Enum odbc_api::Nullability [−][src]
pub enum Nullability { Unknown, Nullable, NoNulls, }
Expand description
Indication of whether a column is nullable or not.
Variants
Indicates that we do not know whether the column is Nullable or not.
The column may hold NULL values.
The column can not hold NULL values.
Implementations
Construct a new instance from a Nullability
new type constant.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for Nullability
impl Send for Nullability
impl Sync for Nullability
impl Unpin for Nullability
impl UnwindSafe for Nullability
Blanket Implementations
Mutably borrows from an owned value. Read more