The package provides an interface to SQLite.
Open a connection, create a table, and insert some rows:
```rust 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 some rows and process them one by one as plain text:
rust
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, which is much more efficient than the previous technique:
```rust 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::
The same query using a cursor, which is a wrapper around a prepared statement providing the concept of row and featuring all-at-once binding:
```rust 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].asstring().unwrap()); println!("age = {}", row[1].asinteger().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.