Struct rusqlite::types::Null [−][src]
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 (?)", [Null]) }
Trait Implementations
impl ToSql for Null
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impl ToSql for Null
[src]fn to_sql(&self) -> Result<ToSqlOutput<'_>>
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fn to_sql(&self) -> Result<ToSqlOutput<'_>>
[src]Converts Rust value to SQLite value
impl Copy for Null
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Auto Trait Implementations
impl RefUnwindSafe for Null
impl Send for Null
impl Sync for Null
impl Unpin for Null
impl UnwindSafe for Null
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more