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Interview Prep

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Paste any job posting and get custom SQL challenges tailored to that role. AI-powered prep with company-specific questions, detailed solutions, and optimization tips.

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SQL Editor
Databases
ecommerce6
employees4
finance5
Tables
customers
orders
order_items
products
categories
reviews
1SELECT p.name, SUM(oi.quantity) AS total_sold
2FROM order_items oi
3JOIN products p ON oi.product_id = p.id
4GROUP BY p.name
5ORDER BY total_sold DESC LIMIT 5;
ecommerce database
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Revenue Analysis
IntermediateE-commerce
User Retention
AdvancedSaaS
Funnel Optimization
IntermediateMarketing
Intermediate45 min

Revenue Analysis

Analyze monthly revenue trends, identify top products, and calculate growth rates across product categories.

Challenges (3)
1
Monthly Revenue Trends
Hint: Use DATE_TRUNC and GROUP BY
2
Top Products by Revenue
3
Category Growth Rate

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