public UpsertResult[] upsert(
	string externalIDFieldName,
	sObject[] sObjects
)

Public Function upsert ( _
	externalIDFieldName As String, _
	sObjects As sObject() _
) As UpsertResult()

public:
array<UpsertResult^>^ upsert(
	String^ externalIDFieldName, 
	array<sObject^>^ sObjects
)