SqlValue

Enum SqlValue 

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pub enum SqlValue {
    Null,
    Bool(bool),
    I64(i64),
    U64(u64),
    F64(f64),
    String(Cow<'static, str>),
    Bytes(Vec<u8>),
    DateTime(SqlDateTime),
}
Expand description

SQL 参数值。

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Null

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Bool(bool)

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I64(i64)

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U64(u64)

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F64(f64)

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String(Cow<'static, str>)

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Bytes(Vec<u8>)

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DateTime(SqlDateTime)

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impl SqlValue

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pub fn from_option<T: Into<SqlValue>>(v: Option<T>) -> Self

Option<T> 映射为 SqlValueNone => NullSome(v) => v.into()

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impl Clone for SqlValue

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fn clone(&self) -> SqlValue

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SqlValue

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

Formats the value using the given formatter. Read more
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impl From<&'static str> for SqlValue

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fn from(v: &'static str) -> Self

Converts to this type from the input type.
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impl From<()> for SqlValue

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fn from(_: ()) -> Self

Converts to this type from the input type.
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impl From<OffsetDateTime> for SqlValue

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fn from(v: OffsetDateTime) -> Self

Converts to this type from the input type.
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impl From<SqlValue> for Arg

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fn from(v: SqlValue) -> Self

Converts to this type from the input type.
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impl From<String> for SqlValue

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fn from(v: String) -> Self

Converts to this type from the input type.
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impl From<Vec<u8>> for SqlValue

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fn from(v: Vec<u8>) -> Self

Converts to this type from the input type.
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impl From<bool> for SqlValue

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fn from(v: bool) -> Self

Converts to this type from the input type.
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impl From<f32> for SqlValue

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fn from(v: f32) -> Self

Converts to this type from the input type.
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impl From<f64> for SqlValue

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fn from(v: f64) -> Self

Converts to this type from the input type.
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impl From<i16> for SqlValue

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fn from(v: i16) -> Self

Converts to this type from the input type.
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impl From<i32> for SqlValue

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fn from(v: i32) -> Self

Converts to this type from the input type.
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impl From<i64> for SqlValue

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fn from(v: i64) -> Self

Converts to this type from the input type.
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impl From<i8> for SqlValue

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fn from(v: i8) -> Self

Converts to this type from the input type.
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impl From<u16> for SqlValue

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fn from(v: u16) -> Self

Converts to this type from the input type.
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impl From<u32> for SqlValue

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fn from(v: u32) -> Self

Converts to this type from the input type.
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impl From<u64> for SqlValue

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fn from(v: u64) -> Self

Converts to this type from the input type.
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impl From<u8> for SqlValue

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fn from(v: u8) -> Self

Converts to this type from the input type.
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impl PartialEq for SqlValue

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

Auto Trait Implementations§

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<T> FlattenIntoArgs for T
where T: Into<Arg>,

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fn flatten_into(self, out: &mut Vec<Arg>)

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.