dpiAnnotation

Struct dpiAnnotation 

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#[repr(C)]
pub struct dpiAnnotation { pub key: *const c_char, pub keyLength: u32, pub value: *const c_char, pub valueLength: u32, }
Expand description

This structure is part of the structure dpiDataTypeInfo and provides information about annotations associated with columns that are fetched from the database. Annotations are only available with Oracle Database 23ai (or later). Oracle Client libraries must also be 23.1 (or later).

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§key: *const c_char

Specifies the annoation key.

§keyLength: u32

Specifies the length of the annotation key, in bytes.

§value: *const c_char

Specifies the annoation value.

§valueLength: u32

Specifies the length of the annotation value, in bytes.

Trait Implementations§

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impl Clone for dpiAnnotation

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fn clone(&self) -> dpiAnnotation

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for dpiAnnotation

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

Formats the value using the given formatter. Read more
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impl Default for dpiAnnotation

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Copy for dpiAnnotation

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.