Enum DataType 

pub enum DataType {
    Char(SQLULEN),
    Numeric(SQLULEN, SQLSMALLINT),
    Decimal(SQLULEN, SQLSMALLINT),
    Integer,
    SmallInt,
    Float,
    Real,
    Double,
    Varchar(SQLULEN),
}

Describes a column or parameter type.

Variants

Char(SQLULEN)

Fixed sized single byte character data

Numeric(SQLULEN, SQLSMALLINT)

Exact numerical, with (Precision, Scale)

Decimal(SQLULEN, SQLSMALLINT)

Exact numerical, with (Precision, Scale)

Integer

Integer numerical with precision 10

SmallInt

Small integer numerical with precision 5

Float

Approximate numerical with precision 15

Real

Approximate numerical with precison 7

Double

Approximate numerical with precision 15

Varchar(SQLULEN)

Variadic sized single byte character data

Implementations

impl DataType

Determines the type stored at the data source

See [Data Types][1] [1]: https://docs.microsoft.com/sql/odbc/reference/appendixes/appendix-d-data-types

pub fn new( data_type: SqlDataType, column_size: SQLULEN, decimal_digits: SQLSMALLINT, ) -> Option<DataType>

Creates a DataType from a triplet. If the data_type does not require the information column_size or decimal_digits.

pub fn sql_data_type(&self) -> SqlDataType

See [SQL Data Types][1] [1]: https://docs.microsoft.com/sql/odbc/reference/appendixes/sql-data-types

pub fn column_size(&self) -> SQLULEN

See [Column Size][1] [1]: https://docs.microsoft.com/sql/odbc/reference/appendixes/column-size

pub fn decimal_digits(&self) -> SQLSMALLINT

See [Decimal Digits][1] [1]: https://docs.microsoft.com/sql/odbc/reference/appendixes/decimal-digits

Trait Implementations

impl Clone for DataType

fn clone(&self) -> DataType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataType

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

Formats the value using the given formatter.

impl PartialEq for DataType

fn eq(&self, other: &DataType) -> 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 Copy for DataType

impl Eq for DataType

impl StructuralPartialEq for DataType