Enum ColumnData 

pub enum ColumnData<'a> {
    U8(Option<u8>),
    I16(Option<i16>),
    I32(Option<i32>),
    I64(Option<i64>),
    F32(Option<f32>),
    F64(Option<f64>),
    Bit(Option<bool>),
    String(Option<Cow<'a, str>>),
    VarChar(Option<Cow<'a, str>>),
    Guid(Option<Uuid>),
    Binary(Option<Cow<'a, [u8]>>),
    Numeric(Option<Numeric>),
    Xml(Option<Cow<'a, XmlData>>),
    DateTime(Option<DateTime>),
    SmallDateTime(Option<SmallDateTime>),
    Time(Option<Time>),
    Date(Option<Date>),
    DateTime2(Option<DateTime2>),
    DateTimeOffset(Option<DateTimeOffset>),
}

A container of a value that can be represented as a TDS value.

Variants

U8(Option<u8>)

8-bit integer, unsigned.

I16(Option<i16>)

16-bit integer, signed.

I32(Option<i32>)

32-bit integer, signed.

I64(Option<i64>)

64-bit integer, signed.

F32(Option<f32>)

32-bit floating point number.

F64(Option<f64>)

64-bit floating point number.

Bit(Option<bool>)

Boolean.

String(Option<Cow<'a, str>>)

A string value. Sent as nvarchar; every character column reads as this.

VarChar(Option<Cow<'a, str>>)

A string value to send as varchar, in the session’s collation.

Use it for a parameter compared with a varchar column under a SQL_* collation: an nvarchar parameter outranks the column there, so the server converts every row and cannot seek the index. A character the collation’s code page lacks is an error, and a value over 8000 bytes goes as varchar(max).

Only sent, never read: a varchar column arrives as String too.

Guid(Option<Uuid>)

A Guid (UUID) value.

Binary(Option<Cow<'a, [u8]>>)

Binary data.

Numeric(Option<Numeric>)

Numeric value (a decimal).

Xml(Option<Cow<'a, XmlData>>)

XML data.

DateTime(Option<DateTime>)

DateTime value.

SmallDateTime(Option<SmallDateTime>)

A small DateTime value.

Time(Option<Time>)

Available on crate feature tds73 only.

Time value.

Date(Option<Date>)

Available on crate feature tds73 only.

Date value.

DateTime2(Option<DateTime2>)

Available on crate feature tds73 only.

DateTime2 value.

DateTimeOffset(Option<DateTimeOffset>)

Available on crate feature tds73 only.

DateTime2 value with an offset.

Trait Implementations

impl<'a> Clone for ColumnData<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ColumnData<'a>

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

Formats the value using the given formatter.

impl<'de, 'a> Deserialize<'de> for ColumnData<'a>

Available on crate feature serde only.

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a> FromSql<'a> for ColumnData<'a>

Reads a ColumnData straight out of a row without any conversion, borrowing from the row’s owned data.

fn from_sql(value: &'a ColumnData<'static>) -> Result<Option<Self>>

Returns the value, None being a null value, copying the value.

impl<'a> FromSqlOwned for ColumnData<'a>

Reads a ColumnData straight out of a row without any conversion, taking ownership of the value.

fn from_sql_owned(value: ColumnData<'static>) -> Result<Option<Self>>

Returns the value, None being a null value, taking the ownership.

impl<'a> IntoSql<'a> for ColumnData<'a>

Binds a ColumnData directly as a query parameter, by value.

fn into_sql(self) -> ColumnData<'a>

Convert to a value understood by the SQL Server. Conversion by-value.

impl<'a> PartialEq for ColumnData<'a>

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

Equality operator ==.

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

Inequality operator !=.

impl<'a> Serialize for ColumnData<'a>

Available on crate feature serde only.

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<'a> StructuralPartialEq for ColumnData<'a>

impl<'a> ToSql for ColumnData<'a>

Binds a ColumnData directly as a query parameter, by reference.

fn to_sql(&self) -> ColumnData<'_>

Convert to a value understood by the SQL Server. Conversion by-reference.