SQL Quest › SQL Interview Questions › Conditional Logic
Order Funnel Conversion
Build an order status funnel. Show the total count of orders at each stage: total_orders, confirmed (status = 'Confirmed' or 'Shipped' or 'Delivered'), shipped (status = 'Shipped' or 'Delivered'), and delivered (status = 'Delivered'). Also show confirm_rate, ship_rate, and deliver_rate as percentages of total, rounded to 1 decimal. This funnel analysis pattern is the bread and butter of product analytics at every FAANG company.
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Schema
orders
| order_id | customer_id | product | category | quantity | price | total | order_date | country | status |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Laptop Pro | Electronics | 1 | 1299.99 | 1299.99 | 2024-01-15 | USA | completed |
| 2 | 2 | Wireless Mouse | Electronics | 2 | 49.99 | 99.98 | 2024-01-16 | Canada | completed |
| 3 | 3 | Office Chair | Furniture | 1 | 349.99 | 349.99 | 2024-01-17 | USA | completed |
Expected output: confirm_rate: 80.0, ship_rate: 60.0, deliver_rate: 45.0
Hint
Concepts
SELECT CASE Aggregation Conditional Aggregation
Practise the topic: SQL practice questions · CASE WHEN practice · GROUP BY exercises · Advanced SQL interview questions
In these company practice sets
Airbnb · Amazon · Ramp · Revolut · Shopify · Snowflake · Stripe · TikTok · Microsoft
A SQL Quest challenge matched to patterns reported for these companies — not a question any of them has published.
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