Struct DropSequenceStatement 

pub struct DropSequenceStatement { /* private fields */ }

DROP SEQUENCE statement builder

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

Examples

use reinhardt_query::prelude::*;

// DROP SEQUENCE my_seq
let query = Query::drop_sequence()
    .name("my_seq");

// DROP SEQUENCE IF EXISTS my_seq
let query = Query::drop_sequence()
    .name("my_seq")
    .if_exists();

// DROP SEQUENCE my_seq CASCADE
let query = Query::drop_sequence()
    .name("my_seq")
    .cascade();

Implementations

impl DropSequenceStatement

pub fn new() -> Self

Create a new DROP SEQUENCE statement

Examples

use reinhardt_query::prelude::*;

let query = Query::drop_sequence();

pub fn take(&mut self) -> Self

Take the ownership of data in the current DropSequenceStatement

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

where N: IntoIden,

Set the sequence name

Examples

use reinhardt_query::prelude::*;

let query = Query::drop_sequence()
    .name("my_seq");

pub fn if_exists(&mut self) -> &mut Self

Add IF EXISTS clause

Examples

use reinhardt_query::prelude::*;

let query = Query::drop_sequence()
    .name("my_seq")
    .if_exists();

pub fn cascade(&mut self) -> &mut Self

Add CASCADE clause

This will also drop objects that depend on the sequence.

Examples

use reinhardt_query::prelude::*;

let query = Query::drop_sequence()
    .name("my_seq")
    .cascade();

pub fn restrict(&mut self) -> &mut Self

Add RESTRICT clause

This will refuse to drop the sequence if any objects depend on it (default behavior).

Examples

use reinhardt_query::prelude::*;

let query = Query::drop_sequence()
    .name("my_seq")
    .restrict();

Trait Implementations

impl Clone for DropSequenceStatement

fn clone(&self) -> DropSequenceStatement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DropSequenceStatement

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

Formats the value using the given formatter.

impl Default for DropSequenceStatement

fn default() -> Self

Returns the “default value” for a type.

impl QueryStatementBuilder for DropSequenceStatement

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

Build SQL statement for a database backend and collect query parameters

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.

fn build<T: QueryBuilderTrait>(&self, query_builder: T) -> (String, Values)

Build SQL statement with parameter collection

impl QueryStatementWriter for DropSequenceStatement