sklep (!). */
+
+DROP TABLE IF EXISTS order_products;
+DROP TABLE IF EXISTS orders;
+DROP TABLE IF EXISTS customers;
+DROP TABLE IF EXISTS products;
+DROP TYPE IF EXISTS order_status;
+DROP SEQUENCE IF EXISTS orders_seq;
+DROP SEQUENCE IF EXISTS products_seq;
+
+CREATE SEQUENCE products_seq
+    START 10;
+
+CREATE SEQUENCE orders_seq
+    START 10;
+
+CREATE TABLE products (
+    product_id INTEGER DEFAULT nextval('products_seq'),
+    product_name VARCHAR(100) NOT NULL,
+    price NUMERIC(10, 2) NOT NULL CHECK (price > 0),
+    vat NUMERIC(2, 2) CHECK (vat >= 0), -- 0.00 do 0.99
+    description TEXT,
+    
+    PRIMARY KEY(product_id)
+);
+
+CREATE TABLE customers (
+    customer_email VARCHAR(255),
+    name VARCHAR(200) NOT NULL,
+    phone_number VARCHAR(20),
+    address VARCHAR(200),
+    postal_code CHAR(6),
+    city VARCHAR(100),
+    
+    PRIMARY KEY(customer_email)
+);
+
+CREATE TYPE order_status AS ENUM (
+    'new',
+    'confirmed',
+    'paid',
+    'shipped',
+    'closed',
+    'returned'
+);
+
+CREATE TABLE orders (
+    order_id INTEGER DEFAULT nextval('orders_seq'),
+    customer_email VARCHAR(255) NOT NULL,
+    status order_status DEFAULT 'new' NOT NULL,
+    order_date TIMESTAMP DEFAULT current_timestamp,
+    planned_delivery_date DATE,
+    delivery_date DATE,
+    
+    PRIMARY KEY(order_id),
+    FOREIGN KEY(customer_email) REFERENCES customers(customer_email)
+);
+
+CREATE TABLE order_products (
+    order_id INTEGER NOT NULL,
+    product_id INTEGER NOT NULL,
+    quantity SMALLINT DEFAULT 1 NOT NULL CHECK (quantity > 0),
+    actual_price NUMERIC(10, 2) NOT NULL,
+    actual_vat NUMERIC(2, 2),
+    
+    PRIMARY KEY (order_id, product_id),
+    FOREIGN KEY (order_id) REFERENCES orders(order_id),
+    FOREIGN KEY (product_id) REFERENCES products(product_id)
+);
+
+
+
+
+INSERT INTO products(product_id, product_name, price, vat, description)
+    VALUES (1, 'pralka', 2900.00, 0.23, 'Pralka szybkoobrotowa');
+
+INSERT INTO products(product_id, product_name, price, vat, description)
+    VALUES (2, 'odkurzacz', 800.00, 0.23, 'Odkurzacz automatyczny');
+
+INSERT INTO products(product_id, product_name, price, vat, description)
+    VALUES (3, 'telewizor 55"', 3300.00, 0.23, 'Telewizor 55 cali 4K');
+
+INSERT INTO products(product_id, product_name, price, vat, description)
+    VALUES (4, 'telewizor 40"', 2200.00, 0.23, 'Telewizor 40 Full HD');
+
+INSERT INTO products(product_id, product_name, price, vat)
+    VALUES (5, 'myszka gejmerska', 444.00, 0.23);
+
+    
+INSERT INTO customers(customer_email, phone_number, name, address, postal_code, city)
+    VALUES ('ala@example.com', '123123123', 'Ala Kowalska', 'Jasna 14/16', '01-234', 'Warszawa');
+
+INSERT INTO customers(customer_email, phone_number, name, address, postal_code, city)
+    VALUES ('ola@example.com', '321321321', 'Ola Malinowska', 'Ciemna 133', '99-999', 'Pcim');
+
+
+INSERT INTO orders(order_id, customer_email, order_date, status)
+    VALUES (1, 'ala@example.com', '2021-11-20 12:30:00', 'paid');
+
+INSERT INTO orders(order_id, customer_email, order_date, status)
+    VALUES (2, 'ola@example.com', '2021-11-18 10:00:00', 'shipped');
+
+INSERT INTO orders(order_id, customer_email)
+    VALUES (3, 'ala@example.com');
+
+
+INSERT INTO order_products(order_id, product_id, quantity, actual_price, actual_vat)
+    VALUES (1, 1, 1, 2900.00, 0.23);
+INSERT INTO order_products(order_id, product_id, quantity, actual_price, actual_vat)
+    VALUES (1, 2, 3, 2400.00, 0.23);
+INSERT INTO order_products(order_id, product_id, quantity, actual_price, actual_vat)
+    VALUES (2, 2, 1, 800.00, 0.23);
+INSERT INTO order_products(order_id, product_id, quantity, actual_price, actual_vat)
+    VALUES (3, 4, 1, 2200.00, 0.23);
+INSERT INTO order_products(order_id, product_id, quantity, actual_price, actual_vat)
+    VALUES (3, 3, 1, 300.00, 0.23);
+INSERT INTO order_products(order_id, product_id, quantity, actual_price, actual_vat)
+    VALUES (3, 5, 1, 1000.00, 0.23);