Analysis :: How To Create MOLAP / ROLAP And HOLAP Cube
Aug 11, 2015creating MOLAP, ROLAP and HOLAP cubes... I'm looking for detailed steps involved.I'm using MS-SQL Server 2014.
View 2 Replies
ADVERTISEMENT
Confustion On ROLAP And MOLAP And HOLAP Modes
May 24, 2007Hi, all experts here,
Thank you very much for your kind attention.
I am having a question on ROLAP and MOLAP storage modes. In ROLAP mode, we store all data in source relational databases and though then we can gain near real-time data for the queries. But with MOLAP and Proactive caching, we can solve this problem by setting update notifications to the MOLAP cubes. Also, with HOLAP, we can combine ROLAP and MOLAP (store leaf data in source relational database, while aggregations in MOLAP format), thus we can actually get the near real-time data for the queries as well once there is any changes to the underlying source relational database.
I am just a bit confused about the distinct benefts we can differenciate between these aspects regarding MOLAP with proactive caching and HOLAP. (not convinced about the reason to use ROLAP storage mode).
I hope my question is clear for your help and thanks a lot in advance for your advices and help for that and I am looking forward to hearing from you shortly.
With best regards,
Yours sincerely,
Analysis :: Create Cube With 2 Table
May 6, 2015i want to create cube withe 2 fact tables. is it possible?? if it is could you show me how !!
View 2 Replies View RelatedAnalysis :: Grand Totals Not Adding Up In Power View On Molap Cubes?
Nov 12, 2015My Power view reports do not show the grand totals correctly. I think my issue relates perfectly to [URL]. However we have updated service pack 2 on both the sql data warehouse and the ssas box. They are 2012. However the power view is still incorrect. Pivot tables seem to work just fine. In AS I have a 2 separate measure groups that has a total count. I then use mdx to bring those two together. Something I have done many times in past with as 2008. My mdx looks like this below. I then hide Total Count EC (from measure group 1) and Total Count SF (from measure group 2). This way I have 1 total count value and they can use another dimension to see the two separate if needed.
CREATE
MEMBERCURRENTCUBE.MEASURES.[Total
Count New] AS
//
([Measures].[Total Count] + [Measures].[Total Count SF]),
DISPLAY_FOLDER
=
'Totals',
ASSOCIATED_MEASURE_GROUP=
'Report',
FORMAT_STRING
=
"#,#0",
VISIBLE=
1;
The measure Total Count EC works just fine but the Total Count (MDX) does not . All in Power Pivot works fine but in Power View the grand totals are not correct.
Is It Possible To Create Cube File Without Microsoft Analysis Services
Aug 11, 2004Can I create a cube file, .cub ,without the Microsoft Analysis Services
Pls Guide me as I am new in this field.
Thanks
Loyd
MDX In Analysis Services: Create A Cube-Based Hierarchichal Picklist
Feb 7, 2008Mr. Pearson,
I am currently reading your article titled, "MDX in Analysis Services: Create a Cube-Based Hierarchical Picklist". This article is directly applicable to a problem we are currently trying to solve regarding ragged hierarchies as input parameters.
I have not read the entire article through but am in the process of doing so. Also, I will be trying to implement your solution.
I have one question, will SSRS support multi selection when using a hierarchical picklist? Thanks in advance for any assistance.
Analysis :: Change Dimension Storage Type As Real-time Rolap But Error Occurs?
Jul 7, 2015I Create a measure group and two dimensions using [AdventureWorksDW2012], I try to change one dimension's storage mode with setting property proactive caching as Real-Time ROlap. There is no any warning message when deploying and processing, but error occurs when I query in sql server analysis services, see below for the error messages and the screen capture.
Error occurred retrieving child nodes: the current operation was cancelled because another operation in the transaction failed.
Analysis :: Proactive Caching On Rolap Dimension - Constant Change Notification On Source Table
Aug 20, 2011I have SSAS 2008 Enterprise sp2 (not R2) running on a production server. One of the dimensions is defined as real-time Rolap - set to clear the cache whenever the table changes.
I placed triggers on that table to be sure, so I know no changes occur on that table sometimes for 10 or 15 minutes at a time - and yet I get 100's of change notifications (I noticed them on a profiler session). It seems as though the notifications come as often as the dimension gets queried.
I think this is causing one of my longer running queries to fail because of locking issues. I assume this is because the queries are getting killed when they're in middle of using an outdated cache.
The strange thing is that I cannot reproduce this on the dev servers. The main difference between the dev and production servers is that the production servers are behinfd a cluster. I don't know if that could make any difference.
I really need to know why I'm getting so many notifications.
Analysis :: Creating Cube With AMO - Cube Has No Measure Groups?
May 19, 2015I have problems creating a cube with AMO.
I can add the cube to the database object and fill it with dimensions and a measuregroup (see code below).
If I call cube.Update() it says something like "Error in meta data manager. Cube has no measuregroups." (getting the message in german language)
The error in Microsoft.AnalysisServices.OperationException.Results.Messages is -1055653629
I can't find any documentation about this (or any other) error code in Microsoft documentation.
Here's my Code:
Cube newCube = database.Cubes.Add("MyCube","MyCube");
newCube.Language = 1031;
newCube.Collation = "Latin1_General_CI_AS";
CubeDimension dim = newCube.Dimensions.Add("dim1","dim1","dim1");
CubeAttribute attrib = dim.Attributes.Find("dim1Attr1");
[code]....
Analysis :: Cube Needs To Be Deployed From VS After SSIS Analysis Services Processing Task Completes?
May 13, 2014I have a cube that we are processing nightly via an Analysis Service Processing Task in SSIS. In order to increase the performance of the processing time, we elected to use a lot of rigid dimension attributes, and do a full process of everything in the SSIS task. The issue that I am having is that after that task completes, I need to go into Visual Studio to deploy the cube becuase we are unable to browse or use the cube. This issue seemed to start once we changed the SSIS Analysis Service Processing Task to do a full process on the dimensions, rather than an incremental.
I would expect that once development is done, and it is processed and deployed, that is it. My thinking is that the SSIS task should just update the already deployed cube,
Opinion On Cube Analysis
Feb 7, 2008Hi,
I was talking to my boss to day and our report request are not very consistant. We always having someone coming back to change something in our report. We were thinking of useing something called the Cube Analysis. Then it give our employees the raw data for them to run any standard query for themself. We have folks that want a report one way, but then they changed their minds and we are creating yet another report 4 or 5 times. what are your thoughts about this type of database?
Analysis :: Create Analysis Services Project In Visual Studio 2012 Data Tools?
Feb 18, 2013It is possible to create Analysis Services project (*.dwproj) in Visual Studio 2012 Data Tools?
View 5 Replies View RelatedAnalysis Services: Deploy A Cube
Jun 21, 2007I'm making my first attempt at creating a cube using Analysis Services based on my exisiting datamart. Datasource, views, and dimensions have been defined. But comes deploying the cube, it's giving the error saying "A connection cannot be made. Ensure that the server is running." The Deploy Target server and database are the same where my datamart is. Or, maybe I don't know what I'm doing.
Would appreciate any suggestion for my enlightenment. Thanks
Analysis Services Hiearchy Cube
Jun 30, 2007I setup Hiarchy in the dimentions of my cube, however when I go and look at it via proclarity, I can't see the hiearchy there.
I have one table that has:
Category
Subcategory
Partnumber
And I have the hiearchy set from Subcategory to partnumber.
Then I go into proclarity and limit the category by "my catname" and I still see the 8000 partnumbers in the list.
Any ideas?
Q: Analysis Services Cube Design
Jul 20, 2005I have a (hopefully typical) problem when it comes to cube design. Westore millions of product records every year, broken down bymonth/quarter. Each product can be assigned to various heirarchialclassification groups etc. The data in an OLTP DB occupies roughly100G for a typical year.We're looking at breaking this out into OLAP to provide faster accessto the data in various configurations and groupings. This is not aproblem, as this is the intended use for Analysis Services.The problem is that we apply projection factors on the product pricesand quantities. This would be ok if it only happened once, however,this happens every quarter (don't ask why). The projection factorschange 4 times a year, and they affect all historical product records.This presents a challenge because to aggregate the data into a usefulconfiguration in the cubes, you throw out the detail data, but thismeans throwing out the price and quantities which are needed to applythe projection.So if you have Product A at $10 and Product B at $20, and roll both upinto Category X, you'll have $30, but you'll lose the ability to applya projection factor of .5 to Product A and .78 to Product B. They'rerolled up.I don't want to regenerate the cubes every 3 months. That's absurd.But we can't live without the ability of projection theprices/quantities on a product level (detail level). So how can thisbe achieved when the other cubes are created at a higher level withless details and sums of the detail data?My initial guess is that we have to update the product data, and thenreaggregate all the other data that is built upon that product data.Is there any other way to apply math to the data on the way out?Thanks in advance!Regards,Zach
View 2 Replies View RelatedAnalysis :: Using Calculations In SSAS Cube?
May 21, 2015how can use this mdx script in the calculation part of a cube, will i simply dump it in the script form by starting with the 'create member current cube.
[measures].[test]'
select
[measures].[abc] on 0,
[xyz].[xyz].(&0):[xyz].[xyz].(&60) on 1
from
(
select
(tail([month].[month].[month].members,6))on 0
from
[cube])
Analysis :: Measure Value Needs To Be Manipulated In Cube
May 18, 2015The 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.
DimesionKey1
DimensionKey2
DimensionKey3
Measure 1
Measure 2
Measure 3
[code]...
Analysis :: How Is Cube Physically Stored
Nov 23, 2015I know where the data files are etc, but what is the physical structure of a cube like on disk?
Logically we see the data as a star. Is the physical file akin to a star also? Or is a single file a measure group containing all the required member and measure data - thereby eliminating the need for physical join operators.
Analysis :: Implement Security In Cube
Oct 14, 2015I am planning to implement the security in my cube..
Total sales is 1000..
Customer Sales
A 100
B 200
C 300
D 400
Total Sales 1000
When i want to give access to the customer A, he can capabule of viewing only A value 100... But the problem is A is able to see total sales 1000.. How can i restrict the sales a value to 100 in the cube.. Where i have to set the property to fix this issue.....
Analysis :: Only One Fact Table Per Cube?
Nov 22, 2015Is it correct to say that for each cube you can have only one Fact Table? I am having a funny dispute just now.
According my experience I never built cubes with more than one fact table, if I want take data from more than one table I write a view and I use it as Fact table...but a cube with two or three fact tables? Never tried..
Analysis :: Distinct Count On Cube
Jun 12, 2006i am currently trying to build a distinct count on my cube (mssql2005 analysis services).But after i added the discount count on the field i want to and start the processing, the following errors appear.Errors in the OLAP storage engine: The sort order specified for distinct count records is incorrect.
View 17 Replies View RelatedAnalysis :: Cube XML Is Different Than Design View
Aug 4, 2015I have a cube. Its xml is different at some point than its design view. Suppose for some dimension and its attributes, source table is different than what it showing in the properties window for them..
Is this possible? How to read cube xml because there are repeating tags in it. There are two type if dimension tags.. one has only attributed and other has all properties.
Analysis :: More Than One Cube In One SSAS Database
Dec 13, 2010Is it possible to have more than one cube under one SSAS database? For example I have a database "Test" and in this the cube exist is "TestCube", is iit possible to deploy another cube "TestCube2" under the Test databse?
If yes then what is the process to do that, the reason I am asing is there are some common dimensions used n both the cubes and I am not sure what is the best way so that I can use the shared dimension?
Analysis :: Cube Attributes Translations
Nov 3, 2015How can we select translated text of cube translations, like measures, dimensions, dimension attributes. I have below query which return translations of dimension attribute's memebers
WITH
MEMBER Measures.CategoryCaption AS Product.Category.CurrentMember.MEMBER_CAPTION
MEMBER Measures.SpanishCategoryCaption AS Product.Category.CurrentMember.Properties("LCID3082")
MEMBER Measures.FrenchCategoryCaption AS Product.Category.CurrentMember.Properties("LCID1036")
SELECT
{ Measures.CategoryCaption, Measures.SpanishCategoryCaption, Measures.FrenchCategoryCaption } ON 0
,[Product].[Category].MEMBERS ON 1
FROM [Adventure Works]
I am getting translations of product category members but I want to get translated text of "Category"?
Analysis Services Help - Dim Builds, But Cube Fails.
Dec 8, 2005If there are any AS gurus out there, I could use some help. I've been having some problems with particular AS dimension and cubes and it's driving me crazy! It doesn't matter what I do, nothing seems to work.
Anyway, here's what I'm trying to do. I've got a fairly simple dimension. There is a date stored in the dimension that is formatted as an int. The dimension needs to only display AGE, so I cast the int as a date and do a datediff to get AGE. The dimension builds just fine and I get the results I want. My problem is when I add the dimension to the cube. The cube fails to build and I get an error message - "Data source provider error: The column prefix 'MY TABLE' does not match with a table name or alias used in the query." Basically, AS is telling me that the table that is used for the dimension doesn't exist, even though the fact and the dimension are joined properly and I've validated the structure.
I've run a number of queries in QA on the two tables and everything works fine. No funky data issues. I've run the service packs a few times, but that didn't work either. I've tried making a cube that only has the just fact table and the one dimension table, and it still fails.
Basically, I'm out of ideas. Any help that anyone has is greatly appreciated.
Analysis :: AttributeKey Not Found When Processing The Cube
Apr 21, 2015I have designed a cube. It has two fact tables and some dimensions. Fact table to fact table is many to many relationship.
For example
FactMain
DataKey(PK), StartDateKey, PostCodeKey, TotalCost
FactBridge
DataKey(FK), ProductKey(FK), Position - PrimaryKey on DataKey + ProductKey + Position
DimProduct
ProductKey(PK), ProductCode
Cube is built successfully, processed successfully.When I try to process the cube from agent job, I am getting error "Attribute key not found: tablename, value..." I have added a job step to run AnalysisServices Command. I have taken the command from cube process script(taken from manually process the cube and take script generated). I used ProcessAffectedObjects = "true" in the script. When I checked the tables, the key does exist. Why am I getting this error?
Analysis :: Deploy Cube Without Overwriting Database
Jun 30, 2015I have a TEST database which contains 1 cube.
I have created another cube and I want to add this cube to the TEST database also.
However when I deploy the cube it overwrites the database with the new cube and the old cube is gone.
How can I have the 2 cubes within the TEST database.
Analysis :: Add Population Data In SSAS Cube
Aug 7, 2015I want to implement population data in sales cube.
Fact table has customer code which is foreign key of Customer master dimension which in turn is linked to census data dimension. Census data dimension have city wise population data having foreign keys of zone and state.
We want to add population data in fact table.
Analysis :: How To Update Cube To Get MDX Working Fine
Oct 5, 2015I have been trying to get the ValueR column of the following query through the MDX but instead getting ValueW as output of the MDX
select
exp(Log(sum(MTMROR)+ 1 ))-1 as ValueW,
exp(sum(Log(MTMROR + 1)))-1 as ValueR
from
Temp_Performance
where Rundate in ('2015-03-01','2015-03-02')
MDX written for the above query is
With
Member [Measures].[LogValuePre]
as ([Measures].[MTMROR] + 1)
Member [Measures].[LogValuePre1]
as VBA
[Code] ...
[MTMROR] measure has the aggregate function Sum. What i can get from this behavior is MDX is first aggregating the result and default aggregation function is Sum. When i try to see the value with more granular data by having the date dimensions on the row (un-commenting the date dimension) i get the correct log and exp log values. Its showing the correct value as date dimension is most granular level in the fact table. While trying to get the data at less granular level(Fund level), getting the sum function applied automatically.
If i set AggregateFunction to none in the cube structure, i get null as the output.
How could i apply the log function before the sum function in the [MTMROR] measure?
Analysis :: Cube Restoration In Different Storage Location
Aug 6, 2015I am in process of automating a cube migration from SSMS 2008 to SSMS 2012.
In this process iam deleting the existing cube databases and restoring them on a different location on the same server.
When i try to execute the restore command or restore using UI i get a wierd error message like this below:
"TITLE: Microsoft SQL Server Management Studio
------------------------------
File system error: The following error occurred while opening the file 'DrivePath3F9D4D128D5E417FA6F2[CUBEDBNamepath].fact.map'.
Server: The current operation was cancelled because another operation in the transaction failed.
(Microsoft.AnalysisServices)
[Code] ....
Analysis :: ABF File - Restoring SSAS Cube
Oct 25, 2010I have a .abf file, which I am attempting to restore. I go to Management Studio and attempt to restore the cube.
However, whenever I attempt to restore the following error message occurs:
"File 'C:/.......' specified in restore command is damaged or is not an AS backup file.
The following error occured:
Access is denied (Microsoft SQL Server 2008 R2 Analysis Services)
Analysis :: How To Print Dimension Usages For Any CUBE
May 5, 2015Best way to print Dimension Usages with Measure Group for any CUBE.
This actually facilitate business people to understand which dimensions mapped to which measure group.
Analysis :: Deploying SSAS Cube With Different Name On Same Server
Jun 21, 2013How can i deploy an existing cube with a new name on the same server?
View 4 Replies View Related