| title | description | author | ms.author | ms.date | ms.service | ms.subservice | ms.topic | ms.custom | f1_keywords | helpviewer_keywords | dev_langs | monikerRange | |||||
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STAsText (geography Data Type) |
STAsText (geography Data Type) |
MladjoA |
mlandzic |
03/14/2017 |
sql |
t-sql |
reference |
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=azuresqldb-current || >=sql-server-2016 || >=sql-server-linux-2017 || =azuresqldb-mi-current || =fabric |
[!INCLUDE SQL Server Azure SQL Database Azure SQL Managed Instance FabricSQLDB]
Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a geography instance. This text will not contain any Z (elevation) or M (measure) values carried by the instance.
This geography data type method supports FullGlobe instances or spatial instances that are larger than a hemisphere.
.STAsText ( )
[!INCLUDEssNoVersion] return type: nvarchar(max)
CLR return type: SqlChars
The OGC type of a geography instance can be determined by invoking STGeometryType().
In [!INCLUDEssSQL11], the set of possible results returned on the server has been extended to FullGlobe instances.
The following example uses STAsText() to create a LineString``geography instance from (-122.360, 47.656) to (-122.343, 47.656) from text. It then returns the result in text.
DECLARE @g geography;
SET @g = geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326);
SELECT @g.STAsText();