Crate rusqlite

Rusqlite is an ergonomic wrapper for using SQLite from Rust.

Historically, the API was based on the one from rust-postgres. However, the two have diverged in many ways, and no compatibility between the two is intended.

use rusqlite::{params, Connection, Result};

#[derive(Debug)]
struct Person {
    id: i32,
    name: String,
    data: Option<Vec<u8>>,
}

fn main() -> Result<()> {
    let conn = Connection::open_in_memory()?;

    conn.execute(
        "CREATE TABLE person (
            id   INTEGER PRIMARY KEY,
            name TEXT NOT NULL,
            data BLOB
        )",
        (), // empty list of parameters.
    )?;
    let me = Person {
        id: 0,
        name: "Steven".to_string(),
        data: None,
    };
    conn.execute(
        "INSERT INTO person (name, data) VALUES (?1, ?2)",
        (&me.name, &me.data),
    )?;

    let mut stmt = conn.prepare("SELECT id, name, data FROM person")?;
    let person_iter = stmt.query_map([], |row| {
        Ok(Person {
            id: row.get(0)?,
            name: row.get(1)?,
            data: row.get(2)?,
        })
    })?;

    for person in person_iter {
        println!("Found person {:?}", person.unwrap());
    }
    Ok(())
}

Re-exports

• pub use crate::types::ToSql;
• pub use libsqlite3_sys as ffi;

Modules

• config
  Configure database connections
• types
  Traits dealing with SQLite data types.

Macros

• named_params
  A macro making it more convenient to pass lists of named parameters as a &[(&str, &dyn ToSql)].
• params
  A macro making it more convenient to longer lists of parameters as a &[&dyn ToSql].

Structs

• AndThenRows
  An iterator over the mapped resulting rows of a query, with an Error type unifying with Error.
• Batch
  Batch iterator
• CachedStatement
  Cacheable statement.
• Column
  Information about a column of a SQLite query.
• Connection
  A connection to a SQLite database.
• InterruptHandle
  Allows interrupting a long-running computation.
• Map
  F is used to transform the streaming iterator into a fallible iterator.
• MappedRows
  An iterator over the mapped resulting rows of a query.
• OpenFlags
  Flags for opening SQLite database connections. See sqlite3_open_v2 for details.
• ParamsFromIter
  Adapter type which allows any iterator over ToSql values to implement Params.
• Row
  A single result row of a query.
• Rows
  An handle for the resulting rows of a query.
• Savepoint
  Represents a savepoint on a database connection.
• Statement
  A prepared statement.
• Transaction
  Represents a transaction on a database connection.

Enums

• DatabaseName
  Name for a database within a SQLite connection.
• DropBehavior
  Options for how a Transaction or Savepoint should behave when it is dropped.
• Error
  Enum listing possible errors from rusqlite.
• ErrorCode
  Error Codes
• StatementStatus
  Prepared statement status counters.
• TransactionBehavior
  Options for transaction behavior. See BEGIN TRANSACTION for details.

Constants

• MAIN_DB
  Shorthand for DatabaseName::Main.
• TEMP_DB
  Shorthand for DatabaseName::Temp.

Traits

• OptionalExtension
  See the method documentation.
• Params
  Trait used for sets of parameter passed into SQL statements/queries.
• RowIndex
  A trait implemented by types that can index into columns of a row.

Functions

• bypass_sqlite_initialization^⚠
  rusqlite’s check for a safe SQLite threading mode requires SQLite 3.7.0 or later. If you are running against a SQLite older than that, rusqlite attempts to ensure safety by performing configuration and initialization of SQLite itself the first time you attempt to open a connection. By default, rusqlite panics if that initialization fails, since that could mean SQLite has been initialized in single-thread mode.
• params_from_iter
  Constructor function for a ParamsFromIter. See its documentation for more.
• version
  Returns the SQLite version as a string; e.g., "3.16.2" for version 3.16.2.
• version_number
  Returns the SQLite version as an integer; e.g., 3016002 for version 3.16.2.

Type Aliases

• Result
  A typedef of the result returned by many methods.