StatementNamed

Struct StatementNamed 

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pub struct StatementNamed<'a> { /* private fields */ }
Expand description

a named statement that can be prepared separately

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impl<'a> StatementNamed<'a>

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pub fn bind<P>(self, params: P) -> StatementQuery<'a, P>

function the same as Statement::bind

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pub fn bind_dyn<'p, 't>( self, params: &'p [&'t (dyn ToSql + Sync)], ) -> StatementQuery<'a, impl ExactSizeIterator<Item = &'t (dyn ToSql + Sync)> + Clone + 'p>

function the same as Statement::bind_dyn

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pub fn bind_none(self) -> StatementQuery<'a, [bool; 0]>

function the same as Statement::bind_none

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impl<'c, C> Execute<&'c C> for StatementNamed<'_>
where C: Prepare,

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type ExecuteOutput = ResultFuture<IntoGuarded<'c, Pin<Box<dyn Future<Output = Result<Statement, Error>> + Send + 'c>>, C>>

outcome of execute. used for single time database response: number of rows affected by execution for example.
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type QueryOutput = <StatementNamed<'_> as Execute<&'c C>>::ExecuteOutput

outcome of query. used for repeated database response: database rows for example Read more
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fn execute(self, cli: &'c C) -> Self::ExecuteOutput

define how a statement is executed with single time response
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fn query(self, cli: &'c C) -> Self::QueryOutput

define how a statement is queried with repeated response
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impl<'c, 's> Execute<&'c mut PoolConnection<'_>> for StatementNamed<'s>
where 's: 'c,

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type ExecuteOutput = StatementCacheFuture<'c>

outcome of execute. used for single time database response: number of rows affected by execution for example.
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type QueryOutput = <StatementNamed<'s> as Execute<&'c mut PoolConnection<'_>>>::ExecuteOutput

outcome of query. used for repeated database response: database rows for example Read more
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fn execute(self, cli: &'c mut PoolConnection<'_>) -> Self::ExecuteOutput

define how a statement is executed with single time response
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fn query(self, cli: &'c mut PoolConnection<'_>) -> Self::QueryOutput

define how a statement is queried with repeated response
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impl<'c, C> ExecuteBlocking<&'c C> for StatementNamed<'_>
where C: Prepare,

Auto Trait Implementations§

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impl<'a> Freeze for StatementNamed<'a>

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impl<'a> RefUnwindSafe for StatementNamed<'a>

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impl<'a> Send for StatementNamed<'a>

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impl<'a> Sync for StatementNamed<'a>

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impl<'a> Unpin for StatementNamed<'a>

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impl<'a> UnwindSafe for StatementNamed<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V