pub struct FieldMetadata { /* private fields */ }Expand description
Metadata of a field in a ResultSet.
Implementations§
Source§impl FieldMetadata
impl FieldMetadata
Sourcepub fn schemaname(&self) -> &str
pub fn schemaname(&self) -> &str
Database schema of the field.
Sourcepub fn columnname(&self) -> &str
pub fn columnname(&self) -> &str
Column name.
Sourcepub fn displayname(&self) -> &str
pub fn displayname(&self) -> &str
Display name of the column.
Sourcepub fn is_nullable(&self) -> bool
pub fn is_nullable(&self) -> bool
True if column can contain NULL values.
Sourcepub fn scale(&self) -> i16
pub fn scale(&self) -> i16
The scale of the value.
Is 0 for all types where a scale does not make sense.
Sourcepub fn has_default(&self) -> bool
pub fn has_default(&self) -> bool
Returns true if the column has a default value.
Sourcepub fn is_read_only(&self) -> bool
pub fn is_read_only(&self) -> bool
Returns true if the column is read-only.
Sourcepub fn is_auto_incremented(&self) -> bool
pub fn is_auto_incremented(&self) -> bool
Returns true if the column is auto-incremented.
Sourcepub fn is_array_type(&self) -> bool
pub fn is_array_type(&self) -> bool
Returns true if the column is of array type.
Trait Implementations§
Source§impl Clone for FieldMetadata
impl Clone for FieldMetadata
Source§fn clone(&self) -> FieldMetadata
fn clone(&self) -> FieldMetadata
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moreAuto Trait Implementations§
impl Freeze for FieldMetadata
impl RefUnwindSafe for FieldMetadata
impl Send for FieldMetadata
impl Sync for FieldMetadata
impl Unpin for FieldMetadata
impl UnwindSafe for FieldMetadata
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