Struct BlobParam

pub struct BlobParam<'a> { /* private fields */ }

Parameter type which can be used to bind a self::Blob as parameter to a statement in order for its contents to be streamed to the database at statement execution time.

Implementations

impl<'a> BlobParam<'a>

pub fn new(blob: &'a mut impl Blob) -> Self

Trait Implementations

impl DelayedInput for BlobParam<'_>

fn cdata_type(&self) -> CDataType

Then streaming data to the “data source” the driver converts the data from this type.

fn indicator_ptr(&self) -> *const isize

Either odbc_sys::DATA_AT_EXEC in case of streaming from a stream of unknown length (e.g. stdin) or the result of odbc_sys::len_data_at_exec if the length of the stream is known in advance (e.g. a File).

fn stream_ptr(&mut self) -> *mut c_void

Pointer to reference of crate::parameter::Blob the stream or an application defined value identifying the stream.

impl HasDataType for BlobParam<'_>

fn data_type(&self) -> DataType

The SQL data as which the parameter is bound to ODBC.

impl ParameterCollection for BlobParam<'_>

fn parameter_set_size(&self) -> usize

Number of values per parameter in the collection. This can be different from the maximum batch size a buffer may be able to hold. Returning 0 will cause the the query not to be executed.

unsafe fn bind_parameters_to( &mut self, stmt: &mut impl Statement, ) -> Result<(), Error>

Bind the parameters to a statement

impl ParameterTupleElement for &mut BlobParam<'_>

unsafe fn bind_to( &mut self, parameter_number: u16, stmt: &mut impl Statement, ) -> Result<(), Error>

Bind the parameter in question to a specific parameter_number.