Struct libsql::statement::Statement

pub struct Statement { /* private fields */ }

A prepared statement.

Implementations

impl Statement

pub fn query_map<F, T>(&self, params: &Params, f: F) -> Result<MappedRows<F>>where F: FnMut(Row) -> Result<T>,

pub fn query(&self, params: &Params) -> Result<Rows>

pub fn query_row(&self, params: &Params) -> Result<Row>

pub fn bind(&self, params: &Params)

pub fn parameter_count(&self) -> usize

pub fn parameter_name(&self, index: i32) -> Option<&str>

pub fn is_explain(&self) -> i32

pub fn readonly(&self) -> bool

pub fn execute(&self, params: &Params) -> Result<u64>

pub fn reset(&self)

Reset the prepared statement to initial state for reuse.

pub fn bind_value(&self, i: i32, param: ValueRef<'_>)

pub fn get_status(&self, status: i32) -> i32

pub fn value_ref(inner: &Statement, col: usize) -> ValueRef<'_>

impl Statement

pub fn column_names(&self) -> Vec<&str>

Get all the column names in the result set of the prepared statement.

If associated DB schema can be altered concurrently, you should make sure that current statement has already been stepped once before calling this method.

pub fn column_count(&self) -> usize

Return the number of columns in the result set returned by the prepared statement.

If associated DB schema can be altered concurrently, you should make sure that current statement has already been stepped once before calling this method.

pub fn column_name(&self, col: usize) -> Option<&str>

Returns the name assigned to a particular column in the result set returned by the prepared statement.

If associated DB schema can be altered concurrently, you should make sure that current statement has already been stepped once before calling this method.

Returns None if there is no column at the provided index.

pub fn column_origin_name(&self, col: usize) -> Option<&str>

pub fn column_table_name(&self, col: usize) -> Option<&str>

pub fn column_database_name(&self, col: usize) -> Option<&str>

pub fn column_decltype(&self, col: usize) -> Option<&str>

pub fn column_index(&self, name: &str) -> Result<usize>

Returns the column index in the result set for a given column name.

If there is no AS clause then the name of the column is unspecified and may change from one release of SQLite to the next.

If associated DB schema can be altered concurrently, you should make sure that current statement has already been stepped once before calling this method.

Failure

Will return an Error::InvalidColumnName when there is no column with the specified name.

pub fn columns(&self) -> Vec<Column<'_>>

Returns a slice describing the columns of the result of the query.

If associated DB schema can be altered concurrently, you should make sure that current statement has already been stepped once before calling this method.

Trait Implementations

impl AsRef<Statement> for Row

fn as_ref(&self) -> &Statement

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<Statement> for Rows

fn as_ref(&self) -> &Statement

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for Statement

fn clone(&self) -> Statement

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Statement

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.