What are the differences between SQL Server, PostgreSQL, and MySQL?

Short answer: SQL Server: Developed by Microsoft, it's known for its strong integration with other Microsoft products.

Explain a bit more

It’s commonly used in enterprise environments. PostgreSQL: An open-source, object-relational database known for its standards compliance, extensibility, and advanced features like support for complex queries, JSONB, and custom data types. MySQL: An open-source relational database known for its speed and ease of use. It's often used in web applications (e.g., with PHP) and is less feature-rich than PostgreSQL but highly reliable.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.