Enum oracle::StmtParam

pub enum StmtParam {
    FetchArraySize(u32),
    Tag(String),
    Scrollable,
}

Parameters of Connection::prepare

No new variants are added to this enum in the future. That’s because a new variant causes breaking changes. New configuration parameters are set via StatementBuilder instead.

Variants

FetchArraySize(u32)

The array size used for performing fetches.

This specifies the number of rows allocated before performing fetches. The default value is 100. Higher value reduces the number of network round trips to fetch rows but requires more memory. The preferable value depends on the query and the environment.

If the query returns only onw row, you should use StmtParam::FetchArraySize(1).

Tag(String)

See StatementBuilder::tag.

Scrollable

Reserved for when scrollable cursors are supported.

Trait Implementations

impl Clone for StmtParam

fn clone(&self) -> StmtParam

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StmtParam

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

Formats the value using the given formatter.

impl PartialEq<StmtParam> for StmtParam

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

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for StmtParam

impl StructuralEq for StmtParam

impl StructuralPartialEq for StmtParam