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DropViewStatement

Struct DropViewStatement 

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pub struct DropViewStatement { /* private fields */ }
Expand description

DROP VIEW statement builder

This struct provides a fluent API for constructing DROP VIEW queries.

§Examples

use reinhardt_query::prelude::*;

let query = Query::drop_view()
    .name("active_users")
    .if_exists();

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impl DropViewStatement

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pub fn new() -> Self

Create a new DROP VIEW statement

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pub fn take(&mut self) -> Self

Take the ownership of data in the current DropViewStatement

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pub fn name<N>(&mut self, name: N) -> &mut Self
where N: IntoIden,

Set the view name to drop

§Examples
use reinhardt_query::prelude::*;

let query = Query::drop_view()
    .name("active_users");
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pub fn names<I, N>(&mut self, names: I) -> &mut Self
where I: IntoIterator<Item = N>, N: IntoIden,

Set multiple view names to drop

§Examples
use reinhardt_query::prelude::*;

let query = Query::drop_view()
    .names(vec!["view1", "view2", "view3"]);
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pub fn if_exists(&mut self) -> &mut Self

Add IF EXISTS clause

§Examples
use reinhardt_query::prelude::*;

let query = Query::drop_view()
    .name("active_users")
    .if_exists();
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pub fn cascade(&mut self) -> &mut Self

Add CASCADE clause

This option automatically drops dependent objects. Supported by PostgreSQL.

§Examples
use reinhardt_query::prelude::*;

let query = Query::drop_view()
    .name("active_users")
    .cascade();
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pub fn restrict(&mut self) -> &mut Self

Add RESTRICT clause

This option prevents dropping if there are dependent objects (default behavior). Supported by PostgreSQL.

§Examples
use reinhardt_query::prelude::*;

let query = Query::drop_view()
    .name("active_users")
    .restrict();
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pub fn materialized(&mut self, materialized: bool) -> &mut Self

Set MATERIALIZED flag (PostgreSQL only)

§Examples
use reinhardt_query::prelude::*;

let query = Query::drop_view()
    .name("active_users")
    .materialized(true);

Trait Implementations§

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impl Clone for DropViewStatement

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fn clone(&self) -> DropViewStatement

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

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

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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 Default for DropViewStatement

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl QueryStatementBuilder for DropViewStatement

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fn build_any(&self, query_builder: &dyn QueryBuilderTrait) -> (String, Values)

Build SQL statement for a database backend and collect query parameters Read more
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fn to_string<T: QueryBuilderTrait>(&self, query_builder: T) -> String

Build SQL statement for a database backend and return SQL string with values inlined as SQL literals. Read more
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fn build<T: QueryBuilderTrait>(&self, query_builder: T) -> (String, Values)

Build SQL statement with parameter collection Read more
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impl QueryStatementWriter for DropViewStatement

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.