STSrid (geometry Data Type)
STSrid is an integer representing the spatial reference identifier of the instance.
This property can be modified.
Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database.
The first example creates a geometry instance with the SRID value 13 and uses STSrid to confirm the SRID.
DECLARE @g geometry; SET @g = geometry::STGeomFromText('POLYGON((0 0, 3 0, 3 3, 0 3, 0 0))', 13); SELECT @g.STSrid;
The second example uses STSrid to change the SRID value of the instance to 23 and then confirms the modified SRID value.
SET @g.STSrid = 23; SELECT @g.STSrid;