I am hoping to get some help to calculate the average between date ranges. Start date would be the time dimension and end date = start date - 13. Or is there a way we can use iff statement to calculate the average with date range?
This is AVG in MDX: https://learn.microsoft.com/en-us/sql/mdx/avg-mdx
The functions signature is this:
Avg( Set_Expression [ , Numeric_Expression ] )
So the Set_Expression will be the dates and the optional Numeric_Expression could be say a measure.
If you have a specific date such as [Ship Date].[Date].[Date].[10 Feb 2018] then you can go backwards using the lag function - then you can create a range using a colon operator.
Therefore you might end up with an expression like this:
AVG(
[Ship Date].[Date].[Date].[10 Feb 2018].lag(13)
: [Ship Date].[Date].[Date].[10 Feb 2018]
,[Measures].[Revenue]
)
So the above is not so dynamic but if the hierarchy [Ship Date].[Date].[Date] is ON ROWS then you can use the CURRENTMEMBER function:
AVG(
[Ship Date].[Date].CURRENTMEMBER.lag(13)
: [Ship Date].[Date].CURRENTMEMBER
,[Measures].[Revenue]
)
Related
I have a Cube with a Date dimension hierarchy (Calendar,Year,Month,Week,Day) and Measure as SalesData, would like to add a calculated measure which would give me the SalesData for the selected date and the last date of the Previous Month.
Calendar Hierarchy is as follows
Date - Dimension
Calendar - Hierarchy
Year - [Date].[Calendar].[Year]
Quarter - [Date].[Calendar].[Quarter]
Month - [Date].[Calendar].[Month]
Week - [Date].[Calendar].[Week]
Day - [Date].[Calendar].[Day]
Measures
[Sales]
New Calculated Member need to be created - say [SalesMTD]
Requirement is when a user select any date say 3 March 2016, the calculated member should give Sales as follows
[SalesMTD] = [Sales] on 3 March 2016 - [Sales] on 29 Feb 2016
Can someone please help me write an MDX query for the Calculated Measure ?
Your help much appreciated.
Please try the below code.
CREATE MEMBER CURRENTCUBE.[Measures].[Sales Last Month]
AS ([Date].[Months].CURRENTMEMBER.PREVMEMBER, [Measures].[sales])
, VISIBLE = 1 ;
Then write another calculation using the above calculations
CREATE MEMBER CURRENTCUBE.[Measures].[Sales Difference]
AS ([Measures].[Revenue]-[Measures].[Sales Last Month])
, VISIBLE = 1 ;
with member measures.SalesDataLastDaylasMonth
as
[Date].[Calendar].currentmember.firstsibling.lag(1)
//or [Date].[Calendar].currentmember.firstsibling.prevmember
select {measures.SalesData, measures.SalesDataLastDaylasMonth} on 0,
[Date].[Calendar].[Day].members on 1
from [Some Cube]
Here currentmember.firstsibling.prevmember fetches the member prior to the first day in the list of days in the current month.
Also, you can obviously create this member in a cube instead of having it query scoped like this. The syntax would be similar to the above answer.
Based upon your edit
There are multiple ways of getting to it. Below are some:
with member Measures.[SalesMTD]
as
Measures.[Sales]
-
(Measures.[Sales],Ancestor([Date].[Calendar].currentmember, [Date].[Calendar].[Month]).firstchild.firstchild)
//(Measures.[Sales],[Date].[Calendar].currentmember.parent.parent.firstchild.firstchild.lag(1))
//(Measures.[Sales],[Date].[Calendar].currentmember.parent.parent.firstchild.firstchild.prevmember)
select Measures.[SalesMTD] on 0,
[Date].[Calendar].[Day].members on 1
from [Some Cube]
The first approach is the neatest.
We want to show current periods sales versus previous period sales.
To show the previous period we make use of a date dimenion table and the following calculation:
CALCULATE(SalesValueGross; DATEADD(Date[Date]; -1; YEAR))
Unfortunately somehow it shows minor (decimal) differences when comparing years.
The difference get's bigger when we slice to months.
Another issue we have is that this calculation does not seem to work when comparing (for example) week 1 - 2015 with week 1 - 2014.
Any help is greatly appreciated!
When I want to get prior calendar year sales, I use the a formula such as the following:
Cal Prior Yr Sales:=if(HASONEVALUE('Sale Date'[Calendar Year]),
Calculate([Total Sales],
PREVIOUSYEAR('Sale Date'[Date])),BLANK())
The HASONEVALUE just ensures that there is only one year selected so it will know the correct previous year to retrieve.
You can make a series of calculations that will let you use one calc that determines what level of the date hierarchy you are in (assuming you have the fields available in your date table). Here is something I've used in the past, with a fiscal calendar that was different from the normal calendar.
First, the base calculations:
Sales Same Week Prior Year:=
CALCULATE([Total Sales],Filter(All('Sale Date'),
'Sale Date'[Week Key] = max('Sale Date'[Same Week Last Year])))
Sales Same Month Prior Year:=CALCULATE([Total Sales], Filter(All('Sale Date'),
'Sale Date'[Month Seq] = max('Sale Date'[Month Seq])-12))
Sales Same Quarter Prior Year:=CALCULATE([Total Sales], Filter(All('Sale Date'),
'Sale Date'[Quarter Seq] = max('Sale Date'[Quarter Seq])-4))
Sales Prior Year:=CALCULATE([Total Sales], Filter(All('Sale Date'),
'Sale Date'[Fiscal Year] = max('Sale Date'[Fiscal Year])-1))
You can hide all of those calculations and then create one last calculation and leave it visible:
Sales Same Period Last Year:=
if(HASONEVALUE('Sale Date'[Week Key]), [Sales Same Week Prior Year],
if(HASONEVALUE('Sale Date'[Month Key]),[Sales Same Month Prior Year],
if(HASONEVALUE('Sale Date'[Quarter Key]),[Sales Same Quarter Prior Year],
if(HASONEVALUE('Sale Date'[Fiscal Year]), [Sales Prior Year], BLANK()))))
You may need to add a couple of calculated fields to your date table to make it work. I have fields for: [Same Week Last Year], [Month Seq], [Quarter Seq]. Same week last year is an integer field that is yyyyww. Month Seq and Quarter Seq are just autoincrementing integers in chronological order that do not repeat.
My formula for same week last year is
=if('Sale Date'[Week Nbr] = 53, (('Sale Date'[Fiscal Year]-1) * 100) + ([Week Nbr]-1),
(('Sale Date'[Fiscal Year]-1) * 100) + ([Week Nbr]))
I did the sequence numbers in my SQL view, which is the source for the date date. As an example, if my date table starts at 1/1/2010, the month seq for Jan 2010 is 1 and the month seq for Jan 2011 is 13. The quarter seq for Q1 2010 is 1 and the quarter seq for Q1 2012 is 9.
http://www.daxpatterns.com/time-patterns/ is a good read for this topic.
I am trying to convert some T-SQL queries into MDX:
I require the first date of the Current Quarter for our reporting solution.
Within the cube we have a dynamic 'Current Quarter' flag
This seems like a simple problem but it has caused me no end of issues. I've managed to isolate the correct date but with the query below but in SSRS I get an error that states 'The default value for StartDate is not the expected type' i.e. it is not in DateTime format. This leads me to believe it is being passed as a string
How do I modify the following query to pass the StartDate as a DateTime and not a string?
The second piece of code is a secondary attempt at the same thing except I get the first value of the entire Date dimension (1900-01-01) instead of the first day of the current quarter.
First attempt:
SELECT
NON EMPTY
{} ON COLUMNS,
HEAD(
[Date Lead Date].[Calendar Date].[Calendar Date]
,1) ON ROWS
FROM [Leads]
WHERE [Date Lead Date].[Current Quarter Flag].&[1]
Second attempt (produces 1900-01-01):
WITH
Member [Measures].[StartDate] AS
HEAD(
[Date Lead Date].[Calendar Date].[Calendar Date]
,1).ITEM(0).ITEM(0).NAME
SELECT
NON EMPTY
[Measures].[StartDate] ON COLUMNS
FROM [Leads]
WHERE [Date Lead Date].[Current Quarter Flag].&[1]
Untested but I'm wondering if this works?
WITH
Member [Measures].[StartDate] AS
[Date Lead Date].[Calendar Date].CURRENTMEMBER.MEMBER_VALUE
SELECT
NON EMPTY
{[Measures].[StartDate]} ON COLUMNS,
HEAD(
[Date Lead Date].[Calendar Date].[Calendar Date]
,1) ON ROWS
FROM [Leads]
WHERE [Date Lead Date].[Current Quarter Flag].&[1]
I need to create a calculated member that calculates revenue for TTM (Trailing Twelve Months) associated to selected date (day level).
I tried something like this:
SUM(
{
[Accounting Effective Date].[Date Hierarchy].CurrentMember.Lag(365)
: [Accounting Effective Date].[Date Hierarchy].CurrentMember
},
[Measures].[Revenue]
)
But this doesn't work with leap year, for example if I pick 2013-01-01 than it returns 2012-01-02.
I have also tried this but this one is also not good since it takes first day of the month:
SUM(
{
[Accounting Effective Date].[Date Hierarchy].CurrentMember.Parent.Lag(12).FirstChild
: [Accounting Effective Date].[Date Hierarchy].CurrentMember
},
[Measures].[Revenue]
)
Date hierarhy is following:
Year > Quarter > Month > Date
the following query can help, it uses cousin function to return last years date.
with member [Measures].[TestValue] as
(cousin([Date].[Calendar].currentmember,[Date].[Calendar].currentmember.parent.parent.lag(1)),[Measures].[Internet Sales Amount])
member [Measures].[TestDate] as
cousin([Date].[Calendar].currentmember,[Date].[Calendar].currentmember.parent.parent.lag(1)).item(0).name
select
{[Measures].[Internet Sales Amount],[Measures].[TestValue],[Measures].[TestDate]}
on columns,
{
[Date].[Calendar].[Date].&[20130922]
}
on rows from
[adventure works]
I have little thing about MDX.
Is there any way to get current year from the system/server with MDX query?
I didn't have any dimension related to date or something like that.
Regards.
Create a member and define it as 'YEAR(NOW())'
Member [Measures].[Current Year] as 'YEAR(NOW())'
Here is a more complete sample
-- The First Calculated member is the value of NOW()
WITH MEMBER [Measures].[Full Date] as 'NOW()'
-- The Second Calculated Member is the Day part of the first calculated member.
MEMBER [Measures].[What Day] as 'DAY([Full Date])'
-- The Third Calculated Member is the Month part of the first calculated member.
MEMBER [Measures].[What Month] as 'MONTH([Full Date])'
-- The Fourth Calculated Member is the Year part of the first calculated member.
Member [Measures].[What Year] as 'YEAR([Full Date])'
SELECT
{[Full Date],[What Day],[What Month],[What Year]} ON COLUMNS
FROM [Your Cube]