Enum odbc_api::handles::Nullability [−][src]
Indication of whether a column is nullable or not.
Variants
Indicates that we do not know wether the column is Nullable or not.
The column may hold NULL values.
The column can not hold NULL values.
Implementations
impl Nullability
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pub fn new(nullability: Nullability) -> Self
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Construct a newe instance from a Nullability
new type constant.
Trait Implementations
impl Clone for Nullability
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fn clone(&self) -> Nullability
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pub fn clone_from(&mut self, source: &Self)
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impl Debug for Nullability
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impl Default for Nullability
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impl Eq for Nullability
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impl PartialEq<Nullability> for Nullability
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fn eq(&self, other: &Nullability) -> bool
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#[must_use]pub fn ne(&self, other: &Rhs) -> bool
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impl StructuralEq for Nullability
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impl StructuralPartialEq for Nullability
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Auto Trait Implementations
impl RefUnwindSafe for Nullability
impl Send for Nullability
impl Sync for Nullability
impl Unpin for Nullability
impl UnwindSafe for Nullability
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,