Accessing Descendant Members
You can use the DESCENDANTS function to obtain descendents of a given member, within one or more lower levels. For example, the following query gets all the descendents of the year 1990, within the [BirthD].[H1].[Period] level:
SELECT DESCENDANTS(birthd.1990,birthd.period) ON 1 FROM demomdx
1 Jan-1990 *
2 Feb-1990 2
3 Mar-1990 1
4 Apr-1990 1
5 May-1990 1
6 Jun-1990 *
7 Jul-1990 2
8 Aug-1990 2
9 Sep-1990 1
10 Oct-1990 3
11 Nov-1990 1
12 Dec-1990 *
The DESCENDANTS function provides many options for accessing descendents within different parts of the hierarchy, but the preceding usage is the most common scenario.
