SqlGeography.STDifference 方法
Returns an object representing the points from one SqlGeography instance that do not lie within another SqlGeography instance.
命名空間： Microsoft.SqlServer.Types
組件： Microsoft.SqlServer.Types (在 Microsoft.SqlServer.Types.dll 中)
語法
'宣告
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := False)> _
Public Function STDifference ( _
other As SqlGeography _
) As SqlGeography
'用途
Dim instance As SqlGeography
Dim other As SqlGeography
Dim returnValue As SqlGeography
returnValue = instance.STDifference(other)
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public SqlGeography STDifference(
SqlGeography other
)
[SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)]
public:
SqlGeography^ STDifference(
SqlGeography^ other
)
[<SqlMethodAttribute(IsDeterministic = true, IsPrecise = false)>]
member STDifference :
other:SqlGeography -> SqlGeography
public function STDifference(
other : SqlGeography
) : SqlGeography
參數
- other
型別：Microsoft.SqlServer.Types.SqlGeography
Another SqlGeography instance that indicates which points to remove from the instance on which this method is being invoked.
傳回值
型別：Microsoft.SqlServer.Types.SqlGeography
A SqlGeography value that represents all of the points that are unique to the calling instance.
備註
This method always returns null if the spatial reference IDs (SRIDs) of the SqlGeography instances do not match.