What are the performance differences between ORMs and query builders?

What are the performance differences between ORMs and query builders?

ORMs (Object-Relational Mappers) abstract database interactions, while query builders provide more control over SQL queries. Generally, query builders can be faster because they allow for optimized SQL, but ORMs can speed up development time.

Can you give me an example of when to use an ORM over a query builder?

Sure! Use an ORM when you need rapid development and your application has complex data relationships. For instance, if you're building a CRUD application with a lot of entities, an ORM can simplify your code.

What about scalability? Which one scales better?

Query builders often scale better for high-performance applications because they allow for fine-tuning of SQL queries. ORMs can introduce overhead, which might affect performance as the application grows.

Are there any specific ORMs or query builders you recommend?

Yes! Popular ORMs include Entity Framework for .NET and Hibernate for Java. For query builders, consider Knex.js for Node.js or SQLAlchemy for Python.