Row

Struct Row 

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pub struct Row { /* private fields */ }
Expand description

A row of data from a query result.

Rows contain values that can be accessed by column index (0-based) or by column name. Use the get_* methods for type-safe value extraction.

§Example

use oracle_rs::{Connection, Row};

let result = conn.query("SELECT id, name, salary FROM employees", &[]).await?;

for row in &result.rows {
    // Access by index
    let id = row.get_i64(0).unwrap_or(0);

    // Access by column name
    let name = row.get_by_name("name").and_then(|v| v.as_str()).unwrap_or("");
    let salary = row.get_by_name("salary").and_then(|v| v.as_f64()).unwrap_or(0.0);

    println!("{}: {} (${:.2})", id, name, salary);
}

Implementations§

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impl Row

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pub fn new(values: Vec<Value>) -> Self

Create a new row with values

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pub fn with_names(values: Vec<Value>, names: Vec<String>) -> Self

Create a new row with values and column names

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pub fn len(&self) -> usize

Get the number of columns in this row

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pub fn is_empty(&self) -> bool

Check if the row is empty

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pub fn get(&self, index: usize) -> Option<&Value>

Get a value by column index

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pub fn get_by_name(&self, name: &str) -> Option<&Value>

Get a value by column name

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pub fn values(&self) -> &[Value]

Get all values as a slice

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pub fn into_values(self) -> Vec<Value>

Consume the row and return the values

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pub fn get_string(&self, index: usize) -> Option<&str>

Try to get a string value by index

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pub fn get_i64(&self, index: usize) -> Option<i64>

Try to get an integer value by index

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pub fn get_f64(&self, index: usize) -> Option<f64>

Try to get a float value by index

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pub fn is_null(&self, index: usize) -> bool

Check if a column value is NULL

Trait Implementations§

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impl Clone for Row

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fn clone(&self) -> Row

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 Row

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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 Index<usize> for Row

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type Output = Value

The returned type after indexing.
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fn index(&self, index: usize) -> &Self::Output

Performs the indexing (container[index]) operation. Read more

Auto Trait Implementations§

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impl Freeze for Row

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impl RefUnwindSafe for Row

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impl Send for Row

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impl Sync for Row

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impl Unpin for Row

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impl UnwindSafe for Row

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> Same for T

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type Output = T

Should always be Self
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more