System Design Interview
Databases
Choose the right database for the job. Compare SQL and NoSQL, and understand the trade-offs between consistency, availability, and partition tolerance.
Example: SQL Query for User Data
A simple SQL query to retrieve user information. This demonstrates the structured nature of SQL databases.
SELECT id, username, email
FROM users
WHERE signup_date > '2023-01-01';
Our AI Coach can help you practice writing complex SQL queries, discuss database schema design, and explore NoSQL alternatives for different use cases.
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