AsTextZM (geography Data Type)


THIS TOPIC APPLIES TO:yesSQL Server (starting with 2008)yesAzure SQL DatabasenoAzure SQL Data Warehouse noParallel Data Warehouse

Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a geography instance augmented with any Z (elevation) and M (measure) values carried by the instance.

.AsTextZM ()  

SQL Server 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, (-122.34900 47.65100); AsTextZM() selects the same WKT values and also returns the values for Z and M, yielding (-122.34900 47.65100 10.3 12).

DECLARE @g geography;  
SET @g = geography::STGeomFromText('POINT(-122.34900 47.65100 10.3 12)', 4326);  
SELECT @g.STAsText();  
SELECT @g.AsTextZM();  

Extended Methods on Geography Instances
M (geography Data Type)
Z (geography Data Type)

Community Additions