UnionAggregate (geography Data Type)

Performs a union operation on a set of geography objects.

Syntax

UnionAggregate ( geography_operand )

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 AdventureWorks2012

GO

SELECT City,

geography::UnionAggregate(SpatialLocation) AS SpatialLocation

FROM Person.Address

WHERE PostalCode LIKE('981%')

GROUP BY City;

See Also

Other Resources

Extended Static Geography Methods