The package provides an interface to SQLite.
Open a connection, create a table, and insert a couple of rows:
let connection = sqlite::open(":memory:").unwrap();
connection.execute("
CREATE TABLE users (name TEXT, age INTEGER);
INSERT INTO users (name, age) VALUES ('Alice', 42);
INSERT INTO users (name, age) VALUES ('Bob', 69);
").unwrap();
Select a row from the table:
connection.iterate("SELECT * FROM users WHERE age > 50", |pairs| {
for &(column, value) in pairs.iter() {
println!("{} = {}", column, value.unwrap());
}
true
}).unwrap();
The same query using a prepared statement:
use sqlite::State;
let mut statement = connection.prepare("
SELECT * FROM users WHERE age > ?
").unwrap();
statement.bind(1, 50).unwrap();
while let State::Row = statement.next().unwrap() {
println!("name = {}", statement.read::<String>(0).unwrap());
println!("age = {}", statement.read::<i64>(1).unwrap());
}
The same query using a cursor, which is a wrapper around a prepared statement:
use sqlite::Value;
let mut cursor = connection.prepare("
SELECT * FROM users WHERE age > ?
").unwrap().cursor();
cursor.bind(&[Value::Integer(50)]).unwrap();
while let Some(row) = cursor.next().unwrap() {
println!("name = {}", row[0].as_string().unwrap());
println!("age = {}", row[1].as_integer().unwrap());
}
Your contribution is highly appreciated. Do not hesitate to open an issue or a pull request. Note that any contribution submitted for inclusion in the project will be licensed according to the terms given in LICENSE.md.