| title | description | author | ms.author | ms.date | ms.service | ms.subservice | ms.topic | ms.custom | f1_keywords | helpviewer_keywords | dev_langs | monikerRange | |||||
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STIsClosed (geometry Data Type) |
STIsClosed (geometry Data Type) |
MladjoA |
mlandzic |
08/03/2017 |
sql |
t-sql |
reference |
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=azuresqldb-current || >=sql-server-2016 || >=sql-server-linux-2017 || =azuresqldb-mi-current || =fabric |
[!INCLUDE SQL Server Azure SQL Database Azure SQL Managed Instance FabricSQLDB]
Returns 1 if the start and end points of the given geometry instance are the same. Returns 1 for geometrycollection types if each contained geometry instance is closed. Returns 0 if the instance is not closed.
.STIsClosed ( )
[!INCLUDEssNoVersion] return type: bit
CLR return type: SqlBoolean
This method returns 0 if any figures of a geometry instance are points, or if the instance is empty.
All Polygon instances are considered closed.
The following example creates a LineString instance and uses STIsClosed() to test if the LineString is closed.
DECLARE @g geometry;
SET @g = geometry::STGeomFromText('LINESTRING(0 0, 2 2, 1 0)', 0);
SELECT @g.STIsClosed();