Security on Employee Parent Child Dimension with SCD 2
Hi
I am looking for a solution for how to get all child members of a Parent employee including the one in the history. I tried multiple ways the problem which I am facing are
Scenario 1: When I am using this approach, since the Employee with 'Jump' as employee id do have a history record with no children under him I am getting 'Null'. But there are new records (last 3 SCD changes) where he has employees under him.
SELECT descendants(
// Check if current employee is a manager
iif(hierarchize(exists([Employee].[Manager Employee Dim ID].members,
(strtomember("[Employee].[Employee Login ID].&[SIC\jump]"))),post).item(0).item(0).parent.datamember is
hierarchize(exists([Employee].[Manager Employee Dim ID].members,
(strtomember("[Employee].[Employee Login ID].&[SIC\jump]"))), post).item(0).item(0),
// End of check if current employee is manager
hierarchize(exists([Employee].[Manager Employee Dim ID].members,
(strtomember("[Employee].[Employee Login ID].&[SIC\jump]"))),post).item(0).item(0).parent,
hierarchize(exists([Employee].[Manager Employee Dim ID].members,
(strtomember("[Employee].[Employee Login ID].&[SIC\jump]"))), post).item(0).item(0))) ON 0,
[Measures].[Aggregate Count] On 1
FROM [Data Ware House]
Scenario 2: When I put a filter (as a set) to check if the record is current then I am getting the latest record for employee 'Jump'. But here the problem is that the employee under him I am only getting the [Measures].[Aggregate Count] of the latest
change only.
SELECT descendants(
// Check if current employee is a manager
iif(hierarchize(exists([UW Employee].[Manager Employee Dim ID].members,
(strtomember("[UW Employee].[Employee Login ID].&[SIC\flew]"),[UW Employee].[Current Flag].&[Y])),
post).item(0).item(0).parent.datamember is
hierarchize(exists([UW Employee].[Manager Employee Dim ID].members,
(strtomember("[UW Employee].[Employee Login ID].&[SIC\flew]"),[UW Employee].[Current Flag].&[Y])), post).item(0).item(0),
// End of check if current employee is manager
hierarchize(exists([UW Employee].[Manager Employee Dim ID].members,
(strtomember("[UW Employee].[Employee Login ID].&[SIC\flew]"),[UW Employee].[Current Flag].&[Y])),
post).item(0).item(0).parent,
hierarchize(exists([UW Employee].[Manager Employee Dim ID].members,
(strtomember("[UW Employee].[Employee Login ID].&[SIC\flew]"),[UW Employee].[Current Flag].&[Y])), post).item(0).item(0))
) ON 0,
[Measures].[Contract Change Aggregate Count] ON 1
FROM [Data Ware House]
If any one can help me out with this that will be helpful.
What I need is all the members under the employee 'Jump', including the Old scd records for 'jump'
regards
Robin
Robs
Hi,
Outline is blank at the start of load and I expect dimensions Product and ProdAttribute to be added.
Generations are unapplicable, since I can't turn this parent-child dimension (it's ragged) into generation one.
And, by the way Integration Services manages to do this somehow, why rule files wouldn't?
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OBIEE Parent-Child Dimension with multiple hierarchies
Is it possible to have in a parent-child dimension multiple hierarchies? I want to have the same botom childs to aggregate to different parrents. example.
Account Dimension
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Thanks in advance.No, it is not possible to have multiple hiearchies in a PC logical dimension.
The concept of the Parent-Child (PC) hierarchy is completely different from the level-based hierarchy. Specifically the PC hierarchy expects a predefined / architected table with corresponding PC column/value structuring with or without attributes.
Short story even shorter it is not possible.
Longer...
In the RPD the BMM actually prevents you from adding a new logical level, child level, or parent level when you have selected that the logical dimension be a parent child logical dimension with Parent-Child hierarchy.
On another note...
Have you tried architecting/building your PC source table so that it represents the roll-up and bottom child-levels like you are seeking? That is, that same member in the child column more than once having a separate parent value. That should be doable.
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http://www.artofbi.com -
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Well, I've cracked my head open while banging against this wall.
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Outline is blank at the start of load and I expect dimensions Product and ProdAttribute to be added.
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Hello. Before I start let me apologise for my English :)
We have a very complex cube, with 2 (actually more, but only these 2 are important) parent-child dimensions.
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And if we revert these 2 dimensions back to parent-child - all working fine again, but as slow as it was before the refactoring :(Hi Bateks,
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Regards,
Charlie Liao
TechNet Community Support -
Inclue children and exclue children in a single hierarchy in parent child dimension in mdx
hi,
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According to your description, you have a parent child dimension in your cube. Now you want to use one measure use show aggregation value including/excluding child member based on different parent level member. Right?
In this scenario, we could use IIF() in the calculated measure to apply different calculation depends on the current dimension member. Please refer to query below:
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[Date].[Calendar].[Parent]),
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Best Regards,
Simon Hou
TechNet Community Support -
I'm creating a SSRS report using SSAS cube as a source.
When creating a dataset for the report, I'm having trouble with MDX to select a specific dimension member and its descendants from parent child dimension where dimension member names can be same in dimension hierarchy.
Lets say for example that I have an account dimension where,
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In level 03 I have Balance sheet
In level 04 I have some account groups, Assets, Liabilities and so on... and In level 05 I have individual accounts
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TuomoHi Tuomo Helminen,
To this requirement of yours, I would recommend you use Cascading Parameters in Reporting services, you can refer to this FAQ How do I create cascading parameters when using cube database in Reporting Services at this link
http://blogs.msdn.com/b/sqlforum/archive/2011/04/11/forum-faq-how-do-i-create-cascading-parameters-when-using-cube-database-in-reporting-services.aspx
Thanks,
Challen Fu
TechNet
Subscriber Supportinforum
If you have any feedback on our support, please [email protected]
Please remember to mark the replies as answers if they help and unmark them if they provide no help. -
Parent-child dimensions limitations
Hi eb
It is very convinient to develop complex heirarchized dimensions as parent-child especialy when they retain historical
changes in members.
I know one reason to not using such dimensions when they contain some 200,000 members or more due to performance issues (no aggregations on parent attributes???).
Are there any other reasons to not using parent-child heirarchies in ssas MD cubes???
TIA!
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According to your description, you want to know weakness of using parent-child dimension. Right?
In Analysis Services, a parent-child dimension is distinguished by fact that it contains a hierarchy based on a recursive relationship. So it can only cause some performance problem. But the main reason of using a parent-child dimension
or not depends on the relationship between the attributes in your dimension. And there's workaround for the performance issue. Please see:
Parent-Child Dimensions in Analysis Services – Performance Walkthrough
Reference:
Parent-Child Dimensions
If you have any question, please feel free to ask.
Simon Hou
TechNet Community Support -
How to create a parent-child dimension in EIS?
Does anyoe know how to create a parent-child dimension in EIS? Helps.
It's easy but there are a few things to know.
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-in the OLAP model you must do a "self-join". select the table properties | physical joins. then join the parent to the child within the same table
-in the metaoutline drag only one column, not both (i like using the child only) to the dimension in the metaoutline panel.
If you need more help email me ([email protected]) and I'll do a webex demo for you.
Ron -
Dynamic Security in a denormalized Parent-Child dimension Table
Hi guys, I need your priceless help again:
I have a parent child relationship in a table with a fixed depth, let´s say Region-->Area-->Country
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Then, to implement dynamic security, I think in a bridge table with the userId
and the CountryId, then with a measure group and a measure which count the combination of user/country I can proof the security using the non empty function.
My question is how can I also set security for the levels above the leaf members, let´s say, I want to assign an user to the Area level or Region Level. I don't know exactly which key could I include in the bridge table.
I may want to keep the id´s of the original table in the different levels.
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According to your description, you want to apply dynamic security on parent-child hierarchy. Right?
In Analysis Services, when a dimension contains a parent-child hierarchy, we can't set up security directly on the key attribute. Because it will not appear on the dropdown list of Dimension Data Security in Role editor.
In this scenario, we need to filter on key attribute and not the parent-child hierarchy. Then use Linkmember() to find the equivalent members on the parent-child hierarchy. Please refer to the expression below based on a employee dimension with parent-child
hierarchy.
Generate(
NonEmpty(
[Employee].[Employee].[Employee].Members,
[Measures].[Employee Count],
StrToMember('[User].[User].[' + UserName() + ']')
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[Employee].[Employees]
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Expert Cube Development with Microsoft SQL Server 2008 Analysis Services. It talks about this scenario in chap 9.
Reference:
SSAS
Dynamic security - Bridge table (factless) between User dimension and Parent-Child (PC) dimension
If you have any question, please feel free to ask.
Best Regards,
Simon Hou
TechNet Community Support -
Hide parents in a parent-child hierarchy with dynamic rights
Hi all,
I'm facing the following issue with dynamic rights on a parent-child hierarchy:
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http://saysmymind.wordpress.com/2013/01/15/hide-a-specific-attribute-hierarchy-in-role-playing-dimension-ssas-multidimensional/
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/e2596eec-7c2d-48c0-8e81-538a8c632360/hide-dimension-based-on-roles
Hope this helps.
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Charlie Liao
TechNet Community Support -
How to handle parent-child dimension in OWB?????
i have a dimension have many levels,and the amount of levels is varing,so i cannot use the wizard to define my dimension ,seems with OWB i can only define dimension with certain amount of levels.......
my dimension data is stored with this format:
child parent
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it is called a parent-child relation ,how can i define dimension with parent-child relation witn OWB...
Can OWB do it ?????i have a dimension have many levels,and the amount of levels is varing,so i cannot use the wizard to define my dimension ,seems with OWB i can only define dimension with certain amount of levels.......
my dimension data is stored with this format:
child parent
Los Angles US
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it is called a parent-child relation ,how can i define dimension with parent-child relation witn OWB...
Can OWB do it ????? You must define a dimension, define the dimension levels and the hierarchy inside the dimension (a hierarchy can have as many levels as you want, parent-child relationship is a normal hierarchy concept - no rocket science here). Then you have to map the data source for the dimension levels appropriately. Please refer to the user manual, chapter 4 ("Defining dimensianal targets") for details.
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Dim OrgNode ID
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How to model parent child relationship with DPL? @Transient?
Hello All,
I want to model a parent entity object with a collection of child entities:
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Edited by: JavaGeek_Boston on Oct 29, 2008 2:22 PMHi Steven,
The definition of persistence is here:
http://www.oracle.com/technology/documentation/berkeley-db/je/java/com/sleepycat/persist/model/Entity.html
And includes this: "All non-transient instance fields of an entity class, as well as its superclasses and subclasses, are persistent. static and transient fields are not persistent."
So you can use the Java transient keyword. If that isn't practical because you're using transient in a different way for Java serialization, see the JE @NotPersistent annotation.
In general a parent-child relationship between entities is implemented almost as you've described, but with a parentId secondary key in the Child to index all children by their parent. This enables a fast lookup of children by their parent ID.
I suggest looking at this javadoc:
http://www.oracle.com/technology/documentation/berkeley-db/je/java/com/sleepycat/persist/SecondaryIndex.html
as it describes all types of entity relationships and the trade-offs involved. The department-employee relationship in these examples is a parent-child relationship.
--mark -
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Hi
We have custom rollup set up for Account dimension which is parent child.
It seems to work fine when the custom member formula refers to a base account member i.e. if the formula for MemberKey4 is (MemberKey1 + MemberKey2) then it shows the sum of the underlying members 1 and 2.
But if the formula for MemberKey10 is (MemberKey3 + MemberKey4) then it should evaluate the value for MemberKey4 first and then add to it value for MemberKey3 to come up with final number for MemberKey10.
Do the custom rollup work fine with the recursive calculations? Is this recursion limited to some level?
Thanks
ShaileshHi Jorg,
Thanks for your input.
Actually the hierarhcy is more determined by the parent child relationship. So we cannot move the members as per the formula. And further the formulas are not always additive, there are divisions and multiplactions happening also.
Further the calculated members (account members) are used in different places, the usage level of calculated members could be 3 in some cases i.e. MemberKey15 = (calculated using MemberKey10 = (calculated using MemberKey7 = (Calculated using MemberKey4 = (calculated using base members)))). Now inserting the base members in place of a calcuated member becomes more of string manipulation.
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In the link http://doc.ddart.net/mssql/sql2000/html/olapdmad/agmdxadvanced_6jn7.htm for AS2000, it talks about the calculation pass deapth, it says:
.......If a cube has custom rollup formulas or custom rollup operators, a second calculation pass is performed to handle the computations needed to calculate these features.......
Now from the above, it is obvious that the OLAP engine will automatically go into recursion if the formula contains a cacluated member and it knows that the calculated member has to be resolved first before calculating the final formula result. The above article also talks about 'Calculation Pass Number' property in the AdvanceCube Editor (AS2000), which can be set to the value depending on the expected number of passes required in a given scenario. I don't find such an equivalent peoperty for SSAS 2005.
Would anybody please throw some more ideas / insights on this issue?
Jorg, thanks again for your input...
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Showing aggregated data at Manager's geography level in a parent child dimension
I have DimEmployee dimension which has parent child relationship (between ManagerID & EmployeeID)
EmployeeID
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GeographyID
Othe columns
1
1
G1
2
1
G2
3
2
G3
4
4
G4
5
4
G5
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1
100
2
150
3
80
4
50
5
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How do I solve this problem using MDX?I have DimEmployee dimension which has parent child relationship (between ManagerID & EmployeeID)
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1
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1
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I am able to show data at MangerID level data but unable to do so at Manager’s Geography level.
How do I solve this problem using MDX?
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