Analysis :: SSAS Design Tip To Measure Across Date Range
Jul 22, 2015
Developing a Retail cube using SSAS 2012. One of the dimension is DimCustomer with SCD type II. Each Customer can be a member or a non-member over a period of time. We have StartDt and EndDt to reflect the membership status.
eg:
Joe is a member between 06-01-2014 and 31-08-2014
Joe is a non-member between 09-01-2014 and 01-31-2015
Joe is a member between 02-01-2015 and 04-30-2015
Joe is a non-member between 05-01-2015 and 12-31-9999
Without adding fact row of Joe for each day to reflect the membership status, I want to provide the ability to measure "Active Customers Count" on a given date. There are 2 million customers in the DimCustomer Table.
we are having an existing cube in that we need to update with new measures . The Measure groups are added to the cube as linked object. so when we are updating the measure group it is throwing the exceptions as follows..“Errors in the OLAP storage engine: The metadata for the statically linked measure group, with the name of 'SalesActual', cannot be verified against the source object.”
Are Measure Expressions Supported in SSAS 2014 Standard Edition?In 2005 SSAS, I remember that Measure Expressions were not supported in the Standard Edition, only Enterprise Edition.
At the following MDX code , I want to get the aggregate of measure only for members that are also in the specified last time (like in examp 01/06/2015) . I tried existing and exists, but without any lack.
WITH MEMBER A AS (b)+(C) MEMBER [Measures].[Aggregate] AS Aggregate(DAYTIME].[Month].&[2013-01-01T00:00:00]:[DAYTIME].[Month].&[2015-06-01T00:00:00], ([Measures].[D])
As u can see there is two company references in my fact table, and the schema is in snowflake. My customer requirements state that the Contracts' amounts can be aggregated/filtered for/by, ServiceProviderCompany, its city/profession or ClientCompay, its city/profession.
First thing came in to my mind is to dublicate whole dimension structure (one for serviceproviders, one for clients), which i thought that there should be another way around?
I can pull a last processed date for the entire model: URL...That works great for showing the last time anything in the entire model was processed. It is not table specific. Updating / processing table A also changes the timestamp on tables B and C.However, if I want to look at just a specific table in the model (build a column for each fact table and a measure to go with it) I find that doing any process operation updates all the =Now() columns in all the fact tables.If I have a model with 3 fact tables and I do a process table using ProcessFull on one of them, all three tables calculated columns "LastProcessed" =NOW() are updated. URL...
Is there a way to setup a measure in the model on a per table level to show last processed date for each individual table? LastDataRefresh:= MAX ('TableA'[LastProcessed])
For example: Our sales table may update three times a day, where as our warehouse inventory table is only updated nightly.I wanted to let end users see by adding a measure for each table when the last process event was for a given table in the model.
In my cube there are two measures which are used in different calculations.Now I'm need to show in report if there any months in data when both or even another one of the measures is not updated (value = 0 or NULL).
how should I create the calculated measure for that?
I have tried in mgmt studio to plan this but I'm in a loop of errors.
I create a Dimension Date using SSAS 2008 but when i execute the dimension and i go to see the result i have this result:the result is not sorted..what i need is having the result order by year i mean i have Calendrier 2020,Calendrier 2019 ...
I have 2 tables, one is table A which stores Resources Assign to work for a certain period. The structure is as below
Name StartDate EndDate Tan 2015-04-01 08:30:00.000 2015-04-01 16:30:00.000 Max 2015-04-01 08:30:00.000 2015-04-01 16:30:00.000 Alan 2015-04-01 16:30:00.000 2015-04-02 00:30:00.000
The table B stores the item process time. The structure is as below
Item ProcessStartDate ProcessEndDate V 2015-04-01 09:30:10.000 2015-04-01 09:34:45.000 Q 2015-04-01 10:39:01.000 2015-04-01 10:41:11.000 W 2015-04-01 11:44:00.000 2015-04-01 11:46:25.000 A 2015-04-01 16:40:10.000 2015-04-01 16:42:45.000 B 2015-04-01 16:43:01.000 2015-04-01 16:45:11.000 C 2015-04-01 16:47:00.000 2015-04-01 16:49:25.000
I need to select the item which process in 2015-04-01 16:40:00 and 2015-04-01 17:30:00. Beside that I need to know how many resource is assigned to process the item in that period of time. I only has the start date is 2015-04-01 16:40:00 and end date is 2015-04-01 17:30:00. How I can select the data from both tables. There is no need for JOIN, just seperate selections.
Another item process time is in 2015-04-01 10:00:00 and 2015-04-04 11:50:59.
The result expected is
Table A
Name StartDate EndDate Alan 2015-04-01 16:30:00.000 2015-04-02 00:30:00.000
Table B
Item ProcessStartDate ProcessEndDate A 2015-04-01 16:30:10.000 2015-04-01 16:32:45.000 B 2015-04-01 16:33:01.000 2015-04-01 16:35:11.000 C 2015-04-01 16:37:00.000 2015-04-02 16:39:25.000
Scenario 2 expected result
Table A
Name StartDate EndDate Tan 2015-04-01 08:30:00.000 2015-04-01 16:30:00.000 Max 2015-04-01 08:30:00.000 2015-04-01 16:30:00.000
CREATE VIEW... Select 'Due_0-1_Month' as Ageing_Threshold union all Select 'Due_1-2_Month' union all Select 'Due_2-3_Month'
[Code] ....
I was successful in processing the cube, however the problem is everytime I drag the dimension on the columns field in Pivot tables the Thresholds start to break up the other amounts that I have on display like Acquisition Costs, Tax amounts. I am only interested in showing the breakdown of Premium amount measure by the Threshold dimension.
somehow 'Hide' or 'prevent' the Threshold dimension from breaking down the other measures on the Pivot and only breakdown the amounts for Premium?
how I should structure my tables in SQL or any MDX queries to resolve this.
The data attached below is from a Fact table. When this data is browsed in the Cube the end user is only interested in value of Measure 1 when it is not equal to zero. Measure 1 is a base measure .how to suppress the value 0 for Measure 1 in the Cube.
I'm trying to create a percentile rank function based on the standard WIKI version:
I've seen Brian Knight's article here, but that only deals with percentile.
Where I'm struggling is getting the count of members in a set using a measure, in the current context on the same hierarchy, as the filter expression. I'm using the comparative set as in belonging to the same geographical location, and therefore associating by another attribute.
So, cl as below:
MEMBER [Measures].[RegionPercentileCount] AS Count( Filter( NonEmpty( descendants(Ancestor( [Supplier].[NameMap].CurrentMember, [Supplier].[NameMap].[Region]), [Supplier].[NameMap].[Supplier Id]), [Measures].[ActiveMeasure]) , [Measures].[ActiveMeasure] < ([Supplier].[NameMap].CurrentMember, [Measures].[ActiveMeasure])))
Using the same measure and context hierarchy is always going to be equal, and therefore the count is always zero. Its almost as if I need a nested context for the FILTER which allows me to use enumerate the set on the same hierarchy whilst maintaining the external reference.
I'm thinking that perhaps I'm going to have to create another hierarchy and use that as the filter set and reference through StrToMember or similar.
I am trying to count a set as a calculated measure, when this set is called directly in the row , it returns fast, but when i try to count the set as calculated measure(so i can slice with another dimension) the query keeps running forever.
The queries are below
select {} on 0, nonempty ( {([Transaction].[RPC Count].&[1],[Transaction].[Account ID].[Account ID])} , {([Account].[PAYMENTSTATUS].&[0],[Account].[Account ID].[Account ID])} ) on 1
I have a wide fact table that I'm feeding to an SSAS cube. I was advised that splitting the measure group into two will improve performance when querying the cube.
I cannot find any documentation that supports this, in fact I get a blue curved line suggesting that I merge the measure groups since they have the same dimensionality and granularity.
I guess the best practice is what the blue line states, but without knowing the internals of SSAS I can undestand that a smaller measure group may be easier to handle, or create more specific aggregations for.
Is it possible to filter out a measure only at the intersection of Two dimension members? I have a date dimension, a Hospital dimension and a wait time measure.
For Example, is it possible to filter out Wait time for Bayside Hospital for the Month of June 2015?
I want Wait time to continue to be displayed for all other months and roll up into the totals without the filtered value.
I'm trying to show measures from 2 measures groups in a drillthrough. Obviously, it's not possible with a standard drillthrough action, but I still hope that I can somehow achieve this with the ASSP GetCustomDrillthroughMDX function.
Speaking in AdventureWorks2008R2 terms: Imagine I have a pivot table with Product Categories in filter (say, filtered on Gloves) and "Internet Sales Amount" as measure. From context menu in Excel I can call the drillthrough action which shows me the individual sales records. I would like to show in drillthrough additionally "End of Day Rate" measure from "Exchange Rates" measure group.
One option would be to join FactInternetSales with FactCurrencyRate and make EndOfDayRate a physical measure in the "Internet Sales" measure group. This is a pretty huge overhead for my scenario and I'd like to avoid this.
Another one would be to call something completely external for a drillthrough (for example, a SRRS Report).
When I am executing below MDX query, it's giving correct result with out any issue
SELECT NON EMPTY { [Measures].[Daystorecieve] , [Measures].[PO Recieved], [Measures].[Post Award Milestone PO Analysis Count], [Measures].[Powith80pct Received]
[Code] ....
After the successful execution of the above query, I am trying to filter on my measure group [Measures].
[Daystorecieve] values not equal to "0". With minimum number of the dimension selection my query executing fine.
Please find the below query.
SELECT NON EMPTY { [Measures].[Daystorecieve] , [Measures].[PO Recieved], [Measures].[Post Award Milestone PO Analysis Count], [Measures].[Powith80pct Received] } ON COLUMNS,
[Code] ....
But, when I am trying to execute with total number of dimensions. It's running long time and giving out of memory exception. Is there any way to apply where condition on my measure group like where [Measures].[Daystorecieve]<>0.
I have an issue related to SSAS security. We have an SSAS multidimensional cube which needs 3 types of security:
- Access to the entire cube => OK, based upon a role - Restricted access to one department (= dimension) => OK, based upon a role - Access to the entire cube, but with dynamic security on 2 measures.
Let's say, we have 2 departments (food and non-food). Users within food are allowed to see sales and pieces from the food department, but not from the non-food department.
It is not an option to restrict access to the non-food department because there are other measure which they have access to. I tried cell security, but this is very slow and generates multiple empty rows on my selections.
I am using the following approach to enable dynamic date calculations: [URL] ...
However, some measures I work with are percentages (not numeric values) and demand a different formula.
See example snippet bellow (first IIF statement)
/*Calendar*/ [Date Calculation].[Calculation].[Calendar Actual versus PY WK %] = IIF ( [measures].Name = "HSP2 %", -- < ThIs is where I am trying to check if the measure is a percetgae type 0, -- < When this is the case then do something different
[Code] ....
I am trying to access the metadata. I am aware of $system.mdschema_measures but I am unable to utulize this for my case.
One of my models has order data, cost per order/invoice ID and then dimensions on Fiscal Year, category, etc...the usual.
A user wanted to search it for an exact order amount. (They knew for example that one of our accounts was not balancing by single order worth $746.13 and assumed it must be an order that was placed but never marked shipped that slipped through the cracks).
Now, in the model I have "order amount" as a field and then a measure that sums that.
I could expose that "order amount" field as a label and let them filter on it in Excel (and that works).
However, I haven't had any luck filtering on the actual measure "Total Order Amount". Such as OrderID-> View Filter -> "Total Order Amount" equals 746.13.
I assume this is due to a few things:
Measure calculates at different levels so filtering on a measure is difficult as you would have to place all the "slicers" and set them first before the measure would "exist" at a level where it could be $746.13. Orders by year would have $746.13 as part of it's year sum, but wouldn't exist as a stand alone line item orders by year 2015 might be 2 million.
Orders by category might exist at 500,000, 8,000, 15,146.36, etc... but not $746.13.
So I would need OrderID on there as a column so the measure could return at the value of $746.13 for one row for it to match the filter?
Basically: 1. Why it can't really filter on a measure? 2. Is there a better way to accomplish this other than exposing the actual column in the fact table "order amount" as it feels like that could cause all kinds of confusion if other users try to slice/filter on that not realizing exactly what it is meant to be?
I am attempting to write a SQL query that retrieves info processed between two times (ie. 2:00 pm to 6:00 pm) during a date range (ie. 8/1/06 to 8/14/06)... I am new to SQL and am perplexed... I have referenced several texts, but have not found a solution. Even being pointed in the right direction would be greatly appreciated!!
