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geometry (Transact-SQL)
geometry Data Type Method Reference
OGC Methods on Geometry Instances
STArea (geometry Data Type)
STAsBinary (geometry Data Type)
STAsText (geometry Data Type)
STBoundary (geometry Data Type)
STBuffer (geometry Data Type)
STCentroid (geometry Data Type)
STContains (geometry Data Type)
STConvexHull (geometry Data Type)
STCrosses (geometry Data Type)
STCurveN (geometry Data Type)
STCurveToLine (geometry Data Type)
STDifference (geometry Data Type)
STDimension (geometry Data Type)
STDisjoint (geometry Data Type)
STDistance (geometry Data Type)
STEndpoint (geometry Data Type)
STEnvelope (geometry Data Type)
STEquals (geometry Data Type)
STExteriorRing (geometry Data Type)
STGeometryN (geometry Data Type)
STGeometryType (geometry Data Type)
STInteriorRingN (geometry Data Type)
STIntersection (geometry Data Type)
STIntersects (geometry Data Type)
STIsClosed (geometry Data Type)
STIsEmpty (geometry Data Type)
STIsRing (geometry Data Type)
STIsSimple (geometry Data Type)
STIsValid (geometry Data Type)
STLength (geometry Data Type)
STNumCurves (geometry Data Type)
STNumGeometries (geometry Data Type)
STNumInteriorRing (geometry Data Type)
STNumPoints (geometry Data Type)
STOverlaps (geometry Data Type)
STPointN (geometry Data Type)
STPointOnSurface (geometry Data Type)
STRelate (geometry Data Type)
STSrid (geometry Data Type)
STStartPoint (geometry Data Type)
STSymDifference (geometry Data Type)
STTouches (geometry Data Type)
STUnion (geometry Data Type)
STWithin (geometry Data Type)
STX (geometry Data Type)
STY (geometry Data Type)
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STAsText (geometry Data Type)

SQL Server 2012

Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a geometry instance. This text will not contain any Z (elevation) or M (measure) values carried by the instance.

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.STAsText ( )

SQL Server return type: nvarchar(max)

CLR return type: SqlChars

The following example creates a LineString geometry instance from (0,0) to (2,3) from text. STAsText() returns the result in text.

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DECLARE @g geometry;
SET @g = geometry::STGeomFromText('LINESTRING(0 0, 2 3)', 0);
SELECT @g.STAsText();
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