What are the differences between Django QuerySets and raw database queries?

What are the differences between Django QuerySets and raw database queries?

Django QuerySets provide a high-level abstraction for database queries, allowing for easier data manipulation and retrieval. In contrast, raw database queries are executed directly against the database, offering more control but requiring more complex SQL syntax.

Can you give me an example of when to use QuerySets instead of raw queries?

Sure! Use QuerySets when you need to filter or sort data easily, like retrieving all users with a specific attribute. Raw queries are better for complex operations or when performance is critical.

Are there any performance differences between the two?

Yes, QuerySets can be less efficient for very complex queries since they generate SQL behind the scenes. Raw queries can be optimized for performance but require more effort to write and maintain.

What about security? Are there any risks with raw queries?

Absolutely! Raw queries can be vulnerable to SQL injection if not handled properly. Using QuerySets helps mitigate this risk by automatically escaping inputs.