[−][src]Trait mysql_async::prelude::Queryable
Represents something queryable like connection or transaction.
Provided methods
fn ping(self) -> BoxFuture<Self>
Returns future that resolves to Conn
if COM_PING
executed successfully.
fn disconnect(self) -> BoxFuture<()>
Returns future that disconnects this connection from a server.
fn query<Q: AsRef<str>>(
self,
query: Q
) -> BoxFuture<QueryResult<Self, TextProtocol>>
self,
query: Q
) -> BoxFuture<QueryResult<Self, TextProtocol>>
Returns future that performs query
.
fn first<Q, R>(self, query: Q) -> BoxFuture<(Self, Option<R>)> where
Q: AsRef<str>,
R: FromRow,
Q: AsRef<str>,
R: FromRow,
Returns future that resolves to a first row of result of a query
execution (if any).
Returned future will call R::from_row(row)
internally.
fn drop_query<Q: AsRef<str>>(self, query: Q) -> BoxFuture<Self>
Returns future that performs query. Result will be dropped.
fn prepare<Q: AsRef<str>>(self, query: Q) -> BoxFuture<Stmt<Self>>
Returns future that prepares statement.
fn prep_exec<Q, P>(
self,
query: Q,
params: P
) -> BoxFuture<QueryResult<Self, BinaryProtocol>> where
Q: AsRef<str>,
P: Into<Params>,
self,
query: Q,
params: P
) -> BoxFuture<QueryResult<Self, BinaryProtocol>> where
Q: AsRef<str>,
P: Into<Params>,
Returns future that prepares and executes statement in one pass.
fn first_exec<Q, P, R>(
self,
query: Q,
params: P
) -> BoxFuture<(Self, Option<R>)> where
Q: AsRef<str>,
P: Into<Params>,
R: FromRow,
self,
query: Q,
params: P
) -> BoxFuture<(Self, Option<R>)> where
Q: AsRef<str>,
P: Into<Params>,
R: FromRow,
Returns future that resolves to a first row of result of a statement execution (if any).
Returned future will call R::from_row(row)
internally.
fn drop_exec<Q, P>(self, query: Q, params: P) -> BoxFuture<Self> where
Q: AsRef<str>,
P: Into<Params>,
Q: AsRef<str>,
P: Into<Params>,
Returns future that prepares and executes statement. Result will be dropped.
fn batch_exec<Q, I, P>(self, query: Q, params_iter: I) -> BoxFuture<Self> where
Q: AsRef<str>,
I: IntoIterator<Item = P> + Send + 'static,
I::IntoIter: Send + 'static,
Params: From<P>,
P: Send + 'static,
Q: AsRef<str>,
I: IntoIterator<Item = P> + Send + 'static,
I::IntoIter: Send + 'static,
Params: From<P>,
P: Send + 'static,
Returns future that prepares statement and performs batch execution. Results will be dropped.
fn start_transaction(
self,
options: TransactionOptions
) -> BoxFuture<Transaction<Self>>
self,
options: TransactionOptions
) -> BoxFuture<Transaction<Self>>
Returns future that starts transaction.