How To Select Leaf Nodes From Database Tree

Sep 17, 2007

I am just wondering how can I retrieve only the leaf node from the table below

Region
RegionID RegionPID RegionName
1 Null South
2 Null East
3 Null Central
4 3 Central CBD
5 3 Central - East
6 3 Central - West
7 1 South-Yarra
8 4 China Town
9 4 Korean Town
....

What i would like to do is retrieve all the region name which is the lowest level from the tree
e.g only those records below will return
5 3 Central - East
6 3 Central - West
7 1 South-Yarra
8 4 China Town
9 4 Korean TownCould any one help? Thank you

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Decision Tree Predictions Occuring At Non-leaf Node

May 2, 2007

After having built a decision tree model to predict a boolean output attribute using 64-bit SQL Server 2005 (build 9.0.3054), we have observed that predictions for some cases are being done at non-leaf nodes in the tree.



Specifically, after executing a prediction join which returns:


- CaseTable.CaseID
- MiningModel.OutputAttribute
- PredictProbability(MiningModel.OutputAttribute)
- PredictNodeId(MiningModel.OutputAttribute)



and comparing the values of PredictNodeID(MiningModel.OutputAttribute) with the mining model content column [NODE_UNIQUE_NAME] to determine the actual "rule" used to make the case-level prediction.



We have observed that for a subset of cases, predictions are being made at nodes in the tree that are not leaf nodes. Specifically, predictions are being made at a node that is 3 levels deep. The leaf nodes below this inner-tree node are 2 levels further down the tree.



Also supporting the fact that that predictions are being made at this non-leaf node is that the PredictProbability corresponds exactly with the output attribute distribution at this non-leaf node.



In this particular application, we would have obtained better results if the predictions were made at the leaf-nodes.



A few questions:
1. Why are predictions with decision trees made at non-leaf nodes?
2. Is there a way to "force" predictions to occur at leaf nodes via DMX?



Thanks in advance for any information or advice.

- Paul

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Apr 16, 2007

I have a tree structured table like the ff.



which looks like the one below in tree view.



I'd like to get the rows under a specified elementnumber which may have unlimited sub-nodes.

i.e. If i want only 'Level1' i would get results from row 2-5.

any help is greatly appreciated.

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Jun 3, 2015

I have the following table:

SELECT 'A' as Item, '1' as Version, 0 as Counter, '01-01-2011' as CreatedDate UNION ALL
SELECT 'A' as Item, '1.1' as Version, 1 as Counter, '01-02-2011' as CreatedDate UNION ALL
SELECT 'A' as Item, '1.2' as Version, 2 as Counter, '01-03-2011' as CreatedDate UNION ALL
SELECT 'B' as Item, '1.2' as Version, 0 as Counter, '01-01-2011' as CreatedDate UNION ALL

[Code] .....

I want to write a script where if a user enters the version number, then the output should show all the upward and downward nodes..e.g. if a user selects '1.2' version then following should be the output

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Nov 6, 2005

hello i have a table with four fields : name_id, name, tree_id, level withthese data:1 name1 001 12 name2 002 13 name3 003 14 name4 001001 25 name5 001002 26 name6 001003 27 name7 001001001 3tree:1-- 4-7-5-62-3-and procedure which add nodes to tree looks tree.add(idparent,idchild,name)how to write select which returns idparent,idchild and name then i can addnodes in loop reading datareader ?

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Apr 6, 2015

I got assignment, how to make it appear in the right order .

/* DROP TABLE EMP
SELECT * INTO Emp FROM (
SELECT 'A' EmpID, NULL ManID, 'Name' EmpName UNION ALL
SELECT 'MAC' EmpID, 'A' ManID, 'Name__' EmpName UNION ALL
SELECT '1ABA' EmpID, 'MAC' ManID, 'Name____' EmpName UNION ALL
SELECT 'ABB' EmpID, '1ABA' ManID, 'Name______' EmpName UNION ALL
SELECT 'XB' EmpID, 'A' ManID, 'Name__' EmpName UNION ALL
SELECT 'BAC' EmpID, 'XB' ManID, 'Name____' EmpName ) b
*/

[code]....

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Aug 6, 2014

Is it possible to create a cluster configuration, where 2 (or more) SQL Server instances running on different servers will simultaneously serve the same database attached to the same storage? Something like this:

Instance A Instance B Instance C
(active) (active) (active)
| /
| /
| /
SAN for Database and Quorum

The point would be to improve reliability and performance at the same time. All nodes would share load. If a node fails, the other nodes still work and take over the load.

I know a failover cluster can be done, where 1 instance is active and others are passive (active/passive) which improves reliability, but in this configuration just 1 instance is serving at the same time.

(As far as I understand, the active/active configuration is meant to run different databases on 2 (or more) instances such that the databases on a failing node are taken over by any other instances in the cluster.)

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I have a 2012 AlwaysOn DB Mirroring environment set up with two nodes. Both have 5 installs of SQL named instances.

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I have tried re-inatalling and all of the service packs.

Thanks !!

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Jul 20, 2005

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May 22, 2008

NOTE: I apologize to anyone (especially moderators) who may notice that I am basically repeating a question that was already posted by me in another recent thread. The reason why I am reposting is because I want to filter my question down to its crux because the other question may not have been asked in the most clear way.

The Question:

The sceanrio is this.
(1) I have a sales person dimension with a hierarchy.
(2) In this hierarchy, Bill and Ted roll up to John.
(3) Bill sells 10 units, Ted sells 8 units, and John sells 5 units.

When you process this hierarchy, what would you expect the total to be for John?
(A) 23, which is the sum for Bill, Ted, and John
or
(B) 18, which is the sum of Bill and Ted only and overwritting John's number

I say (A) and I think most will choose the same, and all the examples I've been reflects (A).

However, in my simple cube I get (B).

Is there a setting I need to adjust to get (A)?


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Jun 19, 2015

I have the following scenario. I want to apply some calculations on different levels and then aggregate them up.

First measure calculates at Productgroup,color,store,size level

ProductGroup Color Store Size Amount Quantity

Measure:Amount*Quantity   (ProductGroup, Color, Store, Size)

A Blue Store A L 100 6 600
A Red Store A S 150 4 600
A Green Store A M 160 7 1120
B Blue Store A L 300 3 900

[Code] ........

The other measure ignores color

ProductGroup Store Size Amount Quantity

Measure:Amount*Quantity   (ProductGroup, Store, Size)

A Store A L 100 6 600
A Store A S 150 4 600
A Store A M 160 7 1120
B Store A L 640 15 9600

[Code] ...

Ignoring that gives another figure for productgroup B. In the pivot, I should see both measures at whatever attribute, except for the measure that excludes color will be null if tried split on color

ProductGroup Amount Quantity (ProductGroup, Color, Store,   Size) (ProductGroup, Store, Size)
A 410 17 2320 2320
B 640 15 2820 9600
C 170 5 430 430

How should the two measure be defined:

Measure (ProductGroup,Color,Store,Size)
Measure (ProductGroup,Store,Size)

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Oct 22, 2015

I need to write recursive query to find child of a parent until the last leaf. Below is my code. 

;WITH Parent AS(
SELECT [ParentID],Value
FROM[DynamicColsValues_TP1]
WHEREValue IS null
UNION ALL
SELECT t1.[ParentID],T1.Value, FROM DynamicColsValues_TP1 t1 INNER JOIN Parent t2
ON t1.[ParentID]=t2.[ParentID]
)
SELECT * FROM Parent option (maxrecursion 0)

When I execute this code. It is returning me millions of rows. Whereas  i have only 20 rows in a table max 40 rows it should return.

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Sep 4, 2007

Hello,
I have a table (in Access) with about 30 fields and 1,700,000 records.
I had created a mining model in AS2005 with only one key (the autonum column called ID)
and other attributes marked as Input and/or predict.
When processing the model, it finish (after 15 min.) with an error: 3183
"Not enough space in temporal disk"
After some search , I encountered that is close related to the memory asigned to the tempdb.
I tried to increase the size of tempdb but it is imposible, moreover, it starts
with 8MB but it is autosized when needed.

I don't know how to solve this issue. Or, if it is a question of memory/disk space management (I have 100GB of free space in disk).

I tried the same model changing the KEY (I assign StudyID as key) then with the same data but 60,000 StudyIDs it is ok, so the mining model is ok (no nested tables, no case, too easy for getting a memory error)...

Please, can anyone recommend a possible solution for this issue?.
Many Thanks.

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Sep 14, 2015

At the 2nd level, the calculated measure will only be correct if it is Averaged. And at the 1st level, the calculated measure will only be correct to take these Average value from 2nd level and Sum then up together. 

Level 1 Level 2
A    
X1
X2
=================
(Avg of X1 + X2)  
B
Y1
Y2
Y3
=================
(Avg of Y1 + Y2 + Y3)
===================================================
(Sum of (Avg of X1 + X2)  + (Avg of Y1 + Y2 + Y3) )

Currently, Instead of summing all the 3 averaged value, it is averaging against all the items like,

(Avg of X1 + X2 + Y1 + Y2 + Y3)

My MDX currently looks something like that 

[Measure].[Value] / [Dimension].[Attribute.count] -> so i can get the avarage at the 2nd level but it doesn't require on the 1st level but retaining this value.

How can i do an average on the leaf level and using these average values to sum at parent level?

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Aug 25, 2015

Env: SQL Server 2012

I'd like to import some tables into MDS entities.

So I found MDSModelImport Program.

Importing is worked. And I confirmed to imported columns of tables as leaf Attributes.

I tried to insert data. But In Explorer Leaf Attributes are not shown except Code and Name.

So I couldn't insert data. In Excel also it does.

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Feb 3, 2006

Hi
i have 3 master tables 1)RoleDetails(Roleid(PK),name,masterroleid(fk) ref:RoleDetails roleid)
2) PositionDetails(positionid(PK), name,MasterPositionid(FK) ref:PostionDetails postionid,Roleid(fk) ref:Roledetails roleid)
3) Userdetails(userid(pk), loginid,pwd,roleid(fk) ref:roledetails roleid,positionid(fk)ref:postionDetails positionid,fname,address)
how to Create two functions one return child nodes as per Case 1 and another one is return Parent Nodes
as per case 2
(Manager) a -- r1 (roledetails)
/

(ROL)a1 (ROL) a2 -- r2
/ | / | |
(RO)b1 b2 b3 b4 b5 b6 -- r3
Case 1:
On passing the User ID of (a) , should get the Output as User id of ( b1,b2,b3,b4,b5,b6) along with their Role ID.

On passing the User ID of (a1), should get the Output as User ID of (b1,b2,b3)along with their Role ID.

Case 2:
On passing the Role ID of (R3), should get the User ID of all the Parent roles( a1 and a2 (R2), a(R1)long with their Role id
Case 3: on passing role id of child node , should get only all particular parent userid and roleid's.

thanks in adv.,
chakri

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XML Query Nodes - Sequence ID

Aug 8, 2014

I have a situation that can be summarized like this :

DECLARE @XML XML = '<X C="0" I="1"><E D="CODE1" A="0" /><E D="CODE2" A="0.03" /><E D="CODE2" A="0.04" /></X>'

SELECT
E.value('@D','varchar(MAX)') AS Code,
E.value('@A','varchar(MAX)') AS Rate
FROM @XML.nodes('./X/E') AS T(E)

The order of appearance is of capital importance as the rates do apply on the previous ones. Is there a way to generate a sequential ID based on the order of appearance in the XML string ? In this case, I want :

1 CODE1 0
2 CODE2 0.03
3 CODE2 0.04

I though of using a temp table with Identity column... But it's not the best way for my need. I have multiple lines each with a XML String. The ROW_NUMBER() windowed function needs a ORDER BY clause that I can't provide.

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Oct 26, 2005

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Thanks very much.

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Nested Nodes In XML From A Table

Dec 6, 2005

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Feb 7, 2008

To all the SQL H/A experts, we were wondering if we could have 3 physical nodes and 2 active/passive clusters architecture setup on a SAN as seen in the image below? http://www.geocities.com/juanlieu/CP_Arch.JPGIn case you cannot see the diagram, it would looks something like this:
active/passive Cluster A ---> physical server A (Win2003/SQL2005) ---> HP EVA SAN ---> physical server B (Win2003/SQL2005) ---> HP EVA SANactive/passive Cluster B ---> physical server B (Win2003/SQL2005) ---> HP EVA SAN ---> physical server C (Win2003/SQL2005) ---> HP EVA SAN
In this setup, I understand that Server B cannot be called upon as the active server at the SAME time by both clusters. question: what would happens if it does, would Server B reject the last cluster that calls it?Appreciated in advance.

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Dec 10, 2007

Is there a way to expand the RDL to add custom nodes?

I read here there is a <Custom> element that can be put inside the <Report> node, but it does not work. I get all kinds of Scheme errors.
http://msdn2.microsoft.com/en-us/library/ms153972.aspx


I get the following errors when I add <Custom> element inside <Report>, which is acceptable according the the MSDN link above.


Deserialization failed: The element 'Report' in namespace 'http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition' has invalid child element 'Custom' in namespace 'http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition'. List of possible elements expected: 'http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinitionescription http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition:Author http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition:AutoRefresh http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinitionataSources http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinitionataSets http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition:Body http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition:ReportParameters http://schemas.microsoft.com/sqlserver/reporting/2005/01/reportdefinition:Code http://schemas.microsoft.com/sqlserver/reporting/2005/... Line 3, position 4.


Does anyone know how to get this to work, or know where there might be some information about this online? I am coming up dry.

Thanks.

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XML Datatype Nodes() Method

Oct 30, 2006



Dear ppl, I want to shred the following XML so that i can get all the Warranty(s) with id and text.

Required Output

id WarrantyText
1 1 year parts and labor
2 2 year parts and labor

XML

declare @myDoc xml
set @myDoc =
'<ProductDescription ProductID="1" ProductName="Road Bike">
<Features >
<Warranty id="1">1 year parts and labor</Warranty>
<Warranty id="2">2 year parts and labor</Warranty>
<Maintenance>3 year parts and labor extended maintenance is available</Maintenance>
</Features>
</ProductDescription>'


I am using the following query but it doesn't seem to work


select C.value('@id', 'nvarchar(max)' ) as ID,
C.value('Warranty', 'nvarchar(max)' ) as WarrantyText
from @myDoc.nodes('//Warranty') T(C)

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Mar 22, 2007

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Feb 27, 2008

Hi,

I've got quite a simple case study, I've got a database which contains N nodes and a table containing N*(N-1) rows with the distances between each two nodes (it's a symmetrical matrix), I need to do several iterations and say to which clusters and sub-cluster each of the nodes belongs to, I failed to understand if it's within the SQL SERVER capabilities to handle already known distances in order to perform the clustering algorithm (the last part of it, just combining the groups according to the principle of minimum distances within each cluster and maximum distances between the different clusters).

In addition I would also need to know the followings:


is it possible to create an iterative process which will create several levels of clustering (number of groups found), and if so how do I tell the Mining tools how many group to create?

is there an over-lapping clusters process in the SSAS? (I.E if one node belongs to several clusters who are not a complete sub-groups of each other)

Thanks!
Ron

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Feb 15, 2007

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Nov 30, 2006

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Oct 25, 2007

Hi,
 I have a wierd error occuring here.
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Sep 14, 2006

We have a nested set L and R design in our database.
The design allows multiple instances of nodes in the hierarchy. Each node has a combination of node name and its instance id as the primary key. We also maintain a unique_qty column that has the unique number of nodes below a particular node. This unique qty basically ignores the multiple instances of nodes below it and counts only the distinct node names(ignoring their instance ids).
the problem that im facing is...how do i update the unique_qty when i perform any move in the tree.
UPDATE Hierarchy
SET unique_qty = ( SELECT COUNT(DISTINCT node_name) FROM Hierarchy AS H2 WHERE H2.L > Hierarchy.L AND H2.R < Hierarchy.R )

I am using the above query to find out the unique_qty when i initially populate the table.
My question is.. when i make a move of a subtree within the hierarchy, then i need to update this unique_qty for the source parents and the destination parents of the subtree( and the unique_qty for eah node in the subtree being moved remains the same ).
I had two ideas on how to update the parent nodes of the subtree:

1) for each node in the path to the root in the hierarchy, from the parent nodes( both source side and destination side) recalculate the unique_qty

2) for each node in the subtree find out until what level in the path to the root, we need to update the unique_qty, and then update only those unique_qtys

any suggestions on my methods? which one is better? any more ideas on how to do this??

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May 20, 2008

Hi,
I have a SQL statement that returns a hierachy

it returns ..

-NEWSPAPER
-QUALS
- TIMES
- TELEGRAPH
-MIDS
- DAILY MAIL
- EXPRESS
- EVENING STANDARD
- POPS
- THE SUN

I want the statement to include childnumber column so for newspaper it would count the total number of children below it, so in the above example newspaper would be 9 and for the mids it would equal 3? and pops = 1. does anyone know how i can do this in SQL?

thanks for your help

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Apr 8, 2006

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Oct 12, 2007

HI There

We had an existing 2 node active / active cluster, 1 running a default instance of Sql Server 2005 Enterprise Edition 9.0.3152 (SP2 + Hotfixes) and the other running a named instance of the same version.

We recently added 2 new nodes to the cluster, they were successfully added and we tested the cluster group failover successfuly to the new nodes.

Last night we tried to install Sql Server 2005 Enterprise edition on the new nodes.

I followed to proper proceudure of modifying the installation for both instances and selecting the 2 new nodes to apply them to. This went 100%. Sql Server 2005 successfully installed for both instances on the 2 new nodes, all log files were successful.

We then tried to apply SP2, we tried the following:

1. We ran SP2 from the active node, but when we go to the screen to select what you want to apply SP2 too we could not select anything, if you clicked on database engine the message said that these instances were already at a later version and we could not proceed. This is how i successfully applied SP2 to the original 2 node cluster but it does not work for additional nodes to an exisitng cluster.

This is also what all the documentation we could find said, refer to SP2 release notes under the topic "Failover Cluster Installation", it is also the method we found when googling.

2. We then tried what is described under SP2 release notes "Rebuild a SQL Server 2005 SP2 Failover Cluster Node".
We ran SP2 from the new nodes while they were passive, but when we got the screen where you select what to apply the SP2 too we could not select database engine the message at the bottom said that SP2 must be run from the active node and that we were attempting it from the passive node, this is what we tried in step 1 described above.

3. This was a last resort. We were advised to try failing over the instance to the new node and then running SP2. Personally i thought this was a bad idea, one should never fail over a instance of sql server to a node with incompatible binary versions and secondly when we installed sql server on the new nodes a warnng popped up before hand stating that the instances were at a later version and that the new nodes must be at this version before attempting fail over. I thought that sql would not even start, to my surprie we successfully failed over the sql group to the new node, when we ran SP2 it looked good we could select the database engine on the new node to apply SP2 too, BUT after clicking next after a few seconds the SP2 installation just closed, NO INFORMAITONAL MESSAGES NO ERRORS NO WARNINGS it just closed an never came back.

I had never seen this happen on a cluster before, needless to say this made me very nervous so we failed the sql group back to the original nodes and gave up.

PLEASE can some tell me how to apply SP2 to 2 new nodes in a 4 node cluster all methods descibed in SP2 release notes and other documentation as descibed above in step 1 and 2 do not work !

Thank You

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 I have this query:

SELECT res.res_id,
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FROM vwResult res
CROSS APPLY report.nodes('/clue_personal_auto/report/search_dataset/subjects/*') report(sub)

It works just fine in SQL Query.After placing this into a view in SSDT November 2012 update, I get a compilation error.

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