| title | ConvexHullAggregate (geography Data Type) | ||
|---|---|---|---|
| description | ConvexHullAggregate (geography Data Type) | ||
| author | MladjoA | ||
| ms.author | mlandzic | ||
| ms.date | 07/30/2017 | ||
| ms.service | sql | ||
| ms.subservice | t-sql | ||
| ms.topic | reference | ||
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| monikerRange | =azuresqldb-current || >=sql-server-2016 || >=sql-server-linux-2017 || =azuresqldb-mi-current || =fabric-sqldb |
[!INCLUDE SQL Server Azure SQL Database Azure SQL Managed Instance FabricSQLDB]
Returns a convex hull for a given set of geography objects.
ConvexHullAggregate ( geography_operand )
geography_operand
Is a geography type table column that represents a set of geography objects.
[!INCLUDEssNoVersion] return type: geography
Throws a FormatException when there are input values that are not valid. See STIsValid (geography Data Type)
Method returns null when the input is empty or the input has different SRIDs. See Spatial Reference Identifiers (SRIDs)
Method ignores null inputs.
Note
Method returns null if all inputted values are null.
The following example returns a convex hull of the set of geography objects.
USE AdventureWorks2022
GO
SELECT geography::ConvexHullAggregate(SpatialLocation).ToString() AS SpatialLocation
FROM Person.Address
WHERE City LIKE ('Bothell')