STIsClosed (geography Data Type)
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance
Returns 1 if the start and end points of the given geography instance are the same. Returns 1 for geography collection types if each contained geography instance is closed. Returns 0 if the instance is not closed.
This geography data type method supports FullGlobe instances or spatial instances that are larger than a hemisphere.
Syntax
.STIsClosed ( )
Note
To view Transact-SQL syntax for SQL Server 2014 (12.x) and earlier versions, see Previous versions documentation.
Return Types
SQL Server return type: bit
CLR return type: SqlBoolean
Remarks
This method returns 0 if any figures of a geography instance are points, or if the instance is empty.
This method returns true if a FullGlobe instance is a Polygon or other type of instance.
All Polygon instances are considered closed.
Examples
The following example creates a Polygon
instance and uses STIsClosed()
to test if the Polygon
is closed.
DECLARE @g geography;
SET @g = geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326);
SELECT @g.STIsClosed();
See Also
Σχόλια
https://aka.ms/ContentUserFeedback.
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