Diesel quiz

Test your Diesel knowledge with a free interactive quiz — 20 questions with answers and explanations. No signup needed to play.

What does the `#[derive(Queryable)]` attribute do on a Rust struct?

1. What does the `#[derive(Queryable)]` attribute do on a Rust struct?
2. What does the `table!` macro (or the modern `#[derive(Queryable)]` + schema.rs approach) provide in Diesel?
3. How does Diesel typically handle database transactions?
4. What is a common reason a Diesel project pairs the ORM with a separate async runtime like Tokio in a web server context?
5. What is the role of `schema.rs`, typically generated by `diesel print-schema`?
6. Why might a team choose Diesel over writing raw SQL with a lower-level database driver crate?
7. When would a Diesel user reach for `sql_query` or `diesel::sql_types` raw SQL escape hatches?
8. What does it mean that Diesel is "compile-time safe"?
9. What does `#[derive(AsChangeset)]` enable in Diesel?
10. What is Diesel?
11. In a Diesel schema, what does the `joinable!` macro (or its modern equivalent, inferred from foreign keys) declare?
12. Historically, why did Diesel not support `async`/`await` natively for a long time, unlike newer Rust database crates like `sqlx`?

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