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SqlGeography.STDifference Method

Returns an object representing the points from one SqlGeography instance that do not lie within another SqlGeography instance.

Namespace:  Microsoft.SqlServer.Types
Assembly:  Microsoft.SqlServer.Types (in Microsoft.SqlServer.Types.dll)

Syntax

'Declaration
<SqlMethodAttribute(IsDeterministic := True, IsPrecise := False)> _
Public Function STDifference ( _
    other As SqlGeography _
) As SqlGeography
'Usage
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

Parameters

Return Value

Type: Microsoft.SqlServer.Types.SqlGeography
A SqlGeography value that represents all of the points that are unique to the calling instance.

Remarks

This method always returns null if the spatial reference IDs (SRIDs) of the SqlGeography instances do not match.

See Also

Reference

SqlGeography Class

Microsoft.SqlServer.Types Namespace