| title | description | author | ms.author | ms.date | ms.service | ms.subservice | ms.topic | ms.custom | f1_keywords | helpviewer_keywords | dev_langs | |||||
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AsTextZM (geometry Data Type) |
AsTextZM (geometry Data Type) |
MladjoA |
mlandzic |
08/03/2017 |
sql |
t-sql |
reference |
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[!INCLUDE SQL Server Azure SQL Database Azure SQL Managed Instance FabricSQLDB]
Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a geometry instance augmented with any Z (elevation) and M (measure) values carried by the instance.
.AsTextZM () [!INCLUDEssNoVersion] return type: nvarchar(max)
CLR return type: SqlChars
The following example creates a Point instance that contains Z (elevation) and M (measure) values. STAsText() selects the WKT values, (1 2); AsTextZM() selects the same WKT values and also returns the values for Z and M, yielding (1 2 3 4).
DECLARE @g geometry;
SET @g = geometry::STGeomFromText('POINT(1 2 3 4)', 0);
SELECT @g.STAsText();
SELECT @g.AsTextZM();