{"id":145282,"date":"2025-06-11T13:00:14","date_gmt":"2025-06-11T07:30:14","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145282"},"modified":"2025-06-11T13:00:14","modified_gmt":"2025-06-11T07:30:14","slug":"restaurant-billing-system-using-python","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/restaurant-billing-system-using-python\/","title":{"rendered":"Python Project &#8211; Restaurant Billing System"},"content":{"rendered":"<h3>SQL Queries<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">CREATE DATABASE restaurant_db;\r\nUSE restaurant_db;\r\n\r\nCREATE TABLE customers (\r\n    customer_id INT AUTO_INCREMENT PRIMARY KEY,\r\n    name VARCHAR(100),\r\n    contact VARCHAR(15)\r\n);\r\n\r\nCREATE TABLE menu_items (\r\n    item_id INT AUTO_INCREMENT PRIMARY KEY,\r\n    item_name VARCHAR(100),\r\n    price DECIMAL(10,2)\r\n);\r\n\r\nCREATE TABLE orders (\r\n    order_id INT AUTO_INCREMENT PRIMARY KEY,\r\n    customer_id INT,\r\n    order_date DATE,\r\n    FOREIGN KEY (customer_id) REFERENCES customers(customer_id)\r\n);\r\n\r\nCREATE TABLE order_items (\r\n    order_item_id INT AUTO_INCREMENT PRIMARY KEY,\r\n    order_id INT,\r\n    item_id INT,\r\n    quantity INT,\r\n    FOREIGN KEY (order_id) REFERENCES orders(order_id),\r\n    FOREIGN KEY (item_id) REFERENCES menu_items(item_id)\r\n);\r\n\r\nCREATE TABLE payments (\r\n    payment_id INT AUTO_INCREMENT PRIMARY KEY,\r\n    order_id INT,\r\n    payment_date DATE,\r\n    amount DECIMAL(10,2),\r\n    method VARCHAR(50),\r\n    FOREIGN KEY (order_id) REFERENCES orders(order_id)\r\n);<\/pre>\n<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"># **************RestaurantBillingSystem********************\r\n\r\nimport mysql.connector\r\nfrom datetime import date\r\n\r\nconnection = mysql.connector.connect(\r\n    host=\"localhost\",\r\n    user=\"root\",\r\n    password=\"root\",\r\n    database=\"rest_billing_system\"\r\n)\r\ncursor = connection.cursor()\r\n\r\ndef show_menu():\r\n    cursor.execute(\"SELECT item_id, name, price FROM menu_items\")\r\n    print(\"Menu Items:\")\r\n    for item_id, name, price in cursor.fetchall():\r\n        print(f\"{item_id}: {name} - Rs:{price}\")\r\n    print(\"-------------------------------------------------------------\")\r\ndef take_order():\r\n    show_menu()\r\n    order_items = []   # Order List (Empty)\r\n    while True:\r\n        item_id = input(\"Enter Item ID (or 'done' to finish): \")\r\n        if item_id.lower() == 'done':\r\n            break\r\n        qty = int(input(\"Enter quantity: \"))\r\n        order_items.append((int(item_id), qty))\r\n    return order_items\r\n\r\ndef process_order(order_items):\r\n    cname=input(\"Enter Customer Name:\")\r\n    cphone=input(\"Enter Customer Contact:\")\r\n    cursor.execute(\"INSERT INTO customers (name, phone) VALUES(%s,%s)\", (cname, cphone))\r\n    #cursor.execute(\"INSERT INTO customers (name, phone) VALUES ('Walk-in', 'N\/A')\")\r\n    customer_id = cursor.lastrowid\r\n\r\n    cursor.execute(\"INSERT INTO orders (customer_id, order_date) VALUES (%s, %s)\", (customer_id, date.today()))\r\n    order_id = cursor.lastrowid\r\n\r\n    total = 0.0\r\n    for item_id, qty in order_items:\r\n        cursor.execute(\"SELECT price FROM menu_items WHERE item_id = %s\", (item_id,))\r\n        price = float(cursor.fetchone()[0])\r\n        total=total+(price * qty)\r\n        cursor.execute(\"INSERT INTO order_items (order_id, item_id, quantity) VALUES (%s, %s, %s)\", (order_id, item_id, qty))\r\n    \r\n    print(f\"-----Total Bill: Rs {total}\")\r\n    method = input(\"Enter payment method (Cash\/Card\/UPI): \")\r\n    cursor.execute(\"INSERT INTO payments (order_id, amount_paid, payment_method,payment_date) VALUES (%s, %s, %s, %s)\",\r\n                   (order_id, total, method,date.today()))\r\n\r\n    connection.commit()\r\n    print(\"Order placed successfully!\")\r\n    print(f\"Total Bill: Rs {total}\")\r\n\r\ndef main():\r\n    while True:\r\n        print(\"*****Restaurant Billing System*****\")\r\n        print(\"\\n1. Show Menu\")\r\n        print(\"2. Take New Order\")\r\n        print(\"3. Exit\")\r\n        choice = input(\"Enter choice: \")\r\n        if choice == '1':\r\n            show_menu()\r\n        elif choice == '2':\r\n            items = take_order()\r\n            process_order(items)\r\n        elif choice == '3':\r\n            break\r\n\r\nif __name__ == \"__main__\":\r\n    main()<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SQL Queries CREATE DATABASE restaurant_db; USE restaurant_db; CREATE TABLE customers ( customer_id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(100), contact VARCHAR(15) ); CREATE TABLE menu_items ( item_id INT AUTO_INCREMENT PRIMARY KEY, item_name VARCHAR(100), price DECIMAL(10,2)&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[10333,28626,22366,34373,21082,34371,34376,34374,34375,34372],"class_list":["post-145282","post","type-post","status-publish","format-standard","hentry","category-python","tag-python","tag-python-practical","tag-python-program","tag-python-program-on-restaurant-billing-system","tag-python-project","tag-python-restaurant-billing-system","tag-python-restaurant-billing-system-project","tag-restaurant-billing-system","tag-restaurant-billing-system-project","tag-restaurant-billing-system-using-python"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Python Project - Restaurant Billing System - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/restaurant-billing-system-using-python\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Project - Restaurant Billing System - DataFlair\" \/>\n<meta property=\"og:description\" content=\"SQL Queries CREATE DATABASE restaurant_db; USE restaurant_db; CREATE TABLE customers ( customer_id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(100), contact VARCHAR(15) ); CREATE TABLE menu_items ( item_id INT AUTO_INCREMENT PRIMARY KEY, item_name VARCHAR(100), price DECIMAL(10,2)&#046;&#046;&#046;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/restaurant-billing-system-using-python\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-11T07:30:14+00:00\" \/>\n<meta name=\"author\" content=\"DataFlair Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DataFlair Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Python Project - Restaurant Billing System - DataFlair","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/restaurant-billing-system-using-python\/","og_locale":"en_US","og_type":"article","og_title":"Python Project - Restaurant Billing System - DataFlair","og_description":"SQL Queries CREATE DATABASE restaurant_db; 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