{ "format": "dataset-manifest/1", "slug": "restaurant-sample-database", "version": 1, "seed": "flagship:restaurant-sample-database:1k", "engine": 2, "engineVersion": "1.0.0", "spec": { "format": "dataset/1", "engine": 2, "slug": "restaurant-sample-database", "name": "Restaurant sample database", "tagline": "Orders, order lines and payments, a priced menu, reservations, feedback, staff shifts and delivery riders.", "description": "A restaurant over five years, 2021 to 2025, that seats guests, takes bookings and delivers. Customers order from a 49-item menu in six categories; every order line is priced at the menu price, every order totals its lines, and every order is paid in full within ninety minutes of being placed. About four orders in ten go out with a delivery rider. Orders peak at lunch and again, higher, at dinner. Some guests rate their order in the days after it; a rating comes from the customer who placed the order. Staff and riders work set shifts, attendance has one row per person per day, and online bookings are for one to four people at tables that seat at least four.", "domain": "restaurants", "shape": "transactional", "useCases": [ "sql-practice", "bi-dashboards", "test-fixtures" ], "keywords": [ "restaurant", "orders", "menu", "reservations", "sample database" ], "locale": "en_US", "license": "CC0-1.0", "version": 1, "seed": "flagship:restaurant-sample-database", "tables": { "area_codes": { "description": "Rows for the area_codes table.", "rows": 10, "columns": { "id": { "kind": "pk" }, "area_code": { "kind": "enum", "values": [ "DTN", "MID", "HBR", "UNI", "OLD", "RVR", "NHL", "EST", "WST", "APT" ], "unique": true }, "area_description": { "kind": "enum", "values": [ "Downtown", "Midtown", "Harbor", "University District", "Old Town", "Riverside", "North Hills", "East Side", "West End", "Airport" ] } } }, "attendance": { "description": "Rows for the attendance table.", "rows": 30, "columns": { "attendance_id": { "kind": "pk" }, "date": { "kind": "date", "from": "2021-01-01", "to": "2025-12-31" }, "staff_id": { "kind": "fk", "ref": "staff.staff_id", "skew": "flat" }, "status": { "kind": "enum", "values": [ "present", "late", "absent", "on_leave" ], "weights": [ 86, 6, 4, 4 ] } } }, "customer_offers": { "description": "Rows for the customer_offers table.", "rows": 20, "columns": { "id": { "kind": "pk" }, "customer_id": { "kind": "fk", "ref": "customers.customer_id", "skew": "flat" }, "offer_id": { "kind": "fk", "ref": "special_offers.offer_id", "skew": "flat" } } }, "customers": { "description": "Rows for the customers table.", "rows": 30, "columns": { "customer_id": { "kind": "pk" }, "address": { "kind": "location.streetAddress" }, "email": { "kind": "internet.email", "from": { "firstName": "first_name", "lastName": "last_name" }, "unique": true }, "first_name": { "kind": "person.firstName" }, "last_name": { "kind": "person.lastName" }, "phone": { "kind": "phone.number" }, "premium_status": { "kind": "bool", "trueRate": 0.12 } } }, "delivery_assignments": { "description": "Rows for the delivery_assignments table.", "rows": 45, "columns": { "id": { "kind": "pk" }, "area_code": { "kind": "fk", "ref": "area_codes.id", "skew": "flat" }, "delivery_boy_id": { "kind": "fk", "ref": "delivery_boys.delivery_boy_id", "skew": "flat" } } }, "delivery_boys": { "description": "Rows for the delivery_boys table.", "rows": 30, "columns": { "delivery_boy_id": { "kind": "pk" }, "assigned_area_code": { "kind": "enum", "values": [ "DTN", "MID", "HBR", "UNI", "OLD", "RVR", "NHL", "EST", "WST", "APT" ], "description": "The area the rider starts a shift in." }, "name": { "kind": "person.fullName" }, "phone": { "kind": "phone.number" } } }, "delivery_shifts": { "description": "Rows for the delivery_shifts table.", "rows": 4, "columns": { "shift_id": { "kind": "pk" }, "shift_end_time": { "kind": "enum", "values": [ "10:30:00", "14:30:00", "15:00:00", "17:30:00", "19:00:00", "22:30:00", "23:30:00" ], "type": "time" }, "shift_start_time": { "kind": "enum", "values": [ "10:30:00", "14:30:00", "15:00:00", "17:30:00", "19:00:00", "22:30:00", "23:30:00" ], "type": "time" } } }, "feedback": { "description": "Rows for the feedback table.", "rows": 50, "columns": { "feedback_id": { "kind": "pk" }, "comments": { "kind": "enum", "values": [ "Food arrived hot", "Delivery was late", "Great service", "Portion was small", "Will order again", "Order was missing an item", "Lovely atmosphere", "Too salty", "Best pizza in town", "Friendly staff" ], "nullable": true, "nullRate": 0.35 }, "customer_id": { "kind": "copy", "from": "order_id.customer_id", "description": "The customer who placed the order." }, "feedback_date": { "kind": "datetime", "after": "order_id.order_date", "withinDays": 3, "dayProfile": "waking" }, "order_id": { "kind": "fk", "ref": "orders.order_id", "unique": true }, "rating": { "kind": "enum", "values": [ "5", "4", "3", "2", "1" ], "weights": [ 44, 31, 12, 7, 6 ], "type": "integer" } } }, "food_and_beverage_catalog": { "description": "Rows for the food_and_beverage_catalog table.", "rows": 49, "columns": { "item_id": { "kind": "pk" }, "category_id": { "kind": "fk", "ref": "food_category.category_id", "skew": "long-tail" }, "description": { "kind": "enum", "values": [ "330 ml bottle", "500 ml bottle", "A 125 ml glass", "A 175 ml glass", "A double shot", "A pint of the house lager", "A pot for one", "Arborio rice, wild mushrooms and parmesan", "Baked cheesecake with berry compote", "Beef patty, cheddar, pickles and fries", "Beef ragu, bechamel and parmesan", "Beer-battered cod, chips and mushy peas", "Black bean patty, avocado and fries", "Burrata, heirloom tomatoes and basil oil", "Coffee, mascarpone and cocoa", "Dairy free", "Dark chocolate layer cake", "Egg, pecorino, black pepper and guanciale", "Espresso with steamed milk", "Espresso with steamed milk and foam", "Falafel, hummus, salad and flatbread", "Fresh mint leaves", "Herb-roasted, with gravy and mash", "Ice cream, hot fudge, nuts and a cherry", "Lightly fried squid with lemon aioli", "Made in house", "Mozzarella, gorgonzola, fontina and parmesan", "Peppers, mushrooms, onion and olives", "Roasted tomatoes, basil and a swirl of cream", "Romaine, parmesan, croutons and anchovy dressing", "Salmon fillet, greens and lemon butter", "Scallops with pea puree and pancetta", "Shrimp, garlic, chilli and white wine", "Six wings, buffalo sauce and blue cheese dip", "Slow-cooked onions under a gruyere crouton", "Smoked ribs with barbecue glaze and slaw", "Squeezed to order", "Three scoops", "Toasted sourdough with garlic butter", "Tomato, cucumber, olives, red onion and feta", "Tomato, garlic and basil on grilled bread", "Tomato, garlic and chilli", "Tomato, mozzarella and basil", "Tomato, mozzarella and pepperoni", "Twelve ounces, chips and peppercorn sauce", "Vegetables, beans and small pasta in tomato broth", "Warm, with vanilla ice cream" ] }, "is_available": { "kind": "bool", "trueRate": 0.94 }, "name": { "kind": "enum", "values": [ "Tomato Basil Soup", "French Onion Soup", "Minestrone", "Caesar Salad", "Greek Salad", "Burrata and Tomato Salad", "Garlic Bread", "Chicken Wings", "Fried Calamari", "Bruschetta", "Ribeye Steak", "Cheeseburger", "Half Roast Chicken", "Pork Ribs", "Grilled Salmon", "Fish and Chips", "Seared Scallops", "Mushroom Risotto", "Veggie Burger", "Falafel Plate", "Margherita Pizza", "Pepperoni Pizza", "Four Cheese Pizza", "Vegetable Pizza", "Spaghetti Carbonara", "Lasagna", "Penne Arrabbiata", "Shrimp Linguine", "Chocolate Cake", "New York Cheesecake", "Tiramisu", "Apple Pie", "Vanilla Ice Cream", "Ice Cream Sundae", "Lemon Sorbet", "Espresso", "Cappuccino", "Latte", "English Breakfast Tea", "Green Tea", "Mint Tea", "Cola", "Lemonade", "Sparkling Water", "Fresh Orange Juice", "Draft Beer", "House Red Wine", "House White Wine", "Prosecco" ], "unique": true }, "price": { "kind": "decimal", "min": 2, "max": 30, "scale": 2 }, "subcategory_id": { "kind": "fk", "ref": "food_subcategory.subcategory_id", "skew": "long-tail" } } }, "food_category": { "description": "Rows for the food_category table.", "rows": 6, "columns": { "category_id": { "kind": "pk" }, "category_name": { "kind": "enum", "values": [ "Starters", "Mains", "Pizza and Pasta", "Desserts", "Hot Drinks", "Cold Drinks" ], "unique": true } } }, "food_subcategory": { "description": "Rows for the food_subcategory table.", "rows": 14, "columns": { "subcategory_id": { "kind": "pk" }, "category_id": { "kind": "fk", "ref": "food_category.category_id", "skew": "long-tail" }, "subcategory_name": { "kind": "enum", "values": [ "Soups", "Salads", "Small Plates", "Grill", "Seafood", "Vegetarian", "Pizza", "Pasta", "Cakes", "Ice Cream", "Coffee", "Tea", "Soft Drinks", "Beer and Wine" ], "unique": true } } }, "order_items": { "description": "Rows for the order_items table.", "rows": 1000, "columns": { "order_item_id": { "kind": "pk" }, "item_id": { "kind": "fk", "ref": "food_and_beverage_catalog.item_id", "weights": [ 6, 4, 3, 7, 4, 2, 9, 8, 5, 5, 6, 14, 6, 4, 6, 7, 2, 4, 5, 3, 14, 13, 7, 5, 10, 7, 5, 4, 5, 5, 6, 3, 3, 4, 1, 6, 9, 8, 3, 2, 2, 12, 7, 8, 5, 9, 6, 5, 3 ] }, "order_id": { "kind": "fk", "ref": "orders.order_id", "skew": "flat" }, "price": { "kind": "decimal", "min": 0, "max": 28, "scale": 2 }, "quantity": { "kind": "enum", "values": [ "1", "2", "3", "4" ], "weights": [ 64, 25, 7, 4 ], "type": "integer" } } }, "orders": { "description": "Rows for the orders table.", "rows": 350, "columns": { "order_id": { "kind": "pk" }, "customer_id": { "kind": "fk", "ref": "customers.customer_id", "skew": "long-tail" }, "delivery_boy_id": { "kind": "fk", "ref": "delivery_boys.delivery_boy_id", "nullable": true, "nullRate": 0.6 }, "order_date": { "kind": "datetime", "from": "2021-01-01", "to": "2025-12-31", "dayProfile": "meals", "trend": "growing" }, "order_status": { "kind": "constant", "value": "completed" }, "total_amount": { "kind": "decimal", "min": 0, "max": 600, "scale": 2 } } }, "payments": { "description": "Rows for the payments table.", "rows": 350, "columns": { "payment_id": { "kind": "pk" }, "amount": { "kind": "decimal", "min": 0, "max": 165, "scale": 2 }, "order_id": { "kind": "fk", "ref": "orders.order_id", "unique": true }, "payment_date": { "kind": "datetime", "from": "2021-01-01", "to": "2025-12-31" }, "payment_method": { "kind": "enum", "values": [ "card", "cash", "mobile_wallet", "gift_card" ], "weights": [ 58, 22, 17, 3 ] } } }, "promotion_items": { "description": "Rows for the promotion_items table.", "rows": 60, "columns": { "id": { "kind": "pk" }, "item_id": { "kind": "fk", "ref": "food_and_beverage_catalog.item_id", "skew": "flat" }, "promotion_id": { "kind": "fk", "ref": "promotions.promotion_id", "skew": "flat" } } }, "promotions": { "description": "Rows for the promotions table.", "rows": 12, "columns": { "promotion_id": { "kind": "pk" }, "description": { "kind": "enum", "values": [ "Dine-in only", "Delivery and dine-in", "Weekdays only", "While stocks last" ] }, "discount_percentage": { "kind": "enum", "values": [ "10", "15", "20", "25" ], "weights": [ 35, 30, 25, 10 ], "type": "integer" }, "end_date": { "kind": "date", "from": "2021-01-01", "to": "2025-12-31" }, "promotion_name": { "kind": "title", "min": 2, "max": 3, "pool": [ "happy", "hour", "summer", "winter", "pasta", "pizza", "night", "week", "brunch", "family", "lunch", "special", "festival", "tasting", "menu", "weekend" ] }, "start_date": { "kind": "date", "from": "2021-01-01", "to": "2025-12-31" } } }, "reservations": { "description": "Rows for the reservations table.", "rows": 60, "columns": { "reservation_id": { "kind": "pk" }, "customer_id": { "kind": "fk", "ref": "customers.customer_id" }, "number_of_people": { "kind": "enum", "values": [ "2", "4", "3", "1" ], "weights": [ 52, 24, 14, 10 ], "type": "integer" }, "reservation_date": { "kind": "datetime", "from": "2021-01-01", "to": "2025-12-31", "dayProfile": "meals" }, "table_number": { "kind": "fk", "ref": "restaurant_tables.table_number" } } }, "restaurant_tables": { "description": "Rows for the restaurant_tables table.", "rows": 16, "columns": { "table_number": { "kind": "pk" }, "table_capacity": { "kind": "int", "min": 4, "max": 12 } } }, "shift_assignments": { "description": "Rows for the shift_assignments table.", "rows": 50, "columns": { "id": { "kind": "pk" }, "delivery_boy_id": { "kind": "fk", "ref": "delivery_boys.delivery_boy_id", "skew": "flat" }, "shift_id": { "kind": "fk", "ref": "delivery_shifts.shift_id", "skew": "flat" } } }, "special_offers": { "description": "Rows for the special_offers table.", "rows": 6, "columns": { "offer_id": { "kind": "pk" }, "description": { "kind": "enum", "values": [ "Off a first order", "Off dine-in orders", "Off every order", "Off lunch orders", "Off one order in your birthday month", "Off the bill" ] }, "discount_percentage": { "kind": "int", "min": 10, "max": 20 }, "eligibility_criteria": { "kind": "enum", "values": [ "New customers", "Birthday month", "Premium members", "Weekdays 11:00 to 15:00", "Parties of four or more", "Valid student ID" ] }, "offer_name": { "kind": "enum", "values": [ "Welcome Offer", "Birthday Treat", "Loyalty Reward", "Lunch Deal", "Family Night", "Student Discount" ], "unique": true } } }, "staff": { "description": "Rows for the staff table.", "rows": 45, "columns": { "staff_id": { "kind": "pk" }, "name": { "kind": "person.fullName" }, "phone": { "kind": "phone.number" }, "position": { "kind": "enum", "values": [ "server", "line_cook", "chef", "host", "bartender", "dishwasher", "manager" ], "weights": [ 34, 22, 6, 10, 10, 13, 5 ] } } }, "staff_shift_assignments": { "description": "Rows for the staff_shift_assignments table.", "rows": 80, "columns": { "id": { "kind": "pk" }, "staff_id": { "kind": "fk", "ref": "staff.staff_id", "skew": "flat" }, "staff_shift_id": { "kind": "fk", "ref": "staff_shifts.staff_shift_id", 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} ] } }, "rules": [ { "name": "An order line is priced at the menu price", "sql": "SELECT count(*) AS violations FROM order_items oi JOIN food_and_beverage_catalog f ON f.item_id = oi.item_id WHERE oi.price <> f.price" }, { "name": "Every order has at least one line", "sql": "SELECT count(*) AS violations FROM orders o LEFT JOIN (SELECT DISTINCT order_id FROM order_items) x ON x.order_id = o.order_id WHERE x.order_id IS NULL" }, { "name": "An order totals its lines", "sql": "SELECT count(*) AS violations FROM orders o LEFT JOIN (SELECT order_id, sum(quantity * price) AS lines FROM order_items GROUP BY order_id) x ON x.order_id = o.order_id WHERE o.total_amount <> COALESCE(x.lines, 0)" }, { "name": "Every order is paid once, in full, within ninety minutes", "sql": "SELECT (SELECT count(*) FROM orders o LEFT JOIN payments p ON p.order_id = o.order_id WHERE p.payment_id IS NULL) + (SELECT count(*) FROM payments p JOIN orders o ON o.order_id = p.order_id WHERE p.amount <> o.total_amount OR p.payment_date < o.order_date OR p.payment_date > o.order_date + interval '90 minutes') AS violations" }, { "name": "Feedback comes from the customer who ordered, after the order", "sql": "SELECT count(*) AS violations FROM feedback f JOIN orders o ON o.order_id = f.order_id WHERE f.customer_id <> o.customer_id OR f.feedback_date < o.order_date" }, { "name": "A dish sits in a subcategory of its own category", "sql": "SELECT count(*) AS violations FROM food_and_beverage_catalog f JOIN food_subcategory s ON s.subcategory_id = f.subcategory_id WHERE s.category_id <> f.category_id" }, { "name": "A booked party fits its table", "sql": "SELECT count(*) AS violations FROM reservations r JOIN restaurant_tables t ON t.table_number = r.table_number WHERE r.number_of_people > t.table_capacity" }, { "name": "One attendance row per person per day, and no pairing listed twice", "sql": "SELECT (SELECT count(*) - count(DISTINCT (staff_id, date)) FROM attendance) + (SELECT count(*) - count(DISTINCT (customer_id, offer_id)) FROM customer_offers) + (SELECT count(*) - count(DISTINCT (promotion_id, item_id)) FROM promotion_items) + (SELECT count(*) - count(DISTINCT (delivery_boy_id, area_code)) FROM delivery_assignments) + (SELECT count(*) - count(DISTINCT (delivery_boy_id, shift_id)) FROM shift_assignments) + (SELECT count(*) - count(DISTINCT (staff_id, staff_shift_id)) FROM staff_shift_assignments) AS violations" }, { "name": "Shifts end after they start, and promotions run at least a week", "sql": "SELECT (SELECT count(*) FROM delivery_shifts WHERE shift_end_time <= shift_start_time) + (SELECT count(*) FROM staff_shifts WHERE shift_end_time <= shift_start_time) + (SELECT count(*) FROM promotions WHERE end_date < start_date + 7) AS violations" } ] }, "publishedAt": 1791357066493, "updatedAt": 1791357066493 }