keyuniquenessguarantee-element-assl.md

title	KeyUniquenessGuarantee Element (ASSL) | Microsoft Docs
ms.custom
ms.date	03/14/2017
ms.prod	sql-server-2016
ms.reviewer
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ms.technology	analysis-services docset-sql-devref
ms.tgt_pltfrm
ms.topic	reference
apiname	KeyUniquenessGuarantee Element
apilocation	http://schemas.microsoft.com/analysisservices/2003/engine
apitype	Schema
applies_to	SQL Server 2016 Preview
f1_keywords	KeyUniquenessGuarantee
helpviewer_keywords	KeyUniquenessGuarantee element
ms.assetid	6e0cf107-dd02-4bbd-94f5-c26d96438d4b
caps.latest.revision	32
author	Minewiskan
ms.author	owend
manager	erikre

KeyUniquenessGuarantee Element (ASSL)

Indicates whether the relationship between the attribute key and its name, and the relationship to related attributes, is guaranteed to be valid.

Syntax

  
<DimensionAttribute>  
   ...  
   <KeyUniquenessGuarantee>...</KeyUniquenessGuarantee>  
   ...  
</DimensionAttribute>  

Element Characteristics

Characteristic	Description
Data type and length	Boolean
Default value	False
Cardinality	0-1: Optional element that can occur once and only once.

Element Relationships

Relationship	Element
Parent element	DimensionAttribute
Child elements	None

Remarks

[!INCLUDEmsCoName] [!INCLUDEssNoVersion] [!INCLUDEssASnoversion] uses the KeyUniquenessGuarantee element to optimize query construction when it retrieves members from the underlying data source for this attribute.

The element that corresponds to the parent of KeyUniquenessGuarantee in the Analysis Management Objects (AMO) object model is xref:Microsoft.AnalysisServices.DimensionAttribute.

See Also

Properties (ASSL)