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ToString (geometry Data Type)

  • Artikkeli

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric

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.

Syntax

  
.ToString ()

Return Types

SQL Server return type: nvarchar(max)

CLR return type: SqlString

Remarks

This method will return the string "Null" when called on null instances.

On non-null instances, this method is equivalent to using AsTextZM().

Examples

The following example create a LineString instance and uses ToString() to fetch the text description of the instance.

DECLARE @g geometry;  
SET @g = geometry::STGeomFromText('LINESTRING(0 0, 0 1, 1 0)', 0);  
SELECT @g.ToString();

See Also

STAsText (geometry Data Type)
Extended Methods on Geometry Instances