Enum sqlparser::ast::DeclareAssignment
source · pub enum DeclareAssignment {
Expr(Box<Expr>),
Default(Box<Expr>),
DuckAssignment(Box<Expr>),
For(Box<Expr>),
MsSqlAssignment(Box<Expr>),
}
Expand description
Represents an expression assignment within a variable DECLARE
statement.
Examples:
DECLARE variable_name := 42
DECLARE variable_name DEFAULT 42
Variants§
Expr(Box<Expr>)
Plain expression specified.
Default(Box<Expr>)
Expression assigned via the DEFAULT
keyword
DuckAssignment(Box<Expr>)
Expression assigned via the :=
syntax
Example:
DECLARE variable_name := 42;
For(Box<Expr>)
Expression via the FOR
keyword
Example:
DECLARE c1 CURSOR FOR res
MsSqlAssignment(Box<Expr>)
Expression via the =
syntax.
Example:
DECLARE @variable AS INT = 100
Trait Implementations§
source§impl Clone for DeclareAssignment
impl Clone for DeclareAssignment
source§fn clone(&self) -> DeclareAssignment
fn clone(&self) -> DeclareAssignment
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for DeclareAssignment
impl Debug for DeclareAssignment
source§impl<'de> Deserialize<'de> for DeclareAssignment
impl<'de> Deserialize<'de> for DeclareAssignment
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
source§impl Display for DeclareAssignment
impl Display for DeclareAssignment
source§impl Hash for DeclareAssignment
impl Hash for DeclareAssignment
source§impl Ord for DeclareAssignment
impl Ord for DeclareAssignment
source§fn cmp(&self, other: &DeclareAssignment) -> Ordering
fn cmp(&self, other: &DeclareAssignment) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
source§impl PartialEq for DeclareAssignment
impl PartialEq for DeclareAssignment
source§impl PartialOrd for DeclareAssignment
impl PartialOrd for DeclareAssignment
source§impl Serialize for DeclareAssignment
impl Serialize for DeclareAssignment
source§impl Visit for DeclareAssignment
impl Visit for DeclareAssignment
source§impl VisitMut for DeclareAssignment
impl VisitMut for DeclareAssignment
fn visit<V: VisitorMut>(&mut self, visitor: &mut V) -> ControlFlow<V::Break>
impl Eq for DeclareAssignment
impl StructuralPartialEq for DeclareAssignment
Auto Trait Implementations§
impl Freeze for DeclareAssignment
impl RefUnwindSafe for DeclareAssignment
impl Send for DeclareAssignment
impl Sync for DeclareAssignment
impl Unpin for DeclareAssignment
impl UnwindSafe for DeclareAssignment
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)