Returns the set of child or descendent members of the given level, up to and including the given member. This function is intended primarily for use with time levels.
Example
The following query displays all quarters up to Q3 2003, within the year:
SELECT MEASURES.[%COUNT] ON 0, PERIODSTODATE(birthd.year,birthd.[Q3 2003]) ON 1 FROM patients
Patient Count
1 Q1 2003 35
2 Q2 2003 44
3 Q3 2003 43
In contrast, the following query displays all quarters up to Q3 2003, within the decade:
SELECT MEASURES.[%COUNT] ON 0, PERIODSTODATE(birthd.decade,birthd.[Q3 2003]) ON 1 FROM patients
Patient Count
1 Q1 2000 33
2 Q2 2000 33
3 Q3 2000 45
4 Q4 2000 39
5 Q1 2001 37
6 Q2 2001 40
7 Q3 2001 36
8 Q4 2001 37
9 Q1 2002 39
10 Q2 2002 35
11 Q3 2002 40
12 Q4 2002 38
13 Q1 2003 35
14 Q2 2003 44
15 Q3 2003 43
This function returns a set expression in the form of a range of members. That is, for example, the following two expressions are equivalent:
PERIODSTODATE(birthd.decade,birthd.[Q3 2003])
birthd.[Q1 2000]:birthd.[Q3 2003]