Struct TypeInfo 

pub struct TypeInfo {
    pub type_id: u8,
    pub max_length: Option<u16>,
    pub precision: Option<u8>,
    pub scale: Option<u8>,
    pub collation: Option<[u8; 5]>,
    pub tvp_type_name: Option<String>,
}

TDS type information for RPC parameters.

Fields

type_id: u8

Type ID.

max_length: Option<u16>

Maximum length for variable-length types.

precision: Option<u8>

Precision for numeric types.

scale: Option<u8>

Scale for numeric types.

collation: Option<[u8; 5]>

Collation for string types.

tvp_type_name: Option<String>

TVP type name (e.g., “dbo.IntIdList”) for Table-Valued Parameters.

Implementations

impl TypeInfo

pub fn int() -> Self

Create type info for INT.

pub fn bigint() -> Self

Create type info for BIGINT.

pub fn smallint() -> Self

Create type info for SMALLINT.

pub fn tinyint() -> Self

Create type info for TINYINT.

pub fn bit() -> Self

Create type info for BIT.

pub fn float() -> Self

Create type info for FLOAT.

pub fn real() -> Self

Create type info for REAL.

pub fn nvarchar(max_len: u16) -> Self

Create type info for NVARCHAR with max length.

pub fn nvarchar_max() -> Self

Create type info for NVARCHAR(MAX).

pub fn varchar(max_len: u16) -> Self

Create type info for VARCHAR with max length (in bytes).

pub fn varchar_with_collation(max_len: u16, collation: [u8; 5]) -> Self

Create type info for VARCHAR with max length and explicit collation.

pub fn varchar_max() -> Self

Create type info for VARCHAR(MAX).

pub fn varchar_max_with_collation(collation: [u8; 5]) -> Self

Create type info for VARCHAR(MAX) with explicit collation.

pub fn varbinary(max_len: u16) -> Self

Create type info for VARBINARY with max length.

pub fn varbinary_max() -> Self

Create type info for VARBINARY(MAX).

pub fn char(len: u16) -> Self

Create type info for fixed-length CHAR (BIGCHARTYPE / 0xAF), length in bytes.

pub fn nchar(len: u16) -> Self

Create type info for fixed-length NCHAR (NCHARTYPE / 0xEF), length in characters.

pub fn binary(len: u16) -> Self

Create type info for fixed-length BINARY (BIGBINARYTYPE / 0xAD), length in bytes.

pub fn uniqueidentifier() -> Self

Create type info for UNIQUEIDENTIFIER.

pub fn uuid() -> Self

Create type info for UNIQUEIDENTIFIER.

pub fn date() -> Self

Create type info for DATE.

pub fn time(scale: u8) -> Self

Create type info for TIME.

pub fn datetime2(scale: u8) -> Self

Create type info for DATETIME2.

pub fn datetimeoffset(scale: u8) -> Self

Create type info for DATETIMEOFFSET.

pub fn decimal(precision: u8, scale: u8) -> Self

Create type info for DECIMAL.

pub fn money() -> Self

Create type info for MONEY (8-byte scaled integer via MONEYN / 0x6E).

pub fn smallmoney() -> Self

Create type info for SMALLMONEY (4-byte scaled integer via MONEYN / 0x6E).

pub fn smalldatetime() -> Self

Create type info for SMALLDATETIME (4-byte days+minutes via DATETIMEN / 0x6F).

pub fn datetime() -> Self

Create type info for legacy DATETIME (8-byte days+1/300s ticks via DATETIMEN / 0x6F).

pub fn tvp(type_name: impl Into<String>) -> Self

Create type info for a Table-Valued Parameter.

Arguments

• type_name - The fully qualified table type name (e.g., “dbo.IntIdList”)

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

Encode type info to buffer.

Trait Implementations

impl Clone for TypeInfo

fn clone(&self) -> TypeInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TypeInfo

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

Formats the value using the given formatter.