Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
Returns whether a specified member is an ancestor of another specified member.
The IsAncestor function returns true if the first member specified is an ancestor of the second member specified. Otherwise, the function returns false.
The following example returns true if [Date].[Fiscal].CurrentMember is an ancestor of January 2003:
WITH MEMBER MEASURES.ISANCESTORDEMO AS
SELECT MEASURES.ISANCESTORDEMO ON 0,
[Date].[Fiscal].MEMBERS ON 1
FROM [Adventure Works]