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ColumnType

Enum ColumnType

pub enum ColumnType {
Show 35 variants    Null,
    Bit,
    Int1,
    Int2,
    Int4,
    Int8,
    Datetime4,
    Float4,
    Float8,
    Money,
    Datetime,
    Money4,
    Guid,
    Intn,
    Bitn,
    Decimaln,
    Numericn,
    Floatn,
    Datetimen,
    Daten,
    Timen,
    Datetime2,
    DatetimeOffsetn,
    BigVarBin,
    BigVarChar,
    BigBinary,
    BigChar,
    NVarchar,
    NChar,
    Xml,
    Udt,
    Text,
    Image,
    NText,
    SSVariant,
}

Expand description

The type of the column.

Variants§

Null

The column doesn’t have a specified type.

Bit

A bit or boolean value.

Int1

An 8-bit integer value.

Int2

A 16-bit integer value.

Int4

A 32-bit integer value.

Int8

A 64-bit integer value.

Datetime4

A 32-bit datetime value.

Float4

A 32-bit floating point value.

Float8

A 64-bit floating point value.

Money

Money value.

Datetime

A TDS 7.2 datetime value.

Money4

A 32-bit money value.

Guid

A unique identifier, UUID.

Intn

N-bit integer value (variable).

Bitn

A bit value in a variable-length type.

Decimaln

A decimal value (same as Numericn).

Numericn

A numeric value (same as Decimaln).

Floatn

A n-bit floating point value.

Datetimen

A n-bit datetime value (TDS 7.2).

Daten

A n-bit date value (TDS 7.3).

Timen

A n-bit time value (TDS 7.3).

Datetime2

A n-bit datetime2 value (TDS 7.3).

DatetimeOffsetn

A n-bit datetime value with an offset (TDS 7.3).

BigVarBin

A variable binary value.

BigVarChar

A large variable string value.

BigBinary

A binary value.

BigChar

A string value.

NVarchar

A variable string value with UTF-16 encoding.

NChar

A string value with UTF-16 encoding.

Xml

A XML value.

Udt

User-defined type.

Text

A text value (deprecated).

Image

A image value (deprecated).

NText

A text value with UTF-16 encoding (deprecated).

SSVariant

An SQL variant type.

Trait Implementations§

impl Clone for ColumnType

fn clone(&self) -> ColumnType

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl Copy for ColumnType

impl Debug for ColumnType

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

Formats the value using the given formatter. Read more

impl<'de> Deserialize<'de> for ColumnType

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. Read more

impl Eq for ColumnType

impl From<&TypeInfo> for ColumnType

fn from(ti: &TypeInfo) -> Self

Converts to this type from the input type.

impl PartialEq for ColumnType

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

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more

impl Serialize for ColumnType

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. Read more

impl StructuralPartialEq for ColumnType

Auto Trait Implementations§

impl Freeze for ColumnType

impl RefUnwindSafe for ColumnType

impl Send for ColumnType

impl Sync for ColumnType

impl Unpin for ColumnType

impl UnsafeUnpin for ColumnType

impl UnwindSafe for ColumnType

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

impl<T> Same for T

type Output = T

Should always be Self

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = !

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more