The Attribute Key Cannot Be Found When Trying To Process Mining Structure
Oct 29, 2007
Hi,
I know, this is a common OLAP Error, but In fact I'm having trouble with this while trying to process a DM Mining Structure.
I'm currently working on a website that gets data from its users and analyzes it using SSAS. The thing is each time we add a new "analysis criterium" (sorry I'm trying to translate our french BI language in English...), we have to build a new mining structure, which needs data about users who have actually answered the question associated with this criterium. Some times, there are thousands, and some other only dozens, which is the case for the structure I'm having trouble with.
I got only 2 hundred tuples in the learning set. So lots of the common criteria weren't filled: I removed them using a stored procedure before feeding the structure, so that I got no column with only "null" values.
Of course, I know that 200 learning cases is really not enough to build an accurate model, but the purpose was just a proof of concept for machine driven Mining Structure building, and that was supposed to work even with so few cases.
When I process the MS, it fires: (Sorry it's in french, translation follows)
Erreurs dans le moteur de stockage OLAP : La clé d'attribut est introuvable : Table : _x0032_0_EtudeIphone_Apprentissage, Colonne : EtudeIphone, Valeur : le nouvel iPhone (téléphone tactile et musical dApple). Erreurs dans le moteur de stockage OLAP : La clé d'attribut a été convertie en un membre inconnu parce que cette dernière est introuvable. Attribut Id de la dimension : 20_EtudeIPhone ~MC-Id de la base de données : ClassificationVDCE, Enregistrement : 2.
Badly translated it says "Errors in OLAP Storage Engine: Attribute Key not found Table:<StrangeTable> Column <MyPredictableColumn> Value <OneOfTheInterestingValues>
Errors in OLAP Storage Engine: Attribute key not found: converted to an unknown member. Attribute Id from dimension..."
Why? Too few cases? I have structures based on the same template but associated with other criteria and they work perfectly.
I'm ready to answer any question, and give any detail.
Thanks in advance.
François JEHL
IT Consultant
Winwise - Paris
PS: Of course, my "Id' column is unique....
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Dec 6, 2007
Hi everyone,
I posted a related thread before about this error below when I process a dimension. And seems that the solution by using "ClearCache" can not fingure out the issue when I want to process a mining structure...... .
OLE DB error: OLE DB or ODBC error: There is not enough procedure cache to run this procedure, trigger, or SQL batch. Retry later, or ask your SA to reconfigure SQL Server with more procedure cache.
; Sort failed because there is insufficient procedure cache for the configured number of sort buffers. Please retry the query after configuring lesser number of sort buffers.
Could someone please give me some suggestions?
Your help will be very appreciated:-)
Thanks^_^
Winnie
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Oct 18, 2006
Dear friends,
I encounter a serious problem.
I would like to develop an application that can create Data Mining structures and a mining model in SQL Server 2005 with VB.NET. I tried the code from book Data Mining with SQL server 2005 in chapter 14 but did not work. Any good idea?
Please help me.
Best regards,
Manolis
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Oct 20, 2006
Thank you very much for your help.
The errors that I can see in the code that you gave in your answer are the following and they are more or less the same as I had previously
I tried the code but initially I have encounter the following problems.
1. In any line that have the declaration As Server, As Database like in
Public Function CreateDatabase(ByVal srv As Server, ByVal databaseName As String) As Database gives me the problem that type Database is not declared the same type Server is not declared and it does not give me any option.
2. In addition to that for As DataSource, As RelationalDataSource, As RelationalDataSourceView, As ScalarMiningStructureColumn, As DataSourceViewBinding, gives me the problem that type is not declared.
3. Finally in mc = New MiningModelColumn("Yearly income", Utils.GetSyntacticallyValidID("Yearly income", Type.GetType(MiningModelColumn))) is not accesible in this context because it is 'Private'.
I have some more problems but I thing that by solving the above that I referred I will solve the rest.
Thank you any way.
Best regards,
Manolis
PhD student
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Jul 18, 2006
I perform data mining on all products and a specific product category.
Do I need to create 2 data source views, one for all products and the other one for the specific product category?
Afterward, I run the Data Mining Wizard 2 times to create 2 mining structures.
I also need to add the same mining model (e.g. Bayes, Cluster) to each of these mining structures.
Is there any simple way to do it?
Thanks.
Joe.
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Nov 27, 2006
Hi ,all here,
Thank you very much for your kind attention.
I just found that I am not able to view the accuracy chart for my mining model. The error message is: no mining models are selected for comparision. Which is quite strange.
Any guidance? thank you very much.
With best regards,
Yours sincerely,
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May 31, 2006
Hoping someone will have a solution for this error
Errors in the metadata manager. The data type of the '~CaseDetail ~MG-Fact Voic~6' measure must be the same as its source data type. This is because the aggregate function is not set to count or distinct count.
Is the problem due to the data type of the column used in the mining structure is Long, and the underlying field in the cube has a type of BigInt,or am I barking up the wrong tree?
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Apr 30, 2015
I'm a beginner with SQL 2012 SSDT & SSMS. I get this error message when I try to deploy my project:
"Error 6
Error (Data mining): KEY SEQUENCE columns are not supported at the case level. The 'Customer Key' column of the 'TK448 Ch09 Cube Clustering' mining structure contains content that is not valid.
0 0
"
I am finding it hard to locate the content that is not valid. I've been trying to find a answer for this problem but can't seem to find anything. How can I locate the content that is not valid and change or delete it so that I can deploy this solution?
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Sep 29, 2015
I followed the tutorial posted at [URL] ...
Everything was ok until the last step where I had to process the mining structure which resulted in a warning
"Informational (Data mining): Decision Trees found no splits for model, Tbl Decision Tree Example."
What does this error mean? How do I resolve it? Also, I only see the first level in the Mining Model Viewer, I don't see the levels 2 and 3.
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Jun 3, 2007
Hello !
Can somebody help me with the following error while deploying my cube:
The attribute key cannot be found : dbo_fact_table, Column: datetime Value 25/10/1901 4:18:00 pm...
The year 1901 is included in the time period of the time dimension.
The calendar includes the following dates :
1/1/1753 - 31/12/2007 (Time binding)
Why this referential integrity error occurs ??
Please help me because it is urgent and I cannot find a solution..
Thanks
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Jul 10, 2007
Hi, all,
Why I got different results for the same attribute value displayed in my mining model? Any suggestions on what I may have missed for that?
In my case, the mining structure is with case table which is the fact table, within this mining structure, I dragged other attributes from its related dimensional tables as well. E.g The schema of the mining structure is as below:
.........................................................................................
Fact events key (key of the case fact table)
Agent type (attribute dragged from its related dimension table, which is not the key attribute of that dimension table)
Agent level (attribute dragged from its related dimension table, and it is not the key attribute of that dimension table as well)
......and other attributes dragged from its related dimension tables.
.......................................................................................
Then in my training model (using Microsoft Clustering algorithm), the content contained within the training model is very strange, e.g there are different results for the same value of attribute 'Agent Level' . Why did that happen and how can I figure it out? There should only one result for each value of each attribute within one mining model?
Please shed me some light on this issue and I am looking forward to hearing from you shortly for your kind advices and thanks a lot in advance.
With best regards,
Yours sincerely,
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Jan 6, 2007
I'm trying to build a association model in the Standard Edition based on an existing cube. I keep getting the error:
Error (Data mining): The 'Product Recommendations' mining model has 60385 attributes. This number of attributes exceeds the attribute limit of 5000 allowed by the current version of the algorithm associated with the mining model.
I created Cube Slice filters and those limit the Customer and Product dimensions (Product is Nested) to well under 5000. The error message also does not change. The number of attributes is equal to the number of rows in the Product dimension, but I expected the cube slice to reduce the number. I tested all the SQL used while it processes and with the MDXFilters the number of rows returned is well under 5000.
So, in short, the final questions is, is it possible to create a mining model in standard edition based on an existing cube where the nested dimension in the model has more than 5000 rows? Is there some other way to filter the query?
I guess my only choice on this if there isn't a way is to extract the data into relational table with only the rows I want to analyze....that's a huge pain and doesn't really make sense when the filters should limit the model size.
What is annoying on this is I can't find one reference anywhere on the microsoft site that this limit even exists within the product...
Thanks for any assistance on this!
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Jul 8, 2014
1) Errors in the OLAP storage engine: A duplicate attribute key has been found when processing:
Table: 'dbo_Dim_x0020_Document_x0020_Type',Column: 'Item_x0020_No_', Value: '1100'. The attribute is 'Item No'.
How can I resolve this on package level.
2) I am also not able to see all the fields of a fact table when creating cube, where I can se all fields in dataview.
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Aug 17, 2006
Hi,
I've tried those two operations in the Management Studio.
Though we can create a mining structure and mining model in Management Studion,
but we cannot process the analysis-service database.
(1) I create only a mining structure through CREATE MINING STRUCTURE.
No error reported. But if I process the analysis-service database in Management Studio I always get error
'Error : The '<mining_structure__name>' structure does not contain bindings to data
(or contain bindings that are not valid) and cannot be processed.
I then tried to create it by creating and running an XMLA script. It was successful.
However, it's much harder to learn XMLA.
If any of you created an analysis-service database in Mgt Studio, and create a mining
structure in the same place using DMX script, can you process the database?
(2) Is there any use of CREATE MINING STRUCTURE operation without binding
to any table? Examples I saw so far did not show relating it to do. In my experience
processing the analysis-service database with that mining structure is doomed to fail.
(3) Is there any way we can create mining structure through CREATE MINING
STRUCTURE operation in Management Studio and use RELATED TO clause
to bind it to any Relationship to an attribute column (mandatory only if it applies), indicated by
the RELATED TO clause
(4) If this is the fact, is there any use of CREATE MINING STRUCTURE operation?
If we use BI Dev Studio, it's much easier to use the wizard.
(5) I found I cannot create a mining model inside a mining structure through operation
CREATE MINING MODEL. If you call that operation, you end up having a mining
model and a mining structure with the same name. I found that in order to create a
mining model inside a mining structure you have to call operation ALTER MINING
STRUCTURE ADD MINING MODEL. Is it true this is the only way?
Thank you,
Bernaridho
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Jun 12, 2015
I 've read that there is a workaround for this issue by customizing errors at processing time but I am not glad to have to ignore errors, also the cube process is scheduled so ignore errors is not a choice at least a good one.
This is part of my cube where the error is thrown.
DimTime
PK (int)MyMonth (int, Example = 201501, 201502, 201503, etc.) Another Columns
FactBudget
PK (int)Month (int, Example = 201501, 201502, 201503, etc.)
I set the relation between DimTime and FactBudget doing DimTime MyMonth as Primary Key and FactBudget Month as Foreign Key.
The cube built without problem, when processing the errror: The attribute key cannot be found when processingwas thrown.
It was thrown due to FactBudget has some Month values (201510, 201511, 201512 in example) which DimTime don't, so the integrity is broken.
My actual question: is there a way or pattern to redesign this DWH to correctly deploy and process?
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Sep 11, 2006
Hi,
I am working with several tables, but for now I just mention 4 : one is fact table (named Usage), and 3 dimensional tables Periods, Products, and Regions. The fact table contains references to the dimensional tables. Table Periods contain two other columns month and year.
I created a cube containing columns from those 4 tables. Deployment was successful. Trouble comes when I want to create a mining structure using Time Series containing these columns :
- Period
- Amount (of money)
- Product name
- Region name
When I choose to use cube (instead of table) as source for mining structure, I'm forced to choose only one dimension (among the Periods, Products, and Regions). Whatever dimension I choose I end up being unable to use the column period as the Time-Key column. Effectively I cannot use Time Series method since I cannot use the column period.
(1) Why is this so [why Visual Studio forced us to use only one dimension from the cube] ?
(2) Why Visual Studio eliminates the column period, column that has relationship with the
time dimension?
(3) What is the use of Cube anyway to the mining? Is there still any use for it?
(4) What is the solution to that kind of problem I face?
Thank you,
Bernaridho
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Jul 10, 2007
Hi, all,
Just found that we are not able to define multiple key columns for a mining structure in SQL Server 2005 Data Mining engine, just wondering is there other way to define multiple key columns for a mining structure there? As in many cases, the table we are mining are with composite key consisting of different foriengn keys, e.g. A fact table are with transaction information and other foreign keys. If I am not able to define these composite key here for this fact table, I will have to have a named calculation in data source view to have a key column which is based on these original composite keys? Is this a better way to solve this problem or there is any other alternatives to figure it out?
Hope my question is clear for your help and I am looking forward to heaing from you shortly for your kind advices and help and thanks a lot in advance.
With best regards,
Yours sincerely,
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Feb 21, 2007
Hello,
Can anyone spot what i am missing here ? The problem is that i am getting a null object for e.TextData in the t_OnEvent(object sender, TraceEventArgs e) function below. I am trying to get event- notifications while processing the data mining structure.
thanks
anil
//-------------code below-------------------------------------
using Microsoft.AnalysisServices;
private void ProcessMiningStructure(MiningStructure mStruct)
{
Trace t;
TraceEvent e;
t = server.Traces.Add();
e = t.Events.Add(TraceEventClass.ProgressReportCurrent);
e.Columns.Add(TraceColumn.TextData);
t.OnEvent += new TraceEventHandler(t_OnEvent);
t.Update();
try
{
t.Start();
mStruct.Process(ProcessType.ProcessFull);
t.Stop();
}
catch (Exception ex)
{
}
t.Drop();
}
//------------------------------------------------------
void t_OnEvent(object sender, TraceEventArgs e)
{
SetText(e.TextData);
}
//------------------------------------------------------
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Nov 23, 2006
Hi, all here,
Thank you very much for your kind attention.
I got a quite a strange problem with Mining structure for OLAP data source though. The problem is: I am not able to edit the mining structure in the mining structure editor. The whole data source view within the mining structure editor is greyed. Could please anyone here give me any advices for that?
Thank you very much in advance for any help for that.
With best regards,
Yours sincerely,
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Mar 13, 2008
Hi,
I've tried to use the export command to export a mining model from management studio, but it returns that
export statement is not supported for OLAP mining structures, Ive checked the EXPORT(DMX) reference I can't see any note that it is not applicable on OLAP structures.
Can anyone confirm this?
-Rgds,
Sheryaar
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May 16, 2007
Created:
Cubes
Dimension
Role
Mining Structure
From Analysis Services, how do I now use reporting services to show the Data?
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May 12, 2015
We saved huge log data from user behaviour in our site .
But In data mining time , we saw that most of them cant use for data mining
What is the best practice about data gathering from user movement in site?
is there any best practice Template for this ?
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May 3, 2007
Hi, all experts here,
I am a bit confused for the model evaluation (lift chart), should we map all the columns for both the mining structure and the case table? I mean for those predictive models, we have a predict column, shouldnt we ignore the mapping of the predictive column between the mining structure and the case table? But it seemes we are not allowed to miss the predictive column mapping between the mining structure and the case table.
Why is that? Could any experts here give me some explanation on that?
Hope my question is clear for your help.
Thanks a lot and I am looking forward to hearing from you shortly.
With best regards,
Yours sincerely,
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Mar 28, 2007
I have tried to process a data mining model that I have produce programmatically. I use the following code for processing
Private Sub BtProcess_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtProcess.Click
' Now some different styles of processing
'Process mining structure first - don't process the models though
' ms.Process(ProcessType.ProcessStructure)
ms.Process(ProcessType.ProcessStructure)
DeclareBox.Text = "Process Data Mining Structure"
' Process the mining model only (because the structure has been processed above
' We could have said ProcessDefault without processing the structure first, though
mm.Process(ProcessType.ProcessDefault)
DeclareBox.Text = "Process Data Mining Model"
End Sub
I use the following code for data mining model and is correctly designed
Private Sub CreateMiningModel()
Dim mc As MiningModelColumn
mm = ms.MiningModels.Add(CbDatabase.Text & " miningmodelName") ', Utils.GetSyntacticallyValidID(miningmodelName, Type.GetType(MiningModel)))
mm.Algorithm = "Microsoft_Decision_Trees"
mm.AlgorithmParameters.Add("COMPLEXITY_PENALTY", 0.3)
mc = New MiningModelColumn("SUMCODE", "SUMCODE")
mc.SourceColumnID = ms.Columns("SUMCODE").ID
mc.Usage = "Key"
mm.Columns.Add(mc)
mc = New MiningModelColumn("STAFF_YES", "STAFF_YES")
mc.SourceColumnID = ms.Columns("STAFF_YES").ID
mc.Usage = "Input"
mm.Columns.Add(mc)
mc = New MiningModelColumn("D_G_OZODIS_IPER", "D_G_OZODIS_IPER")
mc.SourceColumnID = ms.Columns("D_G_OZODIS_IPER").ID
mc.Usage = "PredictOnly"
mm.Columns.Add(mc)
and I received the following error message. Any Ideas? What is wrong with this? Thank you in advance
<Batch xmlns="http://schemas.microsoft.com/analysisservices/2003/engine">
<Parallel>
<Process xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<Object>
<DatabaseID>test27</DatabaseID>
<MiningStructureID>test27 MiningStructureName</MiningStructureID>
<MiningModelID>test27 miningmodelName</MiningModelID>
</Object>
<Type>ProcessFull</Type>
<WriteBackTableCreation>UseExisting</WriteBackTableCreation>
</Process>
</Parallel>
</Batch>
Processing Mining Structure 'test27 MiningStructureName' completed successfully.
Start time: 26/3/2007 11:36:18 μμ; End time: 26/3/2007 11:36:18 μμ; Duration: 0:00:00
Processing Dimension 'test27 MiningStructureName ~MC-SUMCODE' failed.
Start time: 26/3/2007 11:36:18 μμ; End time: 26/3/2007 11:36:18 μμ; Duration: 0:00:00
Processing Dimension Attribute '(All)' completed successfully.
Start time: 26/3/2007 11:36:18 μμ; End time: 26/3/2007 11:36:18 μμ; Duration: 0:00:00
Processing Dimension Attribute 'OZOS NUM MANY' failed.
Start time: 26/3/2007 11:36:18 μμ; End time: 26/3/2007 11:36:18 μμ; Duration: 0:00:00
SQL queries 1
SELECT
DISTINCT
[VISIT].[OZOS_NUM_MANY] AS [VISITOZOS_NUM_MANY0_0]
FROM [VISIT] AS [VISIT]
Error Messages 1
OLE DB error: OLE DB or ODBC error: Operation canceled; HY008.
Processing Dimension Attribute 'STAFF_YES' failed. 1 rows have been read.
Start time: 26/3/2007 11:36:18 μμ; End time: 26/3/2007 11:36:18 μμ; Duration: 0:00:00
SQL queries 1
SELECT [VISIT].[STAFF_YES] AS [VISITSTAFF_YES0_0]
FROM [VISIT] AS [VISIT]
Error Messages 1
OLE DB error: OLE DB or ODBC error: Requested conversion is not supported.. Errors in the OLAP storage engine: An error occurred while the 'STAFF_YES' attribute of the 'test27 MiningStructureName ~MC-SUMCODE' dimension from the 'test27' database was being processed.
Processing Dimension Attribute 'D_G_OZODIS_IPER' completed successfully.
Start time: 26/3/2007 11:36:18 μμ; End time: 26/3/2007 11:36:18 μμ; Duration: 0:00:00
Errors and Warnings from Response
OLE DB error: OLE DB or ODBC error: Requested conversion is not supported..
Errors in the OLAP storage engine: An error occurred while the 'STAFF_YES' attribute of the 'test27 MiningStructureName ~MC-SUMCODE' dimension from the 'test27' database was being processed.
Errors in the OLAP storage engine: The process operation ended because the number of errors encountered during processing reached the defined limit of allowable errors for the operation.
OLE DB error: OLE DB or ODBC error: Operation canceled; HY008.
Errors in the OLAP storage engine: An error occurred while the dimension, with the ID of 'test27 MiningStructureName ~MC-SUMCODE', Name of 'test27 MiningStructureName ~MC-SUMCODE' was being processed.
Errors in the OLAP storage engine: An error occurred while the 'OZOS NUM MANY' attribute of the 'test27 MiningStructureName ~MC-SUMCODE' dimension from the 'test27' database was being processed.
Errors in the high-level relational engine. The database operation was cancelled because of an earlier failure.
Errors in the OLAP storage engine: An error occurred while the dimension, with the ID of 'test27 MiningStructureName ~MC-SUMCODE', Name of 'test27 MiningStructureName ~MC-SUMCODE' was being processed.
Errors in the OLAP storage engine: An error occurred while the 'D_G_OZODIS_IPER' attribute of the 'test27 MiningStructureName ~MC-SUMCODE' dimension from the 'test27' database was being processed.
Manolis
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May 29, 2006
I am trying to write some DMX queries to create and populate a mining model as a SSMS analysis services project. I followed the following steps:
1. Create the mining model using a CREATE MINING MODEL ... query.
2. Followed by the - INSERT INTO MINING MODEL ... query, which fetches prediction data from another mining model to populate the mining model.
3. I now want to use this new model for prediction, which requires processing the mining model first. When I process the model, it throws the following error:
Error (Data mining): The 'XYZ_Structure' structure does not contain bindings to data (or contains bindings that are not valid) and cannot be processed.
Please suggest if I am making a mistake in the above procedure. I will appreciate all help in overcoming this issue.
Auxilliary question: How do I process the mining model programmatically?
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Aug 5, 2015
I have started working on SSAS since last week, I need to perform some calculations on the data fetched from the cube based on the parameters. SSRS is used to display the output and SSAS is used as a data source.
How i could perform the operations on the data fetched from the cube in SSAS? Does SSAS provides the storage structure like temp table in stored procedure where we can perform the various operations before sending final data back to the client side tool(SSRS)?
OR Is there any alternative way to perform the operations based on the input provided through the parameters
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Jul 10, 2015
I have an execute process task set up to run ftp.exe and a script argument. The ftp.exe is referenced in the executable field without a qualified path. The package just seems to know it's there relatively. I need to change this to run a secured ftp executable that I recently installed on my pc. I put the new executable in the WindowsSystem32 folder where the old ftp.exe is stored. But when I put the new executable in the executable field, it says the 'File/Process "FTPS.exe" is not in path'. I get the same error when I fully qualify the path. Is there something I need to do with the new executable for SSIS to pick it up without having to fully qualify the path?
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Jun 12, 2015
How to right choose key column in"Mining Structure" for Microsoft Analysis Services?
I have table:
"Incoming goods"
Create table Income (
ID int not null identity(1, 1)
[Date] datetime not null,
GoodID int not null,
PriceDeliver decimal(18, 2) not null,
PriceSalse decimal(18, 2) not null,
CONSTRAINT PK_ Income PRIMARY KEY CLUSTERED (ID),
CONSTRAINT FK_IncomeGood foreign key (GoodID) references dbo.Goods ( ID )
)
I'm trying to build a relationship(regression) between “Price Sale” from Good and “Price Deliver”.But I do not know what column better choose as “key column”: ID or GoodID ?
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Apr 26, 2006
Hi, all here,
I am wondering where can I store my mining results in data mining engine? For example, I got mining results like accuracy chart, decision trees, and other formats of results based on different mining algorithms I used for my data mining, so where can I actually store the results for reporting service use later? Is it possible to do that in SQL Server 2005?
Thanks a lot for any help and guidance in advance.
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Aug 10, 2015
I want to insert attibute att1 in field F1 . Value for this attribute is content of another field in this table (F2).
My query :
update MyTable
set F1.modify
('insert attribute att1 {sql:column("F2")} into (/ROOT/Node1)[1]')
Where F1 Is not null
But I get this error :
XML well-formedness check: Duplicate attribute 'att1'. Rewrite your XQuery so it returns well-formed XML.
How do I check the douplicate attribute ?
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May 16, 2008
HI,
I had to change the key columns of a dimension attribute to fix an error. I did this in BIDS. The change was from a single key column to a composite key column. Now I am getting these error when I process the cube:
Measure group attribute key column x does not match source attribute ..
I looked at the cube XMLA definition under mesaure groups and it still shows a single key column with inherited binding. However, the BIDS does not give me an option correct this in any way. I have had to do this once before and the only option seems to be removing the dimension from the cube and add it back in. But that is very error prone since I lose any specific settings at the cube dimension level not to mention aggregations no longer include the dimension, etc.
Not seeing an alternative, I went through each measure group (I have 7) and changed the key columns manually in the XMLA and saved the cube. This worked, but I don't understand why BIDS automatically doesn't do it.
Is this a flaw in the BIDS or I should be missing something.
thanks
MJ
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Oct 27, 2007
Hi all,
I have MS Time Seeries model using a database of over a thousand products each of which has hundreds of cases. It amazingly takes only a few minutes to finish processing the model, but when I click Mining Model Viewer to view the models, it takes many hours to show up. Once the window is open, I can choose model for different products almost instantly. Is this normal?
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Sep 26, 2006
Hi,
I have just run a simple data set through a model to predict a simple true or false value (i.e. binary output)
The Lift Chart/Mining Legend in Analysis Services shows three results Score, Population Correct (%), and Predict Probability (%)
Population Correct I beleive is the percentage of predictions it got right out of the total number of predictions it tried to make. Is this correct?
However, I cant work out how the other two are derived in particular the 'SCORE'. To give a live example the scores were as follows:
Model Score Pop Correct Pred Probability
Decision Trees 0.83 76.59% 54.28%
Neural Network 0.75 67.63% 50.05%
Ideal Model 100.00%
Can anyone help with this and give a detailed explanation?
Many thanks,
S Rajput
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