Struct RpcParam 

pub struct RpcParam {
    pub name: String,
    pub flags: ParamFlags,
    pub type_info: TypeInfo,
    pub value: Option<Bytes>,
}

An RPC parameter.

Fields

name: String

Parameter name (can be empty for positional params).

flags: ParamFlags

Status flags.

type_info: TypeInfo

Type information.

value: Option<Bytes>

Parameter value (raw bytes).

Implementations

impl RpcParam

pub fn new(name: impl Into<String>, type_info: TypeInfo, value: Bytes) -> Self

Create a new parameter with a value.

pub fn null(name: impl Into<String>, type_info: TypeInfo) -> Self

Create a NULL parameter.

pub fn int(name: impl Into<String>, value: i32) -> Self

Create an INT parameter.

pub fn bigint(name: impl Into<String>, value: i64) -> Self

Create a BIGINT parameter.

pub fn nvarchar(name: impl Into<String>, value: &str) -> Self

Create an NVARCHAR parameter.

pub fn varchar(name: impl Into<String>, value: &str) -> Self

Create a VARCHAR parameter.

Encodes the string as single-byte characters using Windows-1252 encoding (when the encoding feature is enabled) or Latin-1 fallback. Characters not representable in the target encoding are replaced with ?.

Use this instead of nvarchar when SendStringParametersAsUnicode=false to allow SQL Server to use index seeks on VARCHAR columns.

pub fn varchar_with_collation( name: impl Into<String>, value: &str, collation: &Collation, ) -> Self

Create a VARCHAR parameter using the server’s collation for encoding.

Uses the collation’s character encoding instead of the default Windows-1252. For UTF-8 collations (SQL Server 2019+), the string bytes are used directly.

pub fn as_output(self) -> Self

Mark as output parameter.

pub fn encode(&self, buf: &mut BytesMut)

Encode the parameter to buffer.

Trait Implementations

impl Clone for RpcParam

fn clone(&self) -> RpcParam

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RpcParam

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

Formats the value using the given formatter.