| title | AsTextZM (geometry Data Type) | ||
|---|---|---|---|
| description | AsTextZM (geometry Data Type) | ||
| author | MladjoA | ||
| ms.author | mlandzic | ||
| ms.date | 08/03/2017 | ||
| ms.service | sql | ||
| ms.subservice | t-sql | ||
| ms.topic | 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();