Database

How to Connect to MySQL from Rust Connect to MySQL from Rust by adding the sqlx crate with the mysql feature and initializing a connection pool. How to connect to PostgreSQL from Rust Connect to PostgreSQL from Rust by adding the tokio-postgres dependency and calling Client::connect with your database URL. How to Connect to PostgreSQL from Rust (sqlx, diesel) Connect to PostgreSQL in Rust using sqlx or diesel by adding dependencies and initializing a connection pool with your database URL. How to connect to Redis You connect to Redis in Rust using the `redis` crate, which provides a high-level client that handles connection pooling, serialization, and command execution out of the box. How to Connect to SQLite from Rust Connect to SQLite in Rust by adding the diesel crate with sqlite and bundled features to Cargo.toml and initializing a SqliteConnection. How to do raw SQL queries Execute raw SQL in Rust using the `sql_query` function from the Diesel crate to run custom database commands safely. How to handle database errors in Rust Handle database errors in Rust by returning Result types and using the ? operator to propagate failures gracefully. How to Handle Database Transactions in Rust Use a transaction manager trait from your specific database driver (like `sqlx`, `diesel`, or `tokio-postgres`) to wrap database operations in a single atomic block, ensuring that either all changes commit or none do if an error occurs. How to Handle NULL Values from Databases in Rust Use the Option<T> enum and pattern matching to safely handle missing values instead of NULL in Rust. How to implement database pagination Implement database pagination in Axum by defining a Deserialize struct and using the Query extractor to parse page and limit parameters. How to Map Database Rows to Rust Structs Use serde or sqlx to automatically map database rows to Rust structs for type-safe data handling. How to run database migrations Run database migrations by executing the migration command provided by your specific migration tool, which applies pending schema changes in order to your database. How to Run Database Migrations in Rust Rust requires external tools like Diesel or SQLx to run database migrations via their specific CLI commands. How to test database code in Rust Test Rust database code by adding #[test] functions and running cargo test. How to Use an ORM in Rust (Diesel vs SeaORM) Use Diesel for compile-time safety or SeaORM for runtime flexibility to interact with databases in Rust. How to use connection pooling Use the r2d2 crate with Diesel to create a Pool that manages reusable database connections for better performance. How to Use Connection Pooling in Rust Use the `diesel::r2d2::Pool` struct to manage a fixed number of database connections that are reused across requests. Add the `r2d2` feature to your `diesel` dependency, define a `Connection` type alias, and instantiate the pool with your database URL and a maximum size limit. How to Use Connection Pools in Rust (deadpool, bb8) Initialize a deadpool-diesel Pool with a Manager and Runtime, then fetch connections via pool.get().await. How to Use Database Enums in Rust Define an `enum` to group related variants and use `match` to handle each case safely. This pattern ensures your code handles every possible state without runtime errors. How to use Diesel ORM Install Diesel via Cargo, define your schema, and use the CLI to generate safe database queries for your Rust application. How to Use Embedded Databases (sled, redb) in Rust Add sled or redb to Cargo.toml and initialize a database instance with Db::open or Database::create to start storing data locally. How to use MongoDB with Rust Connect Rust to MongoDB using the mongodb crate with bson-3 support and serde for data serialization. How to Use PostgreSQL with Rust: Complete Guide Connect to PostgreSQL in Rust using the native postgres crate and execute queries with a Client instance. How to Use Prepared Statements in Rust Use external Rust libraries like sqlx or diesel to execute parameterized queries that prevent SQL injection. How to Use Redis with Rust Connect to Redis in Rust using the redis crate with tokio for async operations to store and retrieve key-value pairs. How to use Sea-ORM Sea-ORM is an async Rust ORM that uses a code-first approach where you define your database schema in Rust structs, then generate migration files and query builders automatically. How to use SQLite with Rust Embed SQLite in Rust by adding the diesel crate with sqlite and libsqlite3-sys/bundled features to Cargo.toml. How to Use SQLite with Rust: Complete Guide Embed SQLite in Rust by enabling the sqlite and libsqlite3-sys/bundled features in the diesel crate. How to use SQLx in Rust Add SQLx with runtime features, create a connection pool, and run async queries to interact with your database in Rust. How to use transactions Use axum-sqlx-tx to automatically commit or rollback SQLx transactions based on handler success. How to Write Raw SQL Queries in Rust Execute raw SQL in Rust using the sqlx crate's query method with parameter binding. Overview of Database Libraries in Rust: sqlx vs Diesel vs SeaORM Choose **sqlx** for maximum performance and compile-time safety without macros, **Diesel** for a mature, feature-rich ecosystem with a powerful query builder, or **SeaORM** for a modern, async-first ORM that balances ease of use with type safety.