MDX Query to Produce Revenue by Top N Advertiser - ssas

I need to create a report using SSRS 2008 that will show the top 10 advertisers by revenue. I wrote the MDX query in management studio as follows:
Select [Measures].[Value] on 0,
non empty
generate([Dim Industry].[SK Industry ID],
topcount([Dim Advertiser Branch].[Advertiser],
[Measures].[Value],bdesc),10)
on 1
from FuseCube
I get a parse error stating:
Query (5, 20) An expression was expected for the function argument and no expression
was detected.
My goal is to report the top 10 Advertisers, their associated branch and industry by Value (aka revenue). The remaining ranked advertisers should go into an "others" category so that I can sum the value and get a grand total.
How should I restructure the above MDX query to produce desired results? Is it advisable to create the above query as a named set as it will be used repeatedly?

TOPCOUNT syntax incorrect:
topcount([Dim Advertiser Branch].[Advertiser], [Measures].[Value],bdesc),10)
Vs
TopCount([Dim Advertiser Branch].[Advertiser], 10, [Measures].[Value]))

Related

Generic percent of grand total MDX expression returns wrong value with filter

I have this problem to find a generic MDX expression that returns the percent of grand total regardless of the dimension that i drag in the SSAS cube browser.
Now i'm using this expression:
([Measures].[Montant], Axis(1)(0)(Axis(1)(0).Count - 1).dimension.currentmember)
/SUM(([Measures].[Montant], Axis(1)(0)))
it works fine, but when i filter on the inner item of the axis, the expression returns a wrong value
For example :
i have in my rows axis 3 items : Year > Brand > Category
The grand total is 125 for all rows:
SUM(([Measures].[Montant], Axis(1)(0)))
If i filter on the categories , the grand total changes, lets say it is equal to 65 now for the outer items of the axis. But when i drill down to see its value for the categories, i find it still equal to 125. and as a result the value of percent is wrong as well.
Can someone please help me figure out what's wrong with my MDX expression coz i've been stuck at it for too long and i don't seem to find a solution.
screenshot of cube browser
The calculated measure is "test SOB", MDX expression :
([Measures].[Montant], Axis(1)(0)(Axis(1)(0).Count - 1).dimension.currentmember)
/SUM(([Measures].[Montant], Axis(1)(0)))
the grand total is "denominateur", MDX expression:
SUM(([Measures].[Montant], Axis(1)(0)))
as you can see, the value after filtering with Onglet = "DIGITAL" is 182.50 but when I drill down the brand "Beauty" to see "denominateur" per category, i find the value 338.05 which is the value of "denominateur" before applying the filter.
I'm wondering if the use of EXISTING will enforce the filter context in your denominteur calculation?
SUM(
[Measures].[Montant],
EXISTING Axis(1).ITEM(0).ITEM(0).HIERARCHY.MEMBERS
)

MDX show all sales until now

i have a huge table of cashflows that means there are +int values for income and -int values for outcome.
I have MeasureGroup for Sum the amount of money.
I now want to display not only the sum of money per month but also the sum of all the past time until the current month so like that:
Month MoneyAmount Total
1 20 20
2 -10 10
3 5 15
4 -10 5
So i know for the first part its just like
select [Measures].[Money] on 0,
[Date].[Month].Members on 1
From MyCube
but how can i add the sum column?
i thought about something like SUM( { NULL : [Date].[Month].CurrentMember } , [Measures].[Money] ) but that didnt work as well :(
In MDX, the total is already there. You do not have to do complex calculations to get it.
But it depends on your exact hierarchy structure how the All member is called. If you have a date user hierarchy named [Date].[Date], and it has a month level named [Date].[Date].[Month], then the all member of the hierarchy would probably be called something like [Date].[Date].[All]. If [Month] is an attribute hierarchy of the Date dimension, then the "all member" would probably be called [Date].[Month].[All]. In the latter case, the all member would already be the first member of the set [Date].[Month].Members. As you are asking the question, I am assuming this is not the case, and you are using a user hierarchy. Then you could change your MDX query to
select [Measures].[Money] on 0,
Union([Date].[Month].Members, { [Date].[Date].[All] }) on 1
From MyCube
Please note that you can change the name of the All member in the property settings of a dimension when designing an Analysis Services dimension, hence I cannot know the definitive name without knowing the details of this setting in your cube. So you might have to adapt the name of the all member.
You can find this name out in SQL Server Management Studio in an MDX window as follows: open the hierarchy that you are using, and then open the "Members" node, below which you should find the "All Member". You can drag this into your MDX statement, and the proper name will appear there.
As in a running sum?
You need a calculated measure, like this:
With Member [Measures].[Running Sum] as Sum( ( [Date].[Months].Members.Item(0) : [Date].[Months].CurrentMember ), [Measures].[Money])
Select [Date].[Months].Members on Rows,
{[Measures].[Money], [Measures].[Running Sum] } on Columns
From [MyCube]

MDX ignoring Excel filter

I'm just starting to get my head around MDX and I'm having trouble with a calculated member. I'm using the following MDX:
IIF(
ISEMPTY((Axis(1).Item(0).Item(0).Dimension.CurrentMember, [Measures].[Qty]))
,NULL
,([Product].[Product Code].CurrentMember.Parent, [Measures].[Qty])
)
What I'm trying to do is get a total quantity of the group of products displayed in a cube. I then use that total to divide by each product's quantity to get a "percent of total" measure. The above MDX does correctly return the total quantity of products displayed in any dimension. However, when a user in Excel changes the filter on which products are displayed, the MDX above still displays the total quantity for the whole group, ignoring which products the user has checked. I assume I'm lacking some basic understanding of MDX, how do I get the calculated measure to account for the product codes the user has selected in Excel?
With Visual Studio SQL Server Data Tools (if you are using that tool), you can browse to your cube, select the Calculations tab, and under Calculations Tools > Templates there is a template "Percentage of Total". The MDX this tool provides is flexible so that the percentage adjusts with the attributes of the hierarchy you've pulled into the pivot.
Case
// Test to avoid division by zero.
When IsEmpty
(
[Measures].[<<Target Measure>>]
)
Then Null
Else ( [<<Target Dimension>>].[<<Target Hierarchy>>].CurrentMember,
[Measures].[<<Target Measure>>] )
/
(
// The Root function returns the (All) value for the target dimension.
Root
(
[<<Target Dimension>>]
),
[Measures].[<<Target Measure>>]
)
End
I found this option to work when developing to achieve what you've mentioned.

Access 2007 Crosstab Query Expression

Goal: to create a percentage column based off the values of calculated columns.
Here's the SQL code of the Crosstab query:
TRANSFORM Count(Master_Calendar.ID) AS CountOfID
SELECT Master_Calendar.Analyst, Count(Master_Calendar.ID) AS [Total Of ID]
FROM Master_Calendar
GROUP BY Master_Calendar.Analyst
PIVOT Master_Calendar.[Current Status];
This gives me a crosstab query that displays the amount of entries in the database that are "Completed", "In Process", or "Not Started", sorted by which Analyst they belong to.
What I'm trying to do is add another column to calculate the Percent Complete -- so (Completed / Total of ID) * 100. I tried putting that into an expression in another cell, but it returns with a "[Completed]" not found, even though it gives me it as an option in the Expression Builder.
Am I just naming my variables wrong, or is it not possible to do it this way? Can I reference the total count of the records that contain "Completed" using query code instead of finding out the value using a Pivot table?
Thanks for your help.
Try:
SELECT
xTab.Analyst,
[Completed]/([Total of ID]/100) AS [Complete%],
[In Process]/([Total of ID]/100) AS [In Process%],
[Not Started]/([Total of ID]/100) AS [Not Started%]
FROM xTab;

Filtering a Measure (or Removing Outliers)

Say I have a measure, foo, in a cube, and I have a reporting requirement that users want to see the following measures in a report:
total foo
total foo excluding instances where foo > 10
total foo excluding instances where foo > 30
What is the best way to handle this?
In the past, I have added Named Calculations which return NULL if foo > 10 or just foo otherwise.
I feel like there has to be a way to accomplish this in MDX (something like Filter([Measures].[foo], [Measures].[foo] > 10)), but I can't for the life of me figure anything out.
Any ideas?
The trick is that you need to apply the filter on your set, not on your measure.
For example, using the usual Microsoft 'warehouse and sales' demo cube, the following MDX will display the sales for all the stores where sales were greater than $2000.
SELECT Filter([Store].[Stores].[Store].members, [Unit Sales] > 2000) ON COLUMNS,
[Unit Sales] ON ROWS
FROM [Warehouse and Sales]
I met similar problem when use saiku (backend with Mondrain), as I haven't found any clear solution of "add filter on measure", I added it here, and that may be useful for other guy.
In Saiku3.8, you could add filter on UI: "column"->"filter"->"custom", then you may see a Filter MDX Expression.
Let's suppose we want clicks in Ad greater than 1000, then add the following line there:
[Measures].[clicks] > 1000
Save and close, then that filter will be valid for find elem with clicks greater than 1000.
The MDX likes below (suppose dt as dimension and clicks as measure, we want to find dt with clicks more than 1000)
WITH
SET [~ROWS] AS
Filter({[Dt].[dt].[dt].Members}, ([Measures].[clicks] > 1000))
SELECT
NON EMPTY {[Measures].[clicks]} ON COLUMNS,
NON EMPTY [~ROWS] ON ROWS
FROM [OfflineData]
i think you have two choices:
1- Add column to your fact(or view on data source view that is based on fact table)like:
case when unit_Price>2000 then 1
else 0
end as Unit_Price_Uper_Or_Under_10
and add a fictitious Dimension based on this columns value.
and add named query for New Dimension(say Range_Dimension in datasourceview :
select 1 as range
union all
select 0 as range
and after taht you cant used this filter like other dimension and attribute.
SELECT [Store].[Stores].[Store].members ON COLUMNS,
[Unit Sales] ON ROWS
FROM [Warehouse and Sales]
WHERE [Test_Dimension].[Range].&[1]
the problem is for every range you must add When condition and only if the range is static this solution is a good solution.
and for dynamic range it's better to formulate the range (based on disceretizing method )
2- add dimension with granularity near fact table based on fact table
for example if we have fact table with primary key Sale_id.we can add
dimension based on fact table with only one column sale_Id and in dimension Usage tab
we can relate this new dimension and measure group with relation type Fact and
after that in mdx we can use something like :
filter([dim Sale].[Sale Id].[Sale Id].members,[Measures].[Unit Price]>2000)