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UpdateStmt

Struct UpdateStmt 

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pub struct UpdateStmt {
    pub table: TableName,
    pub assignments: Vec<UpdateAssignment>,
    pub where_: Option<Expr>,
    pub returning: Vec<ColumnName>,
}
Expand description

An UPDATE statement.

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§table: TableName

The table to update.

§assignments: Vec<UpdateAssignment>

Column assignments (SET clause).

§where_: Option<Expr>

Optional WHERE clause filter.

§returning: Vec<ColumnName>

Columns to return after update (RETURNING clause).

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impl UpdateStmt

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pub fn new(table: TableName) -> Self

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pub fn set(self, column: ColumnName, value: Expr) -> Self

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pub fn where_(self, expr: Expr) -> Self

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pub fn and_where(self, expr: Expr) -> Self

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pub fn returning(self, cols: impl IntoIterator<Item = ColumnName>) -> Self

Trait Implementations§

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impl Clone for UpdateStmt

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fn clone(&self) -> UpdateStmt

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
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impl Debug for UpdateStmt

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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 Render for UpdateStmt

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

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> 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.