I've build a MDX calc member that give me the year-to-date (YTD) for budget, however if the user selects multiple months, it returns the total for year. Which I believe is CurrentMember function, but how do it I get the max from the set?
Aggregate(
PeriodsToDate(
[Date].[Fiscal].[Fiscal Year]
,[Date].[Fiscal].CurrentMember
)
,[Measures].[Budget]
)
So when we have a month slicer to select the month, if the end-user selects more then 1 month, then the CurrentMember fails and the parent is used, so the Full Year (FY) is used.
It might be very late to answer this question but hopefully someone else can benefit with the answer.
for this particualr problem you have to create a dynamic set and apply scope to that. check the below MDX.
dynamic set : existing PeriodsToDate(Date].[Fiscal].[Fiscal Year],[Date].
[Fiscal].CurrentMember)
calcualted member : Aggregate( PeriodsToDate( [Date].[Fiscal].[Fiscal Year]
,[Date].[Fiscal].CurrentMember
)
,[Measures].[Budget]
)
apply scope to it scope (Date].[Fiscal].[Fiscal Year],,[Measures].[Budget])
this = aggregate (([dynamic set],],[Measures].[Budget])
end scope
this way u can select a date range without any problem
Kind Regards
mah
Related
This is a question regarding SSAS Cubes, MDX formulas and Power BI.
I have a measure with the active members per each month. So when I select for example 2018 it shouldn´t aggregate but return the last available month with active members, and if I break down by month it should give the active members for each month.
So I have this formula which works almost fine if querying in MS Management Studio:
with member [Measures].[Last existing SOCIOS] AS
Max(
EXISTING [DIM FECHA].[Jerarquía].[MES NOMBRE].members,
iif([Measures].[ACTIVOS] = 0,null,
[Measures].[ACTIVOS])
)
select {[Measures].[Last existing SOCIOS]} on columns,
[DIM FECHA].[MES NOMBRE].members on rows
from [cubo_Compromisos]
where [DIM FECHA].[AÑO].&[2018]
I would prefer to have the november value returned at the 'All' level. But this is not my main problem. The real issue is that when I use this measure in Power BI it behaves differently: when selecting multiple months it ignores the selected values and just returns the last value for the whole year.
In the screenshot below I have added the value returned by the KPI Card because that is the value that I want returned:
If I select items like this it does it right, but I need it to select all months, and not just one because I am using this measure along others:
Does anyone know the right MDX function to use or an alternative?
Edited: 23-11-2018
It does the same in a Pivot Table connected to a SSAS Cube.When I add the date dimension to the table it works fine. But when using the date dimension and filtering it without the dimension added as rows it returns the value for the whole year.
The function you are looking at is LastChild. Last Child on the upper level of the hierarchy will return the value you are looking at.
I think that function can be used in the Cube design in SSAS - then this will be the standard behavior. If you want to do it with a query you need to do something like:
SELECT [Date].[Fiscal].[Fiscal Quarter].[Q1 FY 2002].LastChild ON 0
FROM [Adventure Works]
To get the last month of the 1st quater (I used example from microsoft and another post on the subject )
I've been tasked with a rather odd Time intelligence function by my finance group that I'm trying to puzzle out.
I've been asked with creating a measure within our SSAS Cube to allow for seeing previous quarter to date based on how far we are in the current quarter. But instead of seeing a standard idea of days elapsed currently versus days elapsed previously, they would like to see days remaining versus previous days remaining.
What I mean by that is, take 1/22/2015 for example. We have 48 days remaining in our current quarter, which I have by means of a calculated measure. I need to find the corresponding working day from the previous quarter where it is also at 48 days remaining.
At that point I could create a date range with some aggregate functions off of the first date in the previous quarter to the corresponding date found in the above and come up with what they are looking for.
The best idea I've had so far is to possibly do this in the database section itself, by creating a new column that is essentially the calculated number of days remaining but stored. But at that point I'm not sure how to take a calculated measure in SSAS and filter a previous quarter date member to use that property as it were.
Do you have an utility dimensions in your cube? We have one called TimeCalculations. In there we have things such as CurrentValue, MTDValue, PrevEquivMTD, Past7Days .... I think your new logic would fit in with such a dimension.
Here is an example of PrevEquivQTD against AdvWrks that I just had a play with. Guessing this doesn't really help your scenario but I had fun writing it:
WITH
SET [NonEmptyDates] AS
NonEmpty
(
[Date].[Calendar].[Date].MEMBERS
,[Measures].[Internet Sales Amount]
)
SET [LastNonEmptyDate] AS
Tail([NonEmptyDates])
SET [CurrQ] AS
Exists
(
[Date].[Calendar].[Calendar Quarter]
,[LastNonEmptyDate].Item(0)
)
MEMBER [Measures].[pos] AS
Rank
(
[LastNonEmptyDate].Item(0)
,Descendants
(
[CurrQ]
,[Date].[Calendar].[Date]
)
)
MEMBER [Measures].[PrevEquivalentQTD] AS
Sum
(
Head
(
Descendants
(
[CurrQ].ITEM(0).PrevMember
,[Date].[Calendar].[Date]
)
,[Measures].[pos]
)
,[Measures].[Internet Sales Amount]
)
SELECT
{[Measures].[pos],[Measures].[PrevEquivalentQTD]} ON 0
,[LastNonEmptyDate] ON 1
FROM
(
SELECT
[Date].[Calendar].[Date].&[20050111]
:
[Date].[Calendar].[Date].&[20080611] ON 0
FROM [Adventure Works]
);
Your Date is 1/22/2015. You want the Same Date in Previous Quarter which would be 8/22/2015.
If this is what you want, you will have to use MDX function ParallelPeriod as shown in sample below. Please replace it with your own Dimensions and Cube.
Select
ParallelPeriod
(
[Date].[Calendar Date].[Calendar Quarter], -- Level Expression
1, -- Index
[Date].[Calendar Date].[Date].&[20150122] -- Member Expression
) On 0
From [Adventure Works]
If you want the same date in the following quarter, then replace index 1 with -1.
Cheers
Trying to figure out what the default member adds to this scipt
([DateTool].[Aggregation].[Previous Month]) =
iif(
([DateTool].[Aggregation].DefaultMember, ParallelPeriod(dim_RPT_period].[Yr-Qtr-Month].[RPT Period Month],1,[dim_RPT_period].[Yr-Qtr-Month].currentmember)) = null,
NULL,
([DateTool].[Aggregation].DefaultMember,ParallelPeriod([dim_RPT_period].[Yr-Qtr-Month].[RPT Period Month],1,[dim_RPT_period].[Yr-Qtr-Month].currentmember))
);
This is from a utility dimension. Calculation script.
I get the IIF, and I get the ParallelPeriod.
But what effect does "(DefaultMember, ParallelPeriod)" have?
It looks like it used to avoid infinite recursion. This technique is used in this kind of dynamic calculations.
Let's say we run some MDX script with WHERE [DateTool].[Aggregation].[Previous Month].
Server takes this calculation from your formula (without [DateTool].[Aggregation].DefaultMember), it uses ParallelPeriod as usual, but than it needs [DateTool].[Aggregation].[Previous Month] as a part of tuple with other dimensions (our WHERE filter), so it takes from this formula again and again...
So we always need to have some fixed member to avoid infinite recursion.
That is my understanding, please correct if it's somewhere or totally wrong.
My understanding is that the calculated member is built to have values only when the slicer has any member from [dim_RPT_period].[Yr-Qtr-Month].[RPT Period Month] level. This is my opinion imitates the ISCROSSFILTERED functionality of DAX.
The member is built such that [DateTool].[Aggregation].[Previous Month] would hold value only when
the slicer has a member from [dim_RPT_period].[Yr-Qtr-Month].[RPT Period Month]
[DateTool].[Aggregation].DefaultMember is as good as [DateTool].[Aggregation].[ALL]
It is as good as leaving out [DateTool].[Aggregation] hierarchy from the query
If slicer does not have a member from [dim_RPT_period].[Yr-Qtr-Month].[RPT Period Month],
then [dim_RPT_period].[Yr-Qtr-Month].currentmember is as good as [dim_RPT_period].[Yr-Qtr-Month].[ALL]
The previous member in this case(which is returned by ParallelPeriod function) is undefined and hence, NULL would be returned.
If slicer has the member, a non null member would be returned.
To further illustrate upon this:
(Please read through the comments)
([DateTool].[Aggregation].[Previous Month]) =
iif(
(
[DateTool].[Aggregation].[ALL],
ParallelPeriod([dim_RPT_period].[Yr-Qtr-Month].[RPT Period Month],1,[dim_RPT_period].[Yr-Qtr-Month].currentmember)
) //If a member from dim_RPT_period].[Yr-Qtr-Month].[RPT Period Month] level is not in slicer then it would evaluate to NULL
= null,
NULL, //In that case the previous month should evaluate to NULL
//Otherwise, it should give the "previous month"
([DateTool].[Aggregation].[ALL],
ParallelPeriod([dim_RPT_period].[Yr-Qtr-Month].[RPT Period Month],1,[dim_RPT_period].[Yr-Qtr-Month].currentmember))
);
I have a fact table which stores for each record an init_year and end_year as integers, which refer to the year range in which the record is valid.
In which way I can design a MDX query to select my measures (count) for each year, in order to have a trend of my measures over year?
THANKS
I'm not sure this should be done in MDX.
This sort of thing is usually calculated in the fact tables (linked to a dimension table of all available years), and a new measure is created. No calculation would be done in MDX; you'd just display the new measure.
Having said that, I've just Googled "MDX count start end date" and found www.purplefrogsystems.com/blog/2013/04/mdx-between-start-date-and-end-date which suggests you use the LINKMEMBER function. Their example code was...
AGGREGATE(
{NULL:LINKMEMBER([DATE].[Calendar].CURRENTMEMBER
,[START DATE].[Calendar])}
* {LINKMEMBER([DATE].[Calendar].CURRENTMEMBER
, [END DATE].[Calendar]):NULL}
, [Measures].[Project COUNT])
...or...
AGGREGATE({NULL:[DATE].[Calendar].CURRENTMEMBER}
, [Measures].[Project COUNT])
...but it needs careful reading!
I want to create a barchart with a bar for each month and some measure.
But i also want to filter on a range of day which might not completly overlap some of the month.
When that happen I would like the aggregate count for those month to only aggregat over the days that fall in my date range not get the aggregate for the whole month.
Is that possible with MDX and if it is how should the request look like?
Create a second time dimension, using a virtual dimension of the original dimension. Use one dimension in the WHERE and another in the SELECT.
This often happens anyway if some people want 'Business Time' of quarters and periods, and others prefer months. Or if you have a financial year which runs April-April.
You can use subselect. You can find more information on this page and this page:
When a member is specified in the axis clause then that member with
its ascendants and descendants are included in the sub cube space for
the subselect; all non mentioned sibling members, in the axis or
slicer clause, and their descendants are filtered from the subspace.
This way, the space of the outer select has been limited to the
existing members in the axis clause or slicer clause, with their
ascendants and descendants as mentioned before.
Here is an example:
SELECT { [Customer].[Customer Geography].[Country].&[Australia]
, [Customer].[Customer Geography].[Country].&[United States]
} ON 1
, {[Measures].[Internet Sales Amount], [Measures].[Reseller Sales Amount]} ON 0
FROM ( SELECT {[Customer].[Customer Geography].[Country].&[Australia]
, [Customer].[State-Province].&[WA]&[US]} ON 0
FROM [Adventure Works]
)
The result will contain one row for Autralia and another one for the United States. With the subselect, I restricted the value of United Stated to the Washington state.
One way I found to do it with Mondrian is as follow
WITH MEMBER [Measures].[Units Shipped2] AS
SUM
(
{
exists([Store].[Store Country].currentmember.children,{[Store].[USA].[WA],[Store].[USA].[OR]})
},[Measures].[Units Shipped]
)
MEMBER [Measures].[Warehouse Sales2] AS
SUM
(
{
exists([Store].[Store Country].currentmember.children,{[Store].[USA].[WA],[Store].[USA].[OR]})
},[Measures].[Warehouse Sales]
)
SELECT
{[Measures].[Units Shipped2],[Measures].[Warehouse Sales2]} ON 0,
NON EMPTY [Store].[Store Country].Members on 1
FROM [Warehouse]
I am not sure if the filtering will be done in SQL like below and give good performance or be run locally
select Country, sum(unit_shipped)
where state in ('WA','OR' )
group by Country