STSrid (geography Data Type)
STSrid is an integer representing the spatial reference identifier (SRID) of the instance.
This property can be modified.
For more information on SRIDs, see Spatial Reference Identifiers (SRIDs).
The first example creates a geography instance with the SRID value 4326 (WGS84) and uses STSrid to confirm the SRID.
DECLARE @g geography; SET @g = geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326); SELECT @g.STSrid;
The second example uses STSrid to change the SRID value of the instance to 4267 (NAD27) and then confirms the modified SRID value.
SET @g.STSrid = 4267; SELECT @g.STSrid;