UnionAggregate (geography Data Type)

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance

Performs a union operation on a set of geography objects.

Syntax

  
UnionAggregate ( geography_operand )  

Note

To view Transact-SQL syntax for SQL Server 2014 (12.x) and earlier versions, see Previous versions documentation.

Arguments

geography_operand
Is a geography type table column that holds the set of geography objects on which to perform a union operation.

Return Types

SQL Server return type: geography

Remarks

Method returns null if the input has different SRIDs. See Spatial Reference Identifiers (SRIDs).

Method ignores null inputs.

Note

Method returns null if all inputted values are null.

Examples

The following example performs a UnionAggregate on a set of geography location points within a city.

USE AdventureWorks2022  
GO  
SELECT City,  
geography::UnionAggregate(SpatialLocation) AS SpatialLocation  
FROM Person.Address  
WHERE PostalCode LIKE('981%')  
GROUP BY City;

See Also

Extended Static Geography Methods