Fixed Vs. Changing Attribute Problem
Nov 9, 2007
Odd problem in a Slowly Changing Dimension task.
SS2005 relational table with 20 fields in it, two key.
Flat file has 10 fields in it, the two keys, four I care about, and four I don't. The four I don't are fields in the table that get updated from another feed, and they duplicate that data.
If I set the four I don't care about as fixed attributes and the four I do care about as changing attributes, none of the changing attribute fields in the table get updated. If I set them all as changing attributes, the appropriate fields get updated. However, one of the fields is a "date added" field, and if I make that a changing dimension, that field will always get updated on every record no matter what because the package uses a GETDATE() to set that value.
I'm thinking about just replacing the SCD with a SQL statement, but then I'll have to import the file into a temp table to do the joined update, and I'd rather avoid that and use what SSIS can give me.
Anyone have insight as to why it's not working?
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Aug 14, 2007
We have an issue in a SCD where a number of records may be presented that have changes to their attributes of EVERY type.
Example,
BusinessKey: xxxxxxxx
BuildingTypeId: 7
BusinessUnitHistoryId: 4019
BusinessUnitId: 4019
CurrencyId: 26
DevelopmentTypeId: 14
MarketId: 182
Name: abcdefgh
CurrencyId is a fixed attribute
MarketId & BuildingTypeId and the BusinessUnitId & BusinessUnitHistoryIds are historical attributes
Name is a changing attribute
The behaviour of the ETL seems to suggest that if fixed attribute changes are detected, these rows will error and therefore the changing & historical attributes will NOT be amended during the SCD transformation. Is this correct... as it seems to be what is happening.
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Oct 8, 2007
Hi all
Probably not the right forum - pointers would be appreciated - but I'll give it a try anyway:
I'm in the process of designing a relational database to be used in a BI scenario - ie. dimension and fact tables. The data will eventually be used to feed cubes in Analysis services, however end users will probably be allowed to run reports aginst views of the relational database.
I'm currently looking at the employee dimensions and my first try would designate AGE as a SCD Type 2 attribute. As a result every employee gets at least one new record every year as AGE increases. Given that BIRTHDATE is specified should I drop AGE from the tables and recreate it as a computed attribute in database views and/or cubes?
Regards, Steen
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Sep 29, 2006
I have a Slowly changing dimension that I am using to
populate a dimension table. My problem is this when I run the package and
any of the fields are marked as Historical Attributes it will add an additional
row regardless of the fact that the incoming data and the data in the warehouse
match exactly.
I've tried several things to fix this problem but so far none of them have
worked. Some of the things I have tried that haven€™t worked are to match
all the data types (which I have to do anyways) I've tried trimming the
strings, I've also tried adding just one column
I am using a data conversion to convert them from varchar (the source datatype)
to nvarchar(the warehouse datatype)
I'm at a dead end here and don't know where to go any help would be greatly appreciated.
Thanks
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Sep 15, 2015
I am trying to implement Slowly Changing dimension transformation using Merge.Meaning both changing and historic attribute is in place. It seems we can use Update only once in Merge, in our scenario we have to update...When the historic attribute also have changed (To update the row as expired, IsCurrent=0)Also When changing attribute is changed. (Historic attribute is same). This case also we need to use Update. I am using CDC to do this. Updated OUTPUT is moving to a temporary table and using Execute SQL task to get updated.
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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 5, 2015
I have a table with 3 columns (ID Int , Name Varchar(25), Course Varchar(20))
My source data looks like below
ID     Name       Course
1Â Â Â Â Â Â Â AÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Java
1Â Â Â Â Â Â Â AÂ Â Â Â Â Â Â Â Â Â Â Â Â Â C++
2Â Â Â Â Â Â Â BÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Java
2Â Â Â Â Â Â Â BÂ Â Â Â Â Â Â Â Â Â Â Â Â Â SQL Server
2Â Â Â Â Â Â Â BÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â .Net
2Â Â Â Â Â Â Â BÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â SAP
3Â Â Â Â Â Â Â CÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Oracle
My Output should look like below...
ID     Name      Course(1)    Course(2)        Course(3)    Course(4) Â
1       A                Java           C++
2       B                Java           SQL Server .Net            SAP
3Â Â Â Â Â Â Â CÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Oracle
Basically need t-sql to Convert non fixed rows to non fixed columns...
Rule: IF each ID and Name have more than 1 course then show it in new columns as course(1) course(2)..Course(n)
Create SQL:
Create table Sample (ID Int null , Name Varchar(25) null, Course Varchar(20) null)
Insert SQL:
INSERT Sample (ID, Name, Course)
         VALUES (1,'A','Java'),
                (1,'A','C++'),
                (2,'B','Java'),
                (2,'B','SQL Server'),
                (2,'B','.Net'),
                (2,'B','SAP'),
                (3,'C','Oracle')
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Jun 25, 2004
Does someone could explain me the NOCASE attribute in the order by line?
I cant find that anywhere.
Thanks a lot,
venusgirrl
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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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Sep 10, 2007
What happens if a column which has been defined so that it should not be Nullable is passed a value which is null?
i.e. IDNumber - Primary Key and Nullable = No.
Thanks
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Dec 11, 2007
can someone please tell me if you can implement a drop down list within a table attribute.
If anyone could show me an example please do.
Kind Regards
Rob
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Aug 10, 2005
Hi:I need to store MAC Addresses. What is the standard way of storing thistype of attribute? Datatype? I can't find any discussions about thisanywhere.Thx for any pointers.
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Jul 20, 2005
Hi!I have a following problem: I need to select some attributes fromtable, i.e.first, third, fifth...Can anyone give me the hint how to do it. Is there some method to saysomthing like this:SELECT $1, $3, $5 which will refer to the 1st, 3rd and 5th attribute?Thanks!Mario.
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Jan 10, 2008
I have the following as part of a stored procedure that generates an HTML report based on the data inserted into the table variable "@tblTemp":
SET @html =
N'<table border="1" width="0" style="font-family: Verdana, sans-serif;">' +
N'<tr><th>Name></th><th>ID</th></tr>' +
N'<col align="left"></col><col align="right"></col>' +
CAST ( ( SELECT td = [Name], '',
td = IDNumber
FROM @tblTemp
ORDER BY ID
FOR XML PATH('tr'), TYPE
) AS NVARCHAR(MAX) ) +
N'</table>' ;
SET @html = @html + N'<br /><br /><img src="muuscreenshot.jpg" width="452" height="507" alt="sample.aspx" />'
This generates a 2 column table that later in the stored procedure is sent out via sp_send_dbmail. The problem I'm having is that I want the right (2nd) column of the table to be right-aligned. For some reason, the line "
N'<col align="left"></col><col align="right"></col>' +" doesn't right-align the 2nd column when the report is sent through email (althought it does work if I take the generated string a use it to manually create an HTML file). So I want to add something like:
SET @html = REPLACE(@html, '<td', '<td align="right"')
but I still want the left column to be left-aligned, and this right-aligns everything. Is it possible for me to use REPLACE (or some other string function) to replace every other (alternating) "<td", or should I be looking at parsing this string using some 2005 XML features (unfortunately, using a CLR function to do this is not an option, since I am not allowed to turn that on on the server I'm using)? Thanks in advance.
-Dave
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Jan 9, 2008
I am trying to create a linear regression model. The model is skipping lot of columns for regression. But I want model to use all the columns even if they are not valid. I use Forced_Regressor attribute while creating the model.
add mining model Regressiontableinput2_Model
(
[id] ,
[Reading] PREDICT_ONLY,
[Const] regressor,
[HCDD] regressor,
[HHDD] regressor,
[Hr1] regressor,
[Hr2] regressor,
[Hr3] regressor,
) USING MICROSOFT_LINEAR_REGRESSION (FORCED_REGRESSOR=1)
I get the error
Error (Data mining): The 'FORCED_REGRESSOR' data mining parameter is not valid for the 'Regressiontableinput2_Model' model.
Can somedbody tell me what is the syntax for using FORCED_REGRESSOR
Thanks,
DMNovice
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Jun 30, 2015
I am trying to generate an output using Productname from below xml which will look like:
B/C/
B/D/E
demo xml:
DECLARE @myDoc xml
DECLARE @ProdID nvarchar(10)
SET @myDoc = '<Root>
<ProductDescription Productname="A" Productd="Road Bike">
[code]...
I have a query which works perfect but  with nodes. similar way I am looking for the value column. I want a similar result from the function on "Value" column(value column is defined inside the below query) : B/D/E ....
with
CTE_xpath as (
select
T.C.value('local-name(.)', 'nvarchar(max)') as Name,
T.C.query('./*') as elements,
T.C.value('text()[1]', 'nvarchar(max)') as Value
[code]...
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Oct 11, 2007
i have a column in my table that will store the sum of 3 other column, e.g the data in total_book column will be equal to the sum of the number in the romance, fiction and thriller column. how do i do this?
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Mar 10, 2008
I am trying to retrive some values from and XML data colum , along with that i need other normal column data also . how can i do that ?
here is my problem
I have a table with 2 colum .
Column Data Type
ID Int
Data XML
The XML data looks like following
<A>
<B a = 'sun' b = 'Red' >
</B>
<A>
I want to get each id and the 'b' attribute of the B node of the xml data for each row ?
Please help me if there is any simple way to do this .
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Jan 21, 2008
Hi everyone,
I heard that it is possible to make more than one attribute(coloumn) primary key. Is this really possible, logical, productive and beneficial ?
Thanks
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May 1, 2006
Can someone from MS tell me if this has been fixed in SP1?
http://blogs.conchango.com/jamiethomson/archive/2005/10/11/2261.aspx
Thanks
Jamie
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Aug 6, 2007
How can I set an attribute of unsigned zerofill in SQL? Like for example, there is an option in MySQL phpmyadmin to set the attribute of a specific column to unsigned zerofill, it will be based on the length of the integer. For example, the lenght of my int is 5, so if i'll set the attribute of the column to unsigned zerofill, the value that will be auto incremented will have zeroes before that actual value, for example000010000200003....00010and so on and so forth...But, how can i do this in SQL? I'm using MS SQL Server Management Studio Express, but I can't find the field attributes to set it to unsigned zerofill.. I hope somebody will reply in this post.. :(
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Jan 6, 2008
Hi,I actualy have a problem with the connection to the databasefile that is stored within the websitetree by visual webdeveloper.I'm told that the attribute AttachDbFile is not understood. How have I to define which database (.mdf-file) should be taken that contains thetables that are needed in the later processing.Here the actual code:Imports Microsoft.VisualBasicImports SystemImports System.DataImports system.Data.SqlClientImports System.WebImports System.XmlPartial Class admin_news Inherits System.Web.UI.Page Protected Sub DetailsView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles DetailsView1.DataBound If DetailsView1.CurrentMode = DetailsViewMode.Insert Then DirectCast(DetailsView1.FindControl("datumTextbox"), TextBox).Text = Now End If If DetailsView1.CurrentMode = DetailsViewMode.Edit Then DirectCast(DetailsView1.FindControl("datumTextbox"), TextBox).Text = Now End If End Sub 'Prozedur wird bei Update ausgeführt Public Sub DetailsView1_Update(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceCommandEventArgs) Dim conn As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFile=C:Pferdeservice KarleApp_dataPferde.mdf;Integrated Security=True Connection Timeout=30;User Instance=True") conn.Open() Dim cmd As New SqlCommand() Dim cmd1 As New SqlCommand() cmd.Connection = conn Dim sqlUpdate As String Dim sqlUpdate1 As String sqlUpdate = "UPDATE News_Kultur set Header = " sqlUpdate &= DirectCast(DetailsView1.FindControl("Headers"), TextBox).Text sqlUpdate &= "Ueberschrift_D =" sqlUpdate &= DirectCast(DetailsView1.FindControl("Ueberschrift_D"), TextBox).Text sqlUpdate &= "Ueberschrift_E =" sqlUpdate &= DirectCast(DetailsView1.FindControl("Ueberschrift_E"), TextBox).Text sqlUpdate &= "Text_D" sqlUpdate &= DirectCast(DetailsView1.FindControl("Text_D"), TextBox).Text sqlUpdate &= "Text_E" sqlUpdate &= DirectCast(DetailsView1.FindControl("Text_E"), TextBox).Text sqlUpdate &= "WHERE (((News_Kultur.ID)=" sqlUpdate &= DirectCast(DetailsView1.FindControl("ArtikelID"), TextBox).Text cmd.CommandText = sqlUpdate sqlUpdate1 = "UPDATE News set Datum=" sqlUpdate1 &= DirectCast(DetailsView1.FindControl("datumTextbox"), TextBox).Text sqlUpdate1 &= "WHERE ID=" sqlUpdate1 &= DirectCast(DetailsView1.FindControl("NewsID"), TextBox).Text cmd.CommandType = CommandType.Text cmd1.CommandType = CommandType.Text cmd.ExecuteNonQuery() cmd1.ExecuteNonQuery() conn.Close() End SubEnd Class
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Jan 25, 2005
If I want to store day of the week (i.e. Mon), do I use datetime field or char? Also if I update #25/12/2004# to a datetime field. What is the value is the time port of the field? Thx.
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May 2, 2008
Hey i have written a constraint trigger that will return an error message, but i want to include values from a count in the error msg. i know how it would be doing in oracle
RaisError('You cannot add more then' ||Bedroom_Count|| 'student tenants into this house', 10, 1)
how do i achieve the same result in MS SERVER
regards
QUISH
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Apr 4, 2007
Hello, first time here, first time messing with SQL.
When creating a table in SQLServer2005 can you specify a column to be for a derived attribute. example a column monthlysalary and create a column that is a derived attribute - yearly salary. Is this done when creating the table and how is the syntax ?
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Jul 23, 2005
My company is working on a bond derivative portfolio analysis tool andwe're facing a problem that I did not see adequately addressed anywhere in literature. I really did RTFM. I'm very experienced inrelational modelling (10+ years) so this is not a case of notunderstanding the principles. Here is the problem stripped ofirrelevant context. The problem below is simplified for the sake of theexample so don't sweat the details.THE PROBLEM1. There are many types of bonds, each type has a different set ofattributes, different attribute names, different attribute datatypes.For example, bond A has two variables: a yearly interest rate anddate of issue, B has five variables: an interest rate and 4 specificdates on which various portions of principal need to be paid, bond Chas a set of 4 variables: interest rate in period 1, interest rate inperiod 2, the date on which the bond can be put back to the issuer,and two dates on which the bond can be called by the issue. And so on.So, on the first attempt I could represent each bond type as its owntable. For example,create table bond_type_a (rate INTEGER, issue_date DATE)create table bond_type_b (rate INTEGER, principle_date1 DATE,principle_date2 DATE, principle_date3 DATE, principle_date4 DATE)create table bond_type_c (rate1 INTEGER, rate2 INTEGER, put_date DATE,call_date DATE)This is the nice relational approach but it does not work because:2. There are many thousands of bond types thus we would have to havemany thousands of tables which is bad.3. The client needs to be able construct the bond types on the flythrough the UI and add it to the system. Obviously, it would be bad ifeach new type of bond created in the UI resulted in a new table.4. When a user loads the bond portfolio it needs to be very fast. Inthe table per type approach if a user has a 100 different types if bondin the portfolio you would have to do 100 joins. This is a heavilymulti user environment so it's a non-starter. It's impossibly slow.THE SOLUTIONSSo now that we ditched the table per bond type approach we can considerthe followiing solutions (unpleasant from the relational point ofview):1. Name-Value pairs.create table bonds (bond_id INTEGER, bond_type INTEGER, attribute_idINTEGER, value VARCHAR(255))Comment: The client does not like this approach because they want torun various kinds of reports and thus they doe not want the values tobe stored as VARCHAR. They want the DB to enforce the datatype.2. Typed Name-Value pairs.create table bonds (bond_id INTEGER, bond_type INTEGER, attribute_idINTEGER, int_val INTEGER, string_val VARCHAR(255), date_val DATE_Comment: The client does not like this because the table is sparse.Every row has two empty fields.3. Link table with table per data type.create table bonds (bond_id INTEGER)create table bond_int_data (bond_id INTEGER REFERENCES bonds(bond_id),value INTEGER)create table bond_string_data (bond_id INTEGER REFERENCESbonds(bond_id), value VARCHAR(255))create table bond_date_data (bond_id INTEGER REFERENCES bonds(bond_id),value DATE)Comment: This meets most of the requirements but it just looks ugly.4. Dynamic Mappingcreate table (bond_id INTEGER, int_val1 INTEGER, int_val2 INTEGER,date_val1 DATE, date_val2 DATE, string_val1 VARCHAR(255), string_val2VARCHAR(255))Then you have to add some dynamic mapping in your code which willprovide bond specific mapping (say, stored in an XML file). Forexample,For bond_A: yearly_rate maps to int_val1, issue_date maps to date_val1For bond_C: rate1 maps to int_val1, rate2 maps to int_val2, put_datemaps to date_val1, call_date maps to date_val2)Comment: This is very good for performance because when I load aportfolio of different bond types I can pull them all in in one SELECTstatement. However this approach has a problem that the table issparse. The number of fields of each type has to be as high as toaccmodate the most complex bond while simple bonds will only be usingtwo or three.THE QUESTIONS:Are the four approaches I described above exhaustive? Are there anyother that I overlooked?
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Jul 10, 2007
Hello All,
I am going through the Data Mining Web Control sample and have that working beautifully. I now want to add in some more functionality by allowing the end user to select the: database, model and tree to view in the web viewer (similar to the parameters in SSRS). I am trying to figure out a way to get all this data programatically. So far this is what I have:
Code Snippet
For Each newDB As Microsoft.AnalysisServices.Database In myserver.Databases
dbName = newDB.Name.ToString
myLog.AppendText("DATABASE NAME - " + dbName + vbCrLf)
For Each newStructure As Microsoft.AnalysisServices.MiningStructure In newDB.MiningStructures
structureName = newStructure.Name.ToString
myLog.AppendText(" STRUCTURE NAME [ " + structureName + " ]" + vbCrLf)
For Each newModel As Microsoft.AnalysisServices.MiningModel In newStructure.MiningModels
modelName = newModel.ToString
modelAlgorithm = newModel.Algorithm.ToString
myLog.AppendText(" MODEL NAME -" + modelName + " " + modelAlgorithm + vbCrLf)
This works beautifully but I am having a problem getting the tree name which i believe its called the "attribute_name".
I can run the following SQL against Analysis Services and get the attribute name but I would like to get all this programatically and insert into a table.
Code Snippet
SELECT attribute_name
FROM [model].content
WHERE node_type=2
I plan to run this daily and update a table. This will ultimately let me pull the structure into my data mining viewer page. This way, I will only have to have one viewer page for all models, instead of a new page for each.
Thanks,
Cam
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Apr 2, 2008
Hello everyone,
I have an xml file that looks like this:
?xml version="1.0" encoding="UTF-8"?>
<WHOLE Date="*********">
<MAIN .......</MAIN>
</WHOLE>
What i need is to find a way to retrieve the value of the attribute belonging to the root element (value of @Date) in SSIS.
Tried it using Xpath but don't know how i should configure the xml task editor or if maybe there's any other way to perform such a task.
thank you
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Nov 19, 2015
options for attribute generation. The query:
select 'Delivery' as "@DeliverableName"
,'Path'Â Â Â as "@TargetDirectoryPath"
for xml path('Deliverable'), type
generates the following:
<Deliverable DeliverableName="Delivery" TargetDirectoryPath="Path" />
We are interfacing to a third party package that only accepts single quoted attributes:
<Deliverable DeliverableName='Delivery' TargetDirectoryPath='Path' />
Is there an option which will control the enclosing quotes?
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Aug 17, 2007
Hi guys,
I'm trying to find some attributes within a database I'm working with. I'm working with SQL Server 2000, and I'm trying to find table which have a certain attribute in them. for example, If I want to see tables from my database which have an attribute called 'home_address', what would the query be? Or is there an inbuilt function in SQL Server 2000 which allows me to search this?
Thank you!
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Apr 30, 2015
Many dimensions don't have unique members. Instead, the dimension source data has duplicates at the leaf level: it's left up to SSAS to aggregate up to the actual leaf level used in hierarchies.
Every cube I've worked on in the past, a dimension is clearly defined in the source data, with uniqueness already present there: we don't make a dimension out of duplicated, sort of facty data. This kind of design seems as weird to me as an unnormalised SQL database.
Here's an example to illustrate what I mean; I'll use that Adventureworks database.
We have a Geography dimension with a Geography hierarchy. Levels go like this from top to bottom:
Country
State-Province
City
Postcode
The Geography dimension has a key attribute called Geography Key. It's there in the cube design as a dimension attribute, but it's not in any of the hierarchies, so I can't query it in MDX. But that's fine: it has the same cardinality as the lowest level (Postal Code), because the dimension has some kind of normal design.
In the cube I'm dealing with, it's all messed up. Using the AdventureWorks example above as a parallel, someone made a Geography dimension with source data keyed on [PostalCode, ExactAddress], but only wanted the dimension granularity to be PostalCode.
This makes it very hard to debug why the data in this dimension is incorrect. I can't match up the dimension members in the cube to the source data, because the dimension doesn't actually go down to the real leaf level!
So I have a dimension attribute called ExactAddressKey, but I can't query on it in MDX, because it's not part of any dimension hierarchy. Unfortunately changing any part of this cube design is not possible, so I can't even experiment with settings and see what happens.
How I could get to the leaf level of the data imported? Something like
Geography.Geography.TheInvisibleLeafLevel.Members.Properties('Key')
Or does this kind of dimension design result in SSAS discarding all the data that's more granular than the most granular attribute defined in any hierarchy - so that the data actually isn't there to be queried?
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Apr 27, 2007
I am having one question about discretization of continous attributes
values. How does it work? I need this information for my thesis. I have a
continous attribut, namely SKS, with range 0-20. When I use Microsoft
Decision Tree algorithm, this attribut split in SKS <= 18 and SKS > 18. I
want to know how does it find 18 as a number to split not the other.
One question again about Microsoft Decision Tree algorithm, about
Complexity_Penalty parameter. How does it affect the algorithm? For example,
if I set this value=0.1 what does it mean and how does it correspond with
growth tree?
Thanks a lot before for your kindness to answer my questions.. :-)
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