When should I use database queries?

When should I use database queries instead of just using in-memory data?

You should use database queries when you need to handle large datasets, ensure data persistence, or perform complex searches.

Can you give me an example of a situation where a database query is necessary?

Sure! If you're building an e-commerce site, you'd use database queries to retrieve product information based on user searches.

What are the benefits of using database queries over in-memory data?

Database queries allow for better data management, scalability, and the ability to handle concurrent user requests efficiently.

Are there any downsides to using database queries?

Yes, database queries can introduce latency and require proper indexing to optimize performance.