I have a cube(multidimensional) in SSAS which contains a dimension with a period hierarchy(year, month, periodcategory, periodcode) and a measure "Amount"
Now i try to make a calculated measure which returns the value Amount for the previous month - value Amount for the current month (this will then only be different from the current amount when drilled down to month in the period hierarchy).
I read a lot of posts already about ParallelPeriod function or lag(1) but i don't see how this could help me in this case.
Any advice would be really helpful.
Related
I am trying to create a calculation measure to compare revenue from one date to last year's equivalent date.
I have this "last year's equivalent date" stored in my date dimension.
So for example, my fact table of DailySummary has a measure of TotalRevenue and it is granular by date. If I wanted to show today's revenue (12/06/2019), the equivalent date from last year that is stored in the Date dimension would be 12/07/2018. I would want to show both those day's revenue side by side. I would then create other measures, like growth.
I am sure it is obvious, but if it helps, the DailySummary fact and the Date dimension are joined by the date, so today's date, not the last year equivalent.
Let me know if this doesn't make sense or if you need more information.
I think that you will need to use the PreviousPeriod MDX function.
I have a Cube with a Date dimension hierarchy (Year,Semester,Quarter,Month,Day).
There are 2 measures available in the datawarehouse.
[AUD DLY] : Daily numbers
[AUD YTD] : Daily incremental YTD numbers
Hierarchy is as follows
Date - Dimension
Financial - Hierarchy
Year - [Date].[Financial].[Year]
Semester - [Date].[Financial].[Semester]
Quarter - [Date].[Financial].[Quarter]
Month - [Date].[Financial].[Month]
Day - [Date].[Financial].[Day]
Measures [AUD DLY]
Measures [AUD YTD]
I need to add a MTD field in the measures such that when the business select a particular date on their slicer in excel for e.g., 3 March 2016, MTD should be calculated as either of the following ways :
1) [AUD MTD] should be calculated by subtracting [AUD YTD] on
last day of previous month from the current selected date.
So if we select 3 March 2016 then
[AUD MTD] = [AUD YTD] on 3 March 2016 - [AUD YTD] on 29 Feb 2016
OR
2) [AUD MTD] should be calculated by adding the [AUD DLY] from first day
of the current month until the selected date in that month.
So if we select 3 March 2016 then
[AUD MTD] = SUM ([AUD DLY] from 1 March 2016 to 3 March 2016)
I created a New Calculated Member from Calculations tab in the Cube designer in the BIDS 2010. The MDX query is below. However when I try to browse the cube the [AUD MTD] values are only returning nulls.
Can someone please help what am I doing wrong ?
CREATE MEMBER CURRENTCUBE.[Measures].[AUD MTD]
AS Aggregate
(
PeriodsToDate
(
[Date].[Financial].[Month]
,[Date].[Financial].CurrentMember
)
,[Measures].[AUD DLY]
),
FORMAT_STRING = "Currency",
NON_EMPTY_BEHAVIOR = { [AUD DLY] },
VISIBLE = 1 , DISPLAY_FOLDER = 'AUD Values' , ASSOCIATED_MEASURE_GROUP = 'Measures' ;
Also the business would be using the new calculated measure in excel using the Slicer, they want to select any date and be able to view the MTD value for that month.
Also can someone please help with MDX query for both methods (1) and (2) ?
Your help much appreciated.
I think the problem with your quoted code (method 2) is that [Date].[Financial].CurrentMember must be at a level at or below the [Date].[Financial].[Month] level. Otherwise PeriodsToDate returns an empty set.
So the problem is not in your calculated member definition, but somewhere in the query in which it's being used. In that query, [Date].[Financial].CurrentMember may be returning a member at a level above Months. Hard to see without seeing the query itself.
Method (1) is more fiddly. You can get the last day of the previous month with
Ancestor([Date].[Financial].CurrentMember,[Date].[Financial].[Month]).PrevMember.LastChild
but you'd have to build in some logic for days in the first month of the financial year, which would otherwise subtract the value for a previous fin year from this year's YTD value. So I'd recommend method (2).
As far as I know selecting a date (I mean a date, not a month) in the Excel slicer will make that date the .CurrentMember. I'm a bit hesitant because Excel does generate some deeply bizarre MDX sometimes.
EDIT: Another possible problem is a hierarchy mismatch. You can select a perfectly good Day in a date hierarchy, but if it isn't in exactly the hierarchy you specify in your calculated member definition, you can get weird results. IMHO more recent versions of SSAS encourage a proliferation of attribute hierarchies and multiple "real" hierarchies, making this a real problem.
As a test can you please add this very simple measure to make sure that currentmember is behaving as expected:
CREATE MEMBER CURRENTCUBE.[Measures].[AUD MTD]
AS [Date].[Financial].CurrentMember.member_caption
If when you use the above all it returns is the All member then you know something is wrong.
You need to double-check your relationships and datatypes used within your date hierarchies as this is often the reason for time calculation problems.
This is an alternative to your measure but I suspect if the original script is not working then neither will this...
CREATE MEMBER CURRENTCUBE.[Measures].[AUD MTD]
AS SUM
(
MTD([Date].[Financial].CurrentMember)
, [Measures].[AUD DLY]
)
I have a Date dimension that I would like to check current month and current year, and then display a different Measure depending on that evaluation.
example:
MM - 04
YY -2016
Calculated member determines current month then for months prior(1-3) it shows measure Qty Shipped. For current month and beyond(4-12) it shows measure Forecast. This logic is only working with current year.
Thanks.
IIF(([02 Dates].[MM].currentmember,[Measures].[Qty Shipped])<
(
STRTOMEMBER('[02 Dates].[MM].&['+format(now(),'yyyy')+']&['+format(now(),'MM')+']')
,[Measures].[Qty Shipped]),
[Measures].[Qty Shipped],
[Measures].[Current Forecast])
Seems to do the Current Month on correctly, but doesn't move qty shipped to months 1-3.
Thanks
Does this logic look correct.
Any help much appreciated.
I have a fact table with payroll data and contains columns such employee id, dollars, start date & end date (pay period). So the granularity is not at the daily level. How can we add this fact table to my cube and link to date dimension? I have a date a typical date dimension in the cube with date, month, quarter and year.
note - the start and end date do not always fall on the sames days of the calendar month. I know it is terrible idea to somehow "convert" the grain to daily level by diving the dollar amounts by the number of days between start date and end date but i can't figure out another/better option.
As explained in the documentation, a relationship of a fact table/measure group to a dimension need not point to the key attribute/column of the dimension, it may point to any attribute (like the month attribute in your case). Then, you only can use the attribute that you linked to and attributes which have direct or indirect references from it. If you would have a reference from month to quarter and from quarter to year in your dimension, then the measures from your measure group referencing the month attribute can use quarter or year. But they cannot use days.
This is regarding calculating the sum for a set of values starting from the date a measure has entries till the current date.
So far what I could find was the YTD function. This limits the aggregation capability till the current date beginning from the first day of the year. But what my requirement is to start the calculation from the first value, this could be in the last year or may be two years before.
Eg:
Date-----------Value
11/9/2010-----2000
2/10/2011-----500
8/5/2011------1000
With YTD the value is: 1500
What I need is: 3500
I really appreciate any help on this.
Something like:
SUM([Date].[Day].AllMembers, [Measures].[Value])
OR
SUM(OpeningPeriod([Date].[Day]):ClosingPeriod([Date].[Day]), [Measures].[Value]),
where [Date].[Day] - it's a level DAY of your dimension;
[Measures].[Value] - your measure.