Struct Numeric 

#[repr(C)]
pub struct Numeric {
    pub precision: u8,
    pub scale: i8,
    pub sign: u8,
    pub val: [u8; 16],
}

Equivalent of SQL_NUMERIC_STRUCT in the ODBC C API.

Examples

Store value in Numeric

use odbc_sys::Numeric;

/// Store 123.45 in `Numeric`
let mut num = Numeric {
    precision: 5, // 123.45 uses five digits
    scale: 2,   // two digits after the decimal point
    sign: 1,    // positive number
    val: 12345u128.to_le_bytes(), // store 12345 as little-endian bytes
};

See: https://learn.microsoft.com/en-us/sql/odbc/reference/appendixes/retrieve-numeric-data-sql-numeric-struct-kb222831

Fields

precision: u8

Number of significant digits. precision and scale are ignored then using Numeric as input.

scale: i8

Number of decimal digits to the right of the decimal point. precision and scale are ignored then using Numeric as input.

sign: u8

1 if positive, 0 if negative

val: [u8; 16]

The value of the numeric as a little-endian array of bytes. The value is stored as an unsigned integer without any decimal point. For example, the number -123.45 with precision 5 and scale 2 is stored as 12345 (0x39 0x30 0x00 0x00 …).

Trait Implementations

impl Clone for Numeric

fn clone(&self) -> Numeric

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Numeric

impl Debug for Numeric

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

Formats the value using the given formatter.

impl Default for Numeric

fn default() -> Numeric

Returns the “default value” for a type.

impl Eq for Numeric

impl PartialEq for Numeric

fn eq(&self, other: &Numeric) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Numeric