Export (0) Print
Expand All

STDimension (geography Data Type)

Applies To: SQL Server 2014, SQL Server 2016 Preview

Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).

Returns the maximum dimension of a geography instance.

Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database.

.STDimension ( )

SQL Server return type: int

CLR return type: SqlInt32

STDimension() returns -1 if the geography instance is empty.

The following example uses STDimension() to create a table variable to hold geography instances, and inserts a Point, a LineString, and a Polygon.

DECLARE @temp table ([name] varchar(10), [geom] geography);

INSERT INTO @temp values ('Point', geography::STGeomFromText('POINT(-122.34900 47.65100)', 4326));
INSERT INTO @temp values ('LineString', geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326));
INSERT INTO @temp values ('Polygon', geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326));

SELECT [name], [geom].STDimension() as [dim]
FROM @temp;

The example then returns the dimensions of each geography instance.

name

dim

Point

0

LineString

1

Polygon

2

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2015 Microsoft