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STIsEmpty (geography Data Type)

Returns 1 if a geography instance is empty. Returns 0 if a geography instance is not empty.

Składnia

.STIsEmpty ( )

Return Types

SQL Server return type: bit

CLR return type: SqlBoolean

Examples

The following example creates an empty geography instance and uses STIsEmpty() to verify that the instance is empty.

DECLARE @g geography;
SET @g = geography::STGeomFromText('POLYGON EMPTY', 4326);
SELECT @g.STIsEmpty();

Zobacz także

Inne zasoby

OGC Methods on Geography Instances