rsdbc_core::connection

Trait Statement

Source 
pub trait Statement<'conn> {
    // Required methods
    fn add(&mut self) -> &mut Self
       where Self: Sized;
    fn bind_index<T>(&mut self, index: u32, value: T) -> &mut Self
       where Self: Sized;
    fn bind_name<T>(&mut self, name: &str, value: T) -> &mut Self
       where Self: Sized;
    fn bind_null_index(&mut self, index: u32) -> &mut Self
       where Self: Sized;
    fn bind_null_name(&mut self, name: &str) -> &mut Self
       where Self: Sized;
    fn execute<T: SQLResult>(&self) -> Result<T>
       where Self: Sized;

    // Provided methods
    fn return_generated_values(&mut self, columns: &[&str]) -> &mut Self
       where Self: Sized { ... }
    fn fetch_size(&mut self, rows: u32) -> &mut Self
       where Self: Sized { ... }
}
Expand description

Represents an executable statement

Required Methods§

Source

fn add(&mut self) -> &mut Self
where Self: Sized,

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fn bind_index<T>(&mut self, index: u32, value: T) -> &mut Self
where Self: Sized,

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fn bind_name<T>(&mut self, name: &str, value: T) -> &mut Self
where Self: Sized,

Source

fn bind_null_index(&mut self, index: u32) -> &mut Self
where Self: Sized,

Source

fn bind_null_name(&mut self, name: &str) -> &mut Self
where Self: Sized,

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fn execute<T: SQLResult>(&self) -> Result<T>
where Self: Sized,

Provided Methods§

Source

fn return_generated_values(&mut self, columns: &[&str]) -> &mut Self
where Self: Sized,

Configures Statement to return the generated values from any rows created by this Statement in the SQLResult returned from [execute()]. If no columns are specified, implementations are free to choose which columns will be returned. If called multiple times, only the columns requested in the final invocation will be returned.

The default implementation of this method is a no-op.

Source

fn fetch_size(&mut self, rows: u32) -> &mut Self
where Self: Sized,

Configures Statement to retrieve a fixed number of rows when fetching results from a query instead deriving fetch size from back pressure. If called multiple times, only the fetch size configured in the final invocation will be applied. If the value specified is zero, then the hint is ignored. The default implementation of this method is a no op and the default value is zero.

Implementors§