Struct Null

pub struct Null;

Empty struct that can be used to fill in a query parameter as NULL.

Example

fn insert_null(conn: &Connection) -> Result<usize> {
    conn.execute("INSERT INTO people (name) VALUES (?1)", [Null])
}

Trait Implementations

impl Clone for Null

fn clone(&self) -> Null

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl From<Null> for ToSqlOutput<'_>

fn from(t: Null) -> Self

Converts to this type from the input type.

impl From<Null> for Value

fn from(_: Null) -> Value

Converts to this type from the input type.

impl ToSql for Null

fn to_sql(&self) -> Result<ToSqlOutput<'_>>

Converts Rust value to SQLite value

impl Copy for Null