Enum odbc_safe::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

Methods

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 copy of the value.

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

Performs copy-assignment from source.

impl Copy for DataType

impl Eq for DataType

impl PartialEq<DataType> for DataType

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Debug for DataType

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

Formats the value using the given formatter.

impl StructuralPartialEq for DataType

impl StructuralEq for DataType