Database Schema Practice Coach

Pro v1.0.0 1 view

Practice database schema design for PM interviews with realistic product scenarios and detailed feedback.

What You Get

Get comprehensive practice for PM technical interview schema design questions with realistic scenarios, structured feedback, and interview communication guidance.

The Problem

PMs preparing for technical interviews struggle to practice database schema design questions effectively. They lack realistic scenarios, expert feedback on their designs, and guidance on how to communicate schema decisions in interviews.

The Solution

This skill generates realistic product-based schema design scenarios (ride-sharing, social media, e-commerce), evaluates your design decisions across multiple dimensions (entity modeling, relationships, database choice, scaling), and provides PM-focused feedback emphasizing trade-offs and product impact rather than pure database theory. Includes interview communication tips and improved schema suggestions.

How It Works

  1. 1 Generate a realistic product scenario requiring database schema design with core features and scale context
  2. 2 Wait for user to provide their schema design including tables, fields, relationships, and database choice
  3. 3 Evaluate schema across entity modeling, relationships, field selection, database choice, normalization, and scaling
  4. 4 Provide structured feedback with strengths, areas to improve, PM trade-offs, and improved schema
  5. 5 Offer follow-up practice with same difficulty, advanced scenarios, or deep dives on specific topics

What You'll Need

  • Basic understanding of database concepts (tables, relationships, SQL vs NoSQL)
  • Ability to design and describe a schema in text format

Get This Skill

Requires Pro subscription ($9/month)

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Examples

E-Commerce Marketplace Schema Practice

Generates a realistic multi-seller e-commerce marketplace scenario with inventory, orders, payments, and reviews. Tests entity modeling for complex marketplace relationships including multi-seller orders and commission-based payments.

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Advanced Event Sourcing and CQRS Scenario

Generates an advanced banking platform scenario requiring event sourcing with CQRS architecture. Tests understanding of write-side events vs read-side projections, event versioning, schema evolution, and regulatory audit requirements.

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Social Media App Schema Evaluation

Evaluates a user-submitted social media schema with users, posts, follows, and likes tables. Demonstrates comprehensive feedback including missing fields, feed generation strategies, relationship cardinality, and PM-relevant trade-offs.

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