Database Schema Reading

Summary

Understanding how tables relate through primary and foreign keys, visualized in an ER diagram — enough fluency to navigate an unfamiliar database quickly when designing test scenarios.

• 1Sketch an ER diagram for a simple sample database (e.g. users, orders, products).
• 2Learn to identify primary keys and foreign keys in an unfamiliar schema.
• 3Practice reading a real application's schema documentation to plan test queries.