Struct sqlx::query::Query [−][src]
#[must_use = "query must be executed to affect database"]pub struct Query<'q, DB, A> where
DB: Database, { /* fields omitted */ }
Expand description
Raw SQL query with bind parameters. Returned by query
.
Implementations
impl<'q, DB> Query<'q, DB, <DB as HasArguments<'q>>::Arguments> where
DB: Database,
[src]
impl<'q, DB> Query<'q, DB, <DB as HasArguments<'q>>::Arguments> where
DB: Database,
[src]pub fn bind<T>(
self,
value: T
) -> Query<'q, DB, <DB as HasArguments<'q>>::Arguments> where
T: 'q + Send + Encode<'q, DB> + Type<DB>,
[src]
pub fn bind<T>(
self,
value: T
) -> Query<'q, DB, <DB as HasArguments<'q>>::Arguments> where
T: 'q + Send + Encode<'q, DB> + Type<DB>,
[src]Bind a value for use with this SQL query.
If the number of times this is called does not match the number of bind parameters that
appear in the query (?
for most SQL flavors, $1 .. $N
for Postgres) then an error
will be returned when this query is executed.
There is no validation that the value is of the type expected by the query. Most SQL flavors will perform type coercion (Postgres will return a database error).
impl<'q, DB, A> Query<'q, DB, A> where
DB: Database + HasStatementCache,
[src]
impl<'q, DB, A> Query<'q, DB, A> where
DB: Database + HasStatementCache,
[src]pub fn persistent(self, value: bool) -> Query<'q, DB, A>
[src]
pub fn persistent(self, value: bool) -> Query<'q, DB, A>
[src]If true
, the statement will get prepared once and cached to the
connection’s statement cache.
If queried once with the flag set to true
, all subsequent queries
matching the one with the flag will use the cached statement until the
cache is cleared.
Default: true
.
impl<'q, DB, A> Query<'q, DB, A> where
A: Send + 'q + IntoArguments<'q, DB>,
DB: Database,
[src]
impl<'q, DB, A> Query<'q, DB, A> where
A: Send + 'q + IntoArguments<'q, DB>,
DB: Database,
[src]pub fn map<F, O>(
self,
f: F
) -> Map<'q, DB, impl FnMut(<DB as Database>::Row) + Send, A> where
O: Unpin,
F: FnMut(<DB as Database>::Row) -> O + Send,
[src]
pub fn map<F, O>(
self,
f: F
) -> Map<'q, DB, impl FnMut(<DB as Database>::Row) + Send, A> where
O: Unpin,
F: FnMut(<DB as Database>::Row) -> O + Send,
[src]pub fn try_map<F, O>(self, f: F) -> Map<'q, DB, F, A> where
O: Unpin,
F: FnMut(<DB as Database>::Row) -> Result<O, Error> + Send,
[src]
pub fn try_map<F, O>(self, f: F) -> Map<'q, DB, F, A> where
O: Unpin,
F: FnMut(<DB as Database>::Row) -> Result<O, Error> + Send,
[src]pub async fn execute<'e, 'c, E>(
self,
executor: E
) -> Result<<DB as Database>::QueryResult, Error> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]
pub async fn execute<'e, 'c, E>(
self,
executor: E
) -> Result<<DB as Database>::QueryResult, Error> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]Execute the query and return the total number of rows affected.
pub async fn execute_many<'e, 'c, E>(
self,
executor: E
) -> Pin<Box<dyn Stream<Item = Result<<DB as Database>::QueryResult, Error>> + 'e + Send, Global>> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]
pub async fn execute_many<'e, 'c, E>(
self,
executor: E
) -> Pin<Box<dyn Stream<Item = Result<<DB as Database>::QueryResult, Error>> + 'e + Send, Global>> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]Execute multiple queries and return the rows affected from each query, in a stream.
pub fn fetch<'e, 'c, E>(
self,
executor: E
) -> Pin<Box<dyn Stream<Item = Result<<DB as Database>::Row, Error>> + 'e + Send, Global>> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]
pub fn fetch<'e, 'c, E>(
self,
executor: E
) -> Pin<Box<dyn Stream<Item = Result<<DB as Database>::Row, Error>> + 'e + Send, Global>> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]Execute the query and return the generated results as a stream.
pub fn fetch_many<'e, 'c, E>(
self,
executor: E
) -> Pin<Box<dyn Stream<Item = Result<Either<<DB as Database>::QueryResult, <DB as Database>::Row>, Error>> + 'e + Send, Global>> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]
pub fn fetch_many<'e, 'c, E>(
self,
executor: E
) -> Pin<Box<dyn Stream<Item = Result<Either<<DB as Database>::QueryResult, <DB as Database>::Row>, Error>> + 'e + Send, Global>> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]Execute multiple queries and return the generated results as a stream from each query, in a stream.
pub async fn fetch_all<'e, 'c, E>(
self,
executor: E
) -> Result<Vec<<DB as Database>::Row, Global>, Error> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]
pub async fn fetch_all<'e, 'c, E>(
self,
executor: E
) -> Result<Vec<<DB as Database>::Row, Global>, Error> where
'c: 'e,
'q: 'e,
A: 'e,
E: Executor<'c, Database = DB>,
[src]Execute the query and return all the generated results, collected into a Vec
.
Trait Implementations
impl<'q, DB, A> Execute<'q, DB> for Query<'q, DB, A> where
A: Send + IntoArguments<'q, DB>,
DB: Database,
[src]
impl<'q, DB, A> Execute<'q, DB> for Query<'q, DB, A> where
A: Send + IntoArguments<'q, DB>,
DB: Database,
[src]pub fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement>
[src]
pub fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement>
[src]Gets the previously cached statement, if available.
pub fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments>
[src]
pub fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments>
[src]Returns the arguments to be bound against the query string. Read more
pub fn persistent(&self) -> bool
[src]
pub fn persistent(&self) -> bool
[src]Returns true
if the statement should be cached.
Auto Trait Implementations
impl<'q, DB, A> RefUnwindSafe for Query<'q, DB, A> where
A: RefUnwindSafe,
DB: RefUnwindSafe,
<DB as HasStatement<'q>>::Statement: RefUnwindSafe,
A: RefUnwindSafe,
DB: RefUnwindSafe,
<DB as HasStatement<'q>>::Statement: RefUnwindSafe,
impl<'q, DB, A> Send for Query<'q, DB, A> where
A: Send,
A: Send,
impl<'q, DB, A> Sync for Query<'q, DB, A> where
A: Sync,
DB: Sync,
A: Sync,
DB: Sync,
impl<'q, DB, A> Unpin for Query<'q, DB, A> where
A: Unpin,
DB: Unpin,
A: Unpin,
DB: Unpin,
impl<'q, DB, A> UnwindSafe for Query<'q, DB, A> where
A: UnwindSafe,
DB: UnwindSafe,
<DB as HasStatement<'q>>::Statement: RefUnwindSafe,
A: UnwindSafe,
DB: UnwindSafe,
<DB as HasStatement<'q>>::Statement: RefUnwindSafe,
Blanket Implementations
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T: ?Sized,
[src]
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T: ?Sized,
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[src]
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Self: Deref,
F: FnOnce(&Self::Target) -> R,
fn tap_deref<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
Immutably dereferences self
for inspection.
fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
Calls tap_deref
in debug builds, and does nothing in release builds.
fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
Mutably dereferences self
for modification.
fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
Calls tap_deref_mut
in debug builds, and does nothing in release
builds. Read more
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,