Multi Restaurant Food Delivery Analytics and Engineering Capstone Project with SQL
Group Category: Capstone Project
|Product Category: Database Design & Development
|Sub Category: PostgreSQL
About this Product
Master real-world SQL by analyzing restaurant performance, delivery efficiency, and customer behavior using production-grade datasets.
Business Overview:
This SQL Capstone simulates a real food delivery platform like Swiggy or Uber Eats. Learners work with a live-style transactional database covering customers, restaurants, menu items, orders, deliveries, reviews, payments, and refunds. The project is focused entirely on SQL—not dashboards or third-party tools—ensuring mastery of actual industry use cases such as order analytics, operational performance, cancellations, customer insights, transactions, and database optimization.
Product Highlights:
- Real multi-table database with 18 interconnected entities
- Covers SQL essentials to advanced topics: data validation, analytics, performance tuning, indexing, transactions, and security
- Includes stored procedures, triggers, CTE-based analytics, and role-based access control
- Designed like a real company assignment or technical interview case study
- Ideal for SQL Analysts, Data Engineers, and Backend Developers building portfolio-ready skills
Learning Outcomes:
By completing this capstone, you will be able to:
- Understand and manage a complete SQL database lifecycle, from data validation to optimization
- Write business-grade SQL queries using joins, aggregations, CTEs, window functions, and subqueries
- Implement transactions, rollbacks, triggers, and stored procedures for reliability and automation
- Perform operational analysis like delivery efficiency, restaurant performance, customer retention, order cancellations, and refund tracking
- Apply role-based security principles to grant controlled access & protect production data
Resources
Description:
- Contains details of every customer who uses the platform.
- Includes first name, last name, email, phone number, and account status.
- Used to identify and contact customers.
- Helps in tracking customer activity, orders, and preferences.
Description:
- Stores information about each shopping cart created by a customer.
- A cart holds items before an order is placed.
- Includes customer ID, creation time, and status (active or not).
- Helps track what customers add to their cart and whether they complete the purchase.
Description:
- This file lists all types of cuisines (like Italian, Indian, Chinese, etc.) available on the platform.
- Each cuisine has a name, description, and a unique ID.
- Helps group restaurants and menu items by cuisine type.
- Used to filter restaurants or suggest food options to customers.
Description:
- Lists all delivery partners who deliver food orders.
- Has their names, contact details, ratings, and whether they are active or not.
- Used to assign deliveries and track performance.
- Helps in managing and improving delivery operations.
Description:
- Contains details of all restaurants listed on the platform.
- Includes restaurant name, address, phone number, status, and rating.
- Used to show restaurant information to customers.
- Helps track restaurant activity, performance, and availability.
Description:
- Stores all customer delivery addresses.
- Includes street, city, state, postal code, and country.
- Shows which address a customer used for an order.
- Helps with delivery management and address-based analysis.
Description:
- Lists all food items that restaurants offer.
- Includes item name, description, price, and if it’s available or not.
- Also shows if it’s vegetarian or non-vegetarian and how long it takes to prepare.
- Helps display restaurant menus and track which dishes sell best.
Description:
- Contains details of every food order placed on the platform.
- Includes customer ID, restaurant ID, total price, order status, and payment info.
- Tracks when an order was placed, completed, or cancelled.
- Used to measure sales, customer activity, and overall platform performance.
Description:
- Stores details of all payments made for orders.
- Includes payment amount, method (like card or wallet), and payment status.
- Used to confirm successful transactions and manage refunds.
- Helps with financial tracking and payment analysis.
Description:
- Contains customer reviews for food items.
- Includes the rating (1–5), written feedback, and which menu item it’s for.
- Helps understand what customers like or dislike.
- Used to improve menu items and customer satisfaction.
Description:
- Lists the food items added to each cart.
- Includes item name, quantity, and when it was added.
- Connects to both the cart and the menu item tables.
- Helps analyze what customers add to carts and how many items they buy.
Description:
- Stores information about the delivery process for each order.
- Includes delivery partner ID, delivery time, and delivery status.
- Helps track the time it takes to deliver food and whether deliveries are successful.
- Useful for improving delivery speed and service quality.
Description:
- Lists all the food items included in each order.
- Includes item name, price, quantity, and order reference.
- Helps see what items are selling the most.
- Used for sales tracking, revenue reports, and popular item analysis.
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