Loading Data Into Dimensions && Fact Tables
Jul 10, 2007Hello Everybody,
Can anybody please let me know the procedure for loading data into Dimensions & Facts? And what is the sequence of loading?
Thanks in Advance
Rajesh
ADVERTISEMENT
Dimensions Vs. Factless Fact Tables
Jan 17, 2005I am building a health care application that marries transaction-level data (health care services provided) with person-level characteristics that have a time-dimension. The person-level characteristics are diseases that the person has (these disease all have a start and some have an end date). The diseases are stored in a table in which the foreign keys are a person-identifier, a time identifier (month/year) and a surrogate for the disease. Persons can have more than one disease at a time (the diseases are NOT mutually-exclusive). There are no measures in this table. The transaction table has a foreign key for person and time (month/day/year), a procedure code (the type of service rendered) and money (the cost of the services).
How do I answer the following questions:
What is the total cost of care (the sum of all service costs) last year for persons with "disease A"?
What is the total cost of care last year for persons with "disease A" AND "disease B"?
What is the total cost of care last year for persons with "disease A" OR "disease B"?
I've tried a factless fact table but can't get it to work. If anyone has the right solution and can communicate to me before I slit my wrists, I would be greatly appreciative!!!
Analysis :: Fact Tables Appearing As Dimensions In Tabular Model
Jul 6, 2015I built my first tabular model and see that my fact tables are also appearing as dimensions. In Multi dimensional mode i could choose which are the dimensions. How do i do that in tabular model.
View 2 Replies View RelatedMapping Surrogate Keys Of Level 2 Dimensions To Fact Table In SSIS Data Flow
Aug 16, 2007
Hi,
I use lookups to map surrogate of level 1 dimensions to my fact tables in SSIS.
But how to handle a level 2 dimension with a ValidFrom and a ValidUntil date field?
I do not use an IsCurrent column, because this could problem with late arriving facts.
- In dts I used an SQL statement like this:
update SA
SET SA.DimProdRef = Dim.RecordID
FROM SAWarenEingang SA, DimProd Dim
where SA.ProduktNumber = Dim.ProduktNumber
and SA.ArtikelkontoBewegungsdatum between Dim.ValidFrom and Dim.ValidUntil
Now in SSIS I want to handle the whole thing in the data flow without using a staging table:
- Using Lookups: I would have to pass the date column for each inside the fact table into the lookup. That does not work.
- Using Execute SQL in the data flow: would be very slow, because the statement will be executed for any line in the dataflow
Any ideas?
Best regards,
Stefoon
Do We Have To Alawys Use Slowly Changing Dimensions (SCD) Component In The Data Flow For The Loading Of Table Data?
Feb 28, 2008Hi, all experts here,
Do we always have to use SCD component for the loading of data into data warehouse to handle changes of rows?
I am looking forward to hearing from you and thank you very much in advance for your help.
With best regards,
Truncate Dimensions/fact
May 17, 2007Hi,
I am relatively new to SSIS/SSAS. I have searched the forums but cannot find an answer to my question.
I created a cube in SSAS and have deployed it. Now I am trying to use SSIS to populate the cube. I have setup a DS that points to the SSAS instance - it uses OLEDB Provider for Analysis services 9.0.
When I try to use a data flow task OLE DB source to truncate the dimension/cubes I do not see the DS in the list to select?
I am finding it hard to get into the SSIS way of organizing the processing.
Any Ideas?
Multiple Fact Table And Dimensions
May 22, 2008Hi,
I have 2 fact tables and 2 dimensions (one of them is time).
fact1 ---- pk-fk ------ fact1-details-table
(date) |
| Dimension.
|
TimeDim
Is there a way to define measure group on fact1-details-table using TimeDim. Date info is only in fact1 table and not in details table.
Is namedquery joining the 2 fact tables the best solution in this case? There is so much redundancy using one fact table, so underlying sqldb uses 2 tables.
Thanks,
Chandra.
Settings For Processing Dimensions And Fact/partitions In SSIS
May 30, 2007
What are the general guildlines for choosing these settings, like paralle vs. sequential, different error configurations? The default selection for processing multiple dimensions is paralle and use default error configuration. But the default for processing multiple partitions is sequential. I cannot find anything helpful other than the definitions from the online help. TIA.
Analysis :: Linking Multiple Fact Table At Different Granularity To Same Dimensions
Jul 15, 2015I am modelling two fact tables of Actuals and Budget which are at different granularity, Actuals are at day, customer and product sub category level. Budgets are at month, Region and Product category level.
Month, Region and Product Category is present in Date, Region and Product Category dimension respectively. I have only three dimensions as Customer, Product and Date. Linking those dimensions to Actual Fact table is not an issue, what is the best way and options are there to link budget fact table to those three dimensions.
Select Data From Huge Fact Tables
Oct 12, 2006Hi,
I have a situation where I have 4 tables:
1. 2 Dimensional tables(Parent), DIM1 with 50000 rows, and DIM2 with 1000 rows
2. Fact 1 with 50 columns, 25 Million rows and with FK to DIM1 and DIM2
3. Fact 2 with 40 columns, and 25 Million rows and with FK to DIM1 & DIM2 tables.
Actually the fact 1 and fact 2 have same related data but since our Analysis cube person wanted the fact table not to have more than 50 columns we divided the tables into 2, but they have the same compound key.
Above said, I have a situation where I have to select all the columns, in both fact tables, and do a group by. I wrote the query and ran "Analyze Query in the Database Engine Tuning Advisor" for it. It gave bunch of recomendations about the statistics and indexes which I created. When I executed the query the result came up in matter of seconds, which was good.
In the query I had a condition having MarketName='Bridgeview' and DateID = 344 (FK of today-1).
When I wanted the data for last 30 days I changed to DateID in ( > FK of today -32 and < FK of today), the query responded and worked fine.
But when I changed the query to get MarketName='Aurora' (other than I used when I ran Tuning Advisor), the result returned is empty set. When I removed the MarketName condition, it is supposed to return all markets' data, but it returns only Bridgeview data.
I know the data is in the table for all markets, since reports are rendered from these fact tables for all of these markets(also ran queries to check the fact table data).
I am unable to point out the reason why the query behaves like this. It responds to the date change, but not to the MarketName change.
I really appreciate if anyone can help me point out the problem.
Thanks,
Venkat
Loading Fact Table
Feb 13, 2006Hi
I have delta loaded all the dimension tables now and each dimension table is related to fact table through a surrogate key, How do i further load a fact table. Please tell me I am stuck up here.. :( .
If any one has an example to refer please do tell me
Loading Fact Using Lookup
Aug 14, 2007
Hi All,
I have to load my fact table using data from my stage table and joining it against dimesnsions, most of my dimesions are straight joins that I can implement using Lookups , howevere in one join I am using something like this
SELECT T.Dim_Time_ID ,
SUM (Measure)
FROM [dbo].[Stage_Table] S
INNER JOIN Dim_Time T
ON SUBSTRING(T.MonthYear,1,3) = SUBSTRING(S.Time,1,3)
AND SUBSTRING(T.MonthYear,6,2) = SUBSTRING(S.Time,6,2)
Currently I am using a copy column transformation to make a copy of this column, and then using substring function in my SQL code and the Lookup Transformation joining the data to get the desired output, was wondering if there is any other (better) way of accomplishing this inside the data flow.
Thanks
Help Help : Error Loading Fact Table
Jan 3, 2008
Hi
I am strugglinh since last 2 days .SSIS is giving me torrid time
I am getting error while loadding the fact table
[Destination Fact Table [1099]] Error: An OLE DB error has occurred. Error code: 0x80040E21. An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80040E21 Description: "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.".
[Destination Fact Table [1099]] Error: The "input "OLE DB Destination Input" (1112)" failed because error code 0xC020907B occurred, and the error row disposition on "input "OLE DB Destination Input" (1112)" specifies failure on error. An error occurred on the specified object of the specified component.
[DTS.Pipeline] Error: The ProcessInput method on component "Destination Fact Table" (1099) failed with error code 0xC0209029. The identified component returned an error from the ProcessInput method. The error is specific to the component, but the error is fatal and will cause the Data Flow task to stop running.
Please help
I have already googled for this error and appied whatever tips were given.
Data Warehousing :: Populating Fact Tables With Surrogate Key From Dimension Table?
Sep 11, 2015How do I correctly populate a fact table with the surrogate key from the dimension table?
View 4 Replies View RelatedAnalysis :: Relating Multiple Fact Tables To Find Data That Exists In One But Not The Other
Nov 18, 2015I'm currently setting up a Tabular Model to do some research between several fact tables. In this example i have two fact tables (table 1 and table 2) which I've created a 1 to 1 relationship on phone number. Typically I create a relationship between these tables to find common data between the two. However, in this case I am trying to figure out the best way to model the data so that I can easily surface data from one table that does not exist in the other. I would liken this to a LEFT JOIN or a WHERE NOT EXISTS in SQL.
Table 1 has all of the data and Table 2 Only has a subset of the data from Table 1. What I'm trying to do here is display what attributes in Table 1 may play a part in records not existing in Table 2. What is the best way to model this?
Loading Fact Using Dimension W/ Ragged Hierarchy (geography)
Jul 27, 2007 I'm loading a fact table that has several geographic attributes - some are at the state level, some are at the county level, and then some are drilled farther in that that. I understand the basic concept of the dimension with the ragged hierarchy, but unsure of how to load to the fact table using lookups based on these geographic units. For example, if my geographic dimension contains 200 records for the state of Wyoming, basically a record for each fine-grain place (i.e. city/town), then how do I go about doing a county lookup. Wyoming only has 23 counties, but because of the repetitive nature of the dimension attributes that are not at the finest grain, I'll get more records in the lookup than I need. This activity repeats of course while I move up the geographic scale to state, then country. How do I configure/fill my dimension to handle these differing scales of data?
Loading Data From XML To Tables
Dec 1, 2007Hi,
I have got an xml file with size more than 2 GB. I have to load this file into tables. With 32 bit platform, I am unable to load this file using SSIS. Ram is 8 GB, but it is still bombing out. As I know it uses XML DOM Parser and tries to shred the file in memory and because of memory limition, it fails. Although I have already written code in C# using XmlTextReading object(implemetation of SAX Parser) to load data in tables, but I want to keep this loading process within the limits of DBAs.
I am stuck. Can someone guide me through the situation?
Thanks for your help!
Navnish
Loading Data Into Columns 75 - N In Tables?
Jun 23, 2004I'm having a very irritating time trying to migrate data from a COBOL system to SQL Server.
One of the A/R Master files has approx. 200 columns.
I can export this file any number of ways that will (sometimes) load partially into my database, but always when the load succeeds, columns 75 through N simply contain NULL, even though there is data in the file. When the load fails in DTS, the error is always missing column delimiter. Using BULK INSERT the error is always something like data too long at column 75.
Putting all this together, I have deduced that something isn't working if I try
to load a staging table with more than 74 columns of data. This seems like a way-too-low threshold for a robust database, especially since SQL Server is supposed to be able to handle up to 1,024 columns per table.
Has anyone ever encountered this problem?
Thanks in advance for any help
Loading Data In SQL Server To Related Tables (how)
Jul 14, 2004Hi I have a question how to load data to tables linked by Foreign Keys in MSDE/SQL server. Example:
If I have 2 tables linked (by Foreign Key):
One table:
ITEM idITEM NAMEITEM CATEGORY (FK)
1cheese 2
And another:
Category IDCATEGORY NAME
1 household
2 food
3 general
How do I enter the load of data
Do I have to enter it as
1cheese2
or is there some way of entering it as
1cheesefood
TDS wizard does not allow me to transfer to views/querries what I thought would be a normal way as I would enter data to view(relevant to Access's form) and it would update related tables . When I wrote sql to do it it said I can not update my view table as too many tables would be affected(I had lookup tables empty then though)
I am doing it by number using TDS wizard to transfer it directly to the main table but there must be a better way
Problem Loading Data From Foxpro Tables Under Multiple Folders
Oct 17, 2007
Hi,
I am trying load data from multiple Foxpro tables which are under a folder. I can have multiple folders with 17 foxpro tables. I was able to do it in DTS using ActiveX script. Here is the ACtiveX script.
'**********************************************************************
' Visual Basic ActiveX Script
'************************************************************************
Option Explicit
Dim conObj,DSNGosfbill,comObj,objRs,HostServer
Dim sFolder,sFileFolder, Details,subFolderoccur,sFileFolderDBF,sFileFolderFPT,CheckFile,dFiles,Fil
Dim fso, folderObj,subFolderList,dFolderObj
Dim objPackage,oStep,objPackage_1,oStep_1,ConnObj_001,ConnObj_004,ConnObj_031,ConnObj_032,ConnObj_033
Dim ConnObj_Hclaimb, ConnObj_HProv, ConnObj_Hids, ConnObj_HCodes, ConnObj_HSpan, ConnObj_002, ConnObj_HCHGB
Set conObj = CreateObject("ADODB.Connection")
HostServer =DTSGlobalVariables("gvServer").Value
'DSNGosfbill ="DRIVER={SQL Server};SERVER=" & HostServer & ";DATABASE=GOSFBILL"
DSNGosfbill ="DRIVER={SQL Server};SERVER=" & HostServer & ";UID=syntelhum;PWD=syntel123;DATABASE=GOSFBILL"
conObj.open DSNGosfbill
sFolder =DTSGlobalVariables("gvSSIUnzipPath").Value
CheckFile =DTSGlobalVariables("gvSSIBatchPath").Value
set comObj=CreateObject ("adodb.command")
set comObj.ActiveConnection =conObj
Function Main()
Dim Dir_Name,DirFlag
Dir_Name = ""
DirFlag = "N"
Set fso = CreateObject("Scripting.FileSystemObject")
If fso.FileExists(checkFile) Then
Else
Details = "***** Success.Lst file is missing in Batch folder. BATCH job may not be successfull or there are no folders in UNZIP directory to process. Check the batch run.*****"
Call Write_Log
Main = DTSTaskExecResult_Failure
Exit Function
End If
Set folderObj = fso.GetFolder(sFolder)
Set subFolderList = folderObj.SubFolders
For Each subFolderOccur in subFolderList
DirFlag = "Y"
Dir_Name = subFolderOccur.Name
Call Process_Dir(1,subFolderOccur.Name)
Next
If DirFlag = "N" Then
Details = "***** No directories to process in SSI UNZIP folder*****"
Call Write_Log
End If
If DirFlag = "Y" Then
Call Process_Dir(2,Dir_Name)
If objRs.Eof Then
Details = "***** No directories to process in SSI UNZIP folder*****"
Call Write_Log
End If
While not objRs.EOF
set sFileFolder = fso.GetFolder(sFolder & objRs("zip_file_name"))
Details = "***** Start-Time " & sFileFolder & " " & Date & " " & Time & "*****"
Call Write_Log
Call Update_Process_Flag("L",objRs("zip_file_name"))
'*******Execute the package for each directory****************'
'********* Call the Package**************'
Set objPackage = CreateObject("DTS.Package")
Set objPackage_1 = CreateObject("DTS.Package")
'objPackage.LoadFromSQLServer HostServer, , ,256, , , , "GOSFBILL_SSI_STAGING_LOAD"
objPackage.LoadFromSQLServer HostServer,"syntelhum","syntel123", , , , , "GOSFBILL_SSI_STAGING_LOAD"
'objPackage_1.LoadFromSQLServer HostServer, , ,256, , , , "GOSFBILL_SSI_Update_FileSource"
objPackage_1.LoadFromSQLServer HostServer,"syntelhum","syntel123", , , , , "GOSFBILL_SSI_Update_FileSource"
Set ConnObj_001 = objPackage.Connections("SSIPATH001")
ConnObj_001.DataSource = sFileFolder
Set ConnObj_002 = objPackage.Connections("SSIPATH002")
ConnObj_002.DataSource = sFileFolder
Set ConnObj_004 = objPackage.Connections("SSIPATH004")
ConnObj_004.DataSource = sFileFolder
Set ConnObj_031 = objPackage.Connections("SSIPATH031")
ConnObj_031.DataSource = sFileFolder
Set ConnObj_032 = objPackage.Connections("SSIPATH032")
ConnObj_032.DataSource = sFileFolder
Set ConnObj_033 = objPackage.Connections("SSIPATH033")
ConnObj_033.DataSource = sFileFolder
Set ConnObj_Hclaimb = objPackage.Connections("SSIPATHCLAIMB")
ConnObj_Hclaimb.DataSource = sFileFolder
Set ConnObj_HProv = objPackage.Connections("SSIPATHPROV")
ConnObj_HProv.DataSource = sFileFolder
Set ConnObj_Hids = objPackage.Connections("SSIPATHHIDS")
ConnObj_Hids.DataSource = sFileFolder
Set ConnObj_HCodes = objPackage.Connections("SSIPATHCODES")
ConnObj_HCodes.DataSource = sFileFolder
Set ConnObj_HSpan = objPackage.Connections("SSIPATHSPAN")
ConnObj_HSpan.DataSource = sFileFolder
Set ConnObj_HCHGB = objPackage.Connections("SSIPATHCHGB")
ConnObj_HCHGB.DataSource = sFileFolder
objPackage.Execute
For Each oStep In objPackage.Steps
If oStep.ExecutionResult = DTSStepExecResult_Failure Then
Details = "***** GOSFBILL_SSI_Staging_Load failed. " & Date & " " & Time & "*****"
Call Write_Log
Main = DTSTaskExecResult_Failure
Exit Function
End If
Next
Call Update_Process_Flag("X",objRs("zip_file_name"))
objPackage_1.GlobalVariables("gFileSource").Value = objRs("zip_file_name")
objPackage_1.Execute
For Each oStep_1 In objPackage_1.Steps
If oStep_1.ExecutionResult = DTSStepExecResult_Failure Then
Details = "***** GOSFBILL_SSI_Update_FileSource failed. " & Date & " " & Time & "*****"
Call Write_Log
Main = DTSTaskExecResult_Failure
Exit Function
End If
Next
'********************************************'
Details = "***** End-Time " & sFileFolder & " " & Date & " " & Time & "*****"
Call Write_Log
objPackage.Uninitialize
objPackage_1.Uninitialize
Set objPackage = Nothing
Set objPackage_1 = Nothing
sFileFolder = ""
sFileFolderDBF = ""
sFileFolderFPT = ""
objRs.MoveNext
Wend
objRs.Close
End If
Call Close_Conn
Main = DTSTaskExecResult_Success
End Function
Sub Process_Dir (Para_cntl,Dir_Name)
comObj.CommandText ="dbo.Usp_Process_Dir"
comObj.commandtype = 4
comobj.parameters.Refresh
comobj.parameters("@Para_Cntl")= para_cntl
comobj.parameters("@Dir_Nm")= Dir_Name
comobj.parameters("@File_Type")= "SSI"
If (Para_Cntl = 1)Then
comObj.Execute()
Else If Para_Cntl = 2 Then
Set objRs = comObj.Execute()
End If
End If
End Sub
Sub Update_Process_Flag(P_Flag,Dir_Name)
comObj.CommandText ="dbo.Usp_Process_Flag"
comObj.commandtype = 4
comObj.parameters.Refresh
comObj.parameters("@Process_Flag")= P_Flag
comobj.parameters("@Dir_Nm")= Dir_Name
comObj.Execute()
End Sub
Sub Write_Log
comObj.CommandText ="dbo.usp_etl_write_log"
comObj.commandtype = 4
comobj.parameters.Refresh
comobj.parameters("@Text")= Details
Comobj.parameters("@NDC_SSI_IND")= "SSI"
Comobj.parameters("@Process_Stage")= "Staging"
comObj.Execute()
End Sub
Sub Close_Conn
Set comObj = Nothing
Set objRs = Nothing
conObj.Close
Set conObj = Nothing
Set fso = Nothing
Set folderObj = Nothing
Set subFolderList = Nothing
End Sub
When I migrated this code to SSIS, its not working. How can I achive this functionality in SSIS. Any one pls help me.
Thanks in advance
Gijo
Loading Data From Same Table (oracle) In To Diff SQL Tables With In Same Package(same Query)
Nov 14, 2007
Hi,
I have Table A . we already have 80 columns . we have to add 65 more columns.
we are populating this table from oracle .and we need to populate those 65 columns again from the same table.
Is it a better idea to add those new 65 columns to the same table or new table.
If we go for the same table then loading time will be double, If I go for new table and If i am able to run both the packages which loads table data from same oracle server to difffrent sql tables then we should be good. But if we run in to temp space issues on oracle server . Then i have to load the two tables separately which consumes the same time as earlier one.
I was thinking if there is a way in SSIS where I can pull data from same oracle table in to two diff sql tables at same time?
Using String Col From Fact Tables
May 11, 2005Hi
I have a fact table in which i have a String column now i want to show it in the mdx queries..when i add it as a measure it shows some numerical values in the cube i cannot even add it as a member propeties due to some datwarehouse design constraints..so can anyone out there help me please....it urgent
Thankx in advance
regards
Hemant
Calculated Measure From 2 Fact Tables
Dec 6, 2007I have a cube with 2 fact tables and I would like to create a calculated measure that uses values from both tables like:
fact1.measure1 / fact2.measure2
I can't see how to do this?
From Dimension Tables To Fact Table
Feb 6, 2008Hi All,
What is the best way to move data from Online system tro data warehouse?
I have created 3 dimension tables(product,date and customer tables) and
I wanna create fact table and get foreign keys from dimension tables.
What is the best method to do that in SSIS?
thanks
SSIS (DImension And Fact Tables)
May 16, 2007Hi,
I am new at SSIS and I am trying to create a Datawarehouse using SSIS. I have the data files as flat files I have the Dimensional Model ready on Paper and Now I need to use the SSIS for the ETL process.
I am trying to figure out how to make dimension tables in SSIS? I mean I want to create the 5 Dimension tables and then create a Fact table out of it but I cant understand where to start? Can any one tell me how we create Dimesion tables in SSIS. Like one of the dimesion tables I need to create uses 2 flat files and is like a flattened dimension, How would I create this in SSIS?
Even if there is any tutorial which shows this step by step do let me know. I would really appreciate any guidance on this.
Thanks,
Sarang
Addding A Column To Dim And Fact Tables
Mar 6, 2008Hi All,
I want you an urgent respones, I want to add a column to a Dim_table and Fact_table, the Dim_table is sourcing from different database table and now the new column is going to source from another DB, thus without changing the structure of the table relationship can i add a column? To make it clear Dim_table has got Clomun1 from table1, Clomun2 from table2, Clomun3 From table3, Clomun4 From table4. Now I want Clomun5 From table5. How do i add and let it source from table5.
Thank you for your qiuck response.
JOIN 2 FACT Tables And ETL With SSIS 2005
Nov 21, 2007
Hello,
I have the following Datawarehouse problem (SQL Server 2005 and SSIS 2005):
2 Fact tables and both with some foreign surrogate keys of dimensions (some of them with common dimensions, other with different dimensions).
I have to create another FACT table that is an aggregation and join table between the 2 ones.
How can I do?
How To Implement Incremental Load In Fact Tables.
Feb 19, 2007Hi all,
i have a fact table which loads through package,when
i m trying to load this table by running the package,i m truncating the
fact table and loading the fresh data,instaed of this without
truncating the fact table i have to implement the incremental logic in
this.
For this i can use SCD or Conditional split,but problem
here is i have many source tables to load this fact table,so its
very difficult to trace the changes in different source tables.
can any one help me out in this??????
Copying Dimension And Fact Tables From One Database To Another...
Dec 17, 2007Hi there, my question is really simple. I want to setup an automatic task in SSIS that drops the tables in the target database and substitutes them with tables from the source database. We are talking about two or three dimension tables and one fact table. The dimension tables are pretty small. The fact table will contain, at maximum, 300,000 rows and 12 columns. I do not use delta or flag historisation btw. What tasks in SSIS would you suggest to use?
BTW I'm new to SSIS... ;-) Thanks in advance!
Load Ordering For Dimension And Fact Tables
Sep 22, 2006Hi ,
I have situation where I get data from SRC Flat file and have to load Dimensional table and also fact table, using same data flow(have no other choice since I have to unpivot some src data). Since I have to load both tables in same data flow, I have to have a way to put load ordering constraint (I know informatica allows that). Does any one have any idea on how this can be done in SSIS?
I would be really grateful.
Thanks
Query:Source From Multiple Tables To A Fact Table
Jan 19, 2006Greetings,
Iam new to SQLl2005. Iam using DTS to transfer data from my source to the warehouse. I have a couple of tables in my source whein I have to join these to tables fields and insert the same in teh warehouse fact table. I have used a Join query in my Oledb source component, What other component needs to be used to insert the data into the fact table.
I also need to extract same data with aggregation and insert the same into an another Fact table.
Kindly help.
Updating Dimensions And Cube Data
Feb 21, 2007I need to create a package that updates the dimensions and cube data from a data warehouse on daily basis. I was going to create a Data Flow that takes the data from the DW source then put it as input to a Process Dimension destination to update the dimensions and use a Process Partition destination in the same manner to update the cube, but then I came across the Analysis Services Processing Task which seems to do the job as well. I am kinda confused which way to go. Any recommendations?
View 1 Replies View RelatedAnalysis :: Role Playing Dimension Among Multiple Fact Tables
Oct 28, 2015I am modelling cube in SSAS. Cube has around 20 dimensions and 6 fact tables. Some of the dimensions are common among the fact tables. e.g. Time dimension. Fact_PNL has 3 date columns for those we have 3 role playing dimensions in the dimension usages.
Another fact table has 5 date columns for them as well we have separate role playing dimensions in dimension usage tab. We have a common dimension Company which is foreign key in all fact tables. We might need to combine the data from multiple facts to get final output.
Should i create 6 role playing dimension for each of the fact table or use the same dimension for all fact tables?
Role playing dimensions should be created when we have multiple columns pointing to the same dimension ?