Fact design accumulative snapshot

This is Loan domain and I am trying to create an accumulative snap shot table at loan level with following columns
on 01-jan-2011 this snap shot would be like
LOAN_KEY,LOAN_DATE,DEPOSIT_DATE,RETURN_DATE,CLEAR_DATE,WRITEOFF_DATE,LOAN_PAIDOFF_DATE,
LOAN_STATUS,CHECK_STAUS,
DUE_AMT,RTN_FEE,LATE_FEE
sample data
10001,01-jan-2011,null,null,null,null,null,
Open,Held,
2000,0,0on 03-Feb-2011 this snap shot would be like
LOAN_KEY,LOAN_DATE,DEPOSIT_DATE,RETURN_DATE,CLEAR_DATE,WRITEOFF_DATE,LOAN_PAIDOFF_DATE,
LOAN_STATUS,CHECK_STAUS,
DUE_AMT,RTN_FEE,LATE_FEE
sample data
10001,01-jan-2011,30-jan-2011,null,03-feb-2011,null,30-jan-2011,
Close,Clear,
0,0,0Do I need to store only the current day snapshot of this information or I need to store this information for each business day(i.e. daily?)
What is the best practice for this?
Thanks,
Hesh.

Hi if the data loaded in the data mart is only having percentages and not having constituents then they cannot be added to any other levels other than the once at which they are loaded. The only way is to ensure that that data to be loaded is the constituents as shown in example.
Suppose user needs to see Gross Profitability which is ( Revenue - Cost)/ Revenue
I should not be creating a measure called Gross Profitability if i require reports of gross profitability at different context. Rather I should create Revenue and Cost as my measures so that i can calculate the Gross Profitability at any level required.

Similar Messages

OBIEE MTD, YTD, QTD Functions for an accumulating snapshot fact

Hello all,
I would be really grateful if someone can help me out with this:
I have an accumulating snapshot fact with the foll fields:
SALE(Sale_date, Org_ID, Proj_ID, Emp_ID, Cust_ID, Amt, Eff_St_Dt, Eff_End_Dt)
Now because it's an accumulating snapshot, there are multiple entries but with different date_stamps. For example a sale was booked on 1-JAN-2010 as $30,000 but was updated in Feb 2010 to $45,000.
This is my question: the MTD, QTD and YTD time series calculations all calculate with 2 parameters, the fact and the time dimension.
How do I calculate the XTD values with sale_date and the effective_dates in mind? because now I have more than just the time dimension. Can anyone suggest how it will be calculated?
Thanks,
Abhishek

Hi Kishore,
I made a change over here and the error is not occuring now. But different error is occuring.
Instead of year (which is default root level in Dimension), I picked either Month or Quarter and I am not facing the error (Invalid Expression).
I have a questions now
1) is it that we cannot use a column defined as Default Root level in Todate and AGO functions?
The other part is I have a new error ([nQSError: 22038] Function TODATE requires at least one measure attribute in its first argument.)
My fact column (FACT Table as partner_id,Id (primary_key) and ..). For the fact column to be the first parameter is that is should have some aggregation rule?
Please let me know...
Thanking you in Advance
Regards
(S.Prashant)

Snapshot / Trend Fact Design

I have a fact table that has the file sizes of all the files in the organisation and it has 10 billion rows. Now we have a requirement of see the trend of these files growth over a period of time.
If i use snapshot date and use this to link a dimension with snapshot ( monthly or yearly ) that will solve my problem to see trend but that means no of rows in fact will be multiplied by snapshots that will lead to performance issues and not feasible.Is
there any alternative solution to solve this in terms of design and reporting, please help
File Fact : 10 Billion rows
ID | FileName | Size(GB) | Snapshot Date

Hi if the data loaded in the data mart is only having percentages and not having constituents then they cannot be added to any other levels other than the once at which they are loaded. The only way is to ensure that that data to be loaded is the constituents as shown in example.
Suppose user needs to see Gross Profitability which is ( Revenue - Cost)/ Revenue
I should not be creating a measure called Gross Profitability if i require reports of gross profitability at different context. Rather I should create Revenue and Cost as my measures so that i can calculate the Gross Profitability at any level required.

Fact Design , Any Aggragation ?

Hi ,
this is my Fact Table
| ProjectID | ProjectSeq | PlanPercentYearly | month | PlanPercentMonthly |
| | | | | |
| 1 | 1 | 100 | 1 | 10 |
| 1 | 1 | 100 | 1 | 10 |
| 1 | 1 | 100 | 1 | 5 |
| 1 | 2 | 100 | 3 | 20 |
| 1 | 2 | 100 | 5 | 10 |
| 1 | 2 | 100 | 6 | 5 |
| 1 | 2 | 100 | 7 | 5 |
| 1 | 3 | 100 | 6 | 20 |
| 1 | 3 | 100 | 7 | 10 |
| 1 | 3 | 100 | 8 | 15 |
Ok now i group by ProjectSequece with by Sequence Dimension
and this is my target resalt and I have sum(PlanPercentMonthly)
| ProjectID | ProjectSeq | PlanPercentYearly | PlanPercentMonthly |
| 1 | 1 | 100 | 15 |
| 1 | 2 | 100 | 40 |
| 1 | 3 | 100 | 45 |
But PlanPercentYearly is my problem
i don't know how can i make that output by any formula or any Aggregation
or might be i had wrong design fact table ?
Thank for your kind for newbie in DW
And sorry about my weak English language.
Regard.
Edited by: BlarBlarBlar on Mar 21, 2011 9:57 PM
Edited by: BlarBlarBlar on Mar 22, 2011 12:01 AM

Hi if the data loaded in the data mart is only having percentages and not having constituents then they cannot be added to any other levels other than the once at which they are loaded. The only way is to ensure that that data to be loaded is the constituents as shown in example.
Suppose user needs to see Gross Profitability which is ( Revenue - Cost)/ Revenue
I should not be creating a measure called Gross Profitability if i require reports of gross profitability at different context. Rather I should create Revenue and Cost as my measures so that i can calculate the Gross Profitability at any level required.

Cube/Fact Design

I am trying to build facts/dimensions relating to university enrollment. I have designed dimensions for student info, course info and section info. I was trying to load actual enrollment data in to the fact table. I added a measure for grades, but when I load that particular measure, the fact table doesn't seem to have enough information to associate the grade with the student/class. I believe my fact table is designed wrong. Does anyone have information on what data should be loaded there in this context?
Additionally, when I try to build a mapping to the fact table, I can only move data in to the measures (not the foreign keys) which makes sense, however, it is only through the FKs that the data can match up with the proper student, etc...
Any help or advice is strongly appreciated.
Thanks,
Brandon

Brandon,
First requirement to build a fact table with dimensions is indeed to be able to relate the source of the fact records with the tables that build up the dimensions. Would there not be information somewhere (perhaps in other tables, another system or even flat files) that relates student IDs with courses? I would imagine that is the very least you can expect...
Mark.

How to design a snapshot Table / Report in OBIEE

Hello All,
I am currently developing a report in which I need to compare the Cost at diff times.
Year view should compare current cost with year ago cost for the same item, similarly Month view shoud compare current cost with month ago cost.
Any help to design this report is highly appreciated.
Thanks.

Hi,
I have created two measures for Yago cost and Mago cost.
But When I run a request using any of these measures I am getting the below error.
Error Codes: OPR4ONWY:U9IM8TAC:OI2DL65P
State: HY000. Code: 10058. [NQODBC] [SQL_STATE: HY000] [nQSError: 10058] A general error has occurred. [nQSError: 22047]
The Dimension used in AGO function must be referenced in the query. (HY000)
I tried to run the request including the dimensions used in AGO.
As suggested in the Metalink, I have added "<ReportAggregateEnabled>true</ReportAggregateEnabled>" to instance config and refreshed PS.
Still I am getting the same error. Can you please guide to resolve this issue.
Srikanth,
I haven't tried your solution yet.
Thanks.

Snapshot of Fact Table

I'm working on a snapshot of a Fact. The snapshot's purpose is to record changes of columns x,y, and z. If either x,y, or z change in the Fact, a new row should be added to the Snapshot and flag columns for the three columns should read Y or N (depending
on which of the three columns changed).
My approach was to simply compare columns x,y, and z between extract date and dates from the day before(could be mins or secs before, nonetheless, I just want a variance in time).
My thought was to use a CASE statement in the source query:
SELECT CASE WHEN [x] <> (SELECT [x] FROM dw.dbo.FCT_TABLE WHERE LAST_MOD_DATE = DATEADD(DAY,-1,[LAST_MOD_DATE])) then 'Y' else 'N' end as FLAG_X
But I don't seem to be getting the correct results. Any suggestions? Ultimately, I will apply the logic to SSIS

This WHERE clause
WHERE LAST_MOD_DATE = DATEADD(DAY,-1,[LAST_MOD_DATE])
will of course never match any rows.
Supposedly, you mean LAST_MOD_DATE from two different tables, but you need to tell the computer that. Computers are not very smart.
Also, what data type is LAST_MOD_DATE? If it's datetime or datetime2 and includes a time portion, your changes for a hit are bad.
If x can be NULL, the logic needs to be more sophisticated.
You could of course also consider Change Data Capture (if you are on Enterprise Edition) of Change Tracking (any edition), but it may be too heavy artillery, if this is your only snapshot.
Erland Sommarskog, SQL Server MVP, [email protected]

Should I relate a fact table to a fact table to a dimension table?

Hi All,
I'm designing a dimensional data mart for a client and I'm now forced to think about many-to-many relationships, among other complexities I haven't dealt with until now. Said client needs to be able to analyze contracts, subcontracts, bids, and bidders.
Each contract and subcontract can have multiple bids. Each bidder can only submit a single bid for any single contract or subcontract. And each bidder can submit a bid for any number of contracts and subcontracts.
My initial plan is this: FactContracts, with FactContractKey, ContractID, SubContractID; FactBids, with FactBidKey, FactContractKey, and BidderKey; finally, DimBidders, with BidderKey.
I've left out degenerate dimensions and original business keys only to keep this message short. Please let me know if more info is required, I really need a qualified designer or architect to advise me but I don't know anybody else that's accessible.
Thanks,
Eric B.

Thanks, SQLBIGuyMN, you answered our question. It makes sense, too, because bids are only analyzed if they've been accepted and contracted, and they would only be related to the bidder through the contracts fact. I think we've also determined that contracts
needs to be an Accumulating Snapshot Table.
Thanks again,
Eric B.

Snapshots and dates

We have an accumulating snapshot fact table. We take a snapshot of data once a week.
In our fact table we record Help Desk Ticket information, such as Time Open and Ticket Status. Ticket Status is a FK back to the Ticket Status dimension so that we can slice on the status.
For a given month a particular Help Desk Ticket will have four records (possibly five) in the fact table.
So for Help Desk Ticket 123 my entries might look like:
Snapshot Date: 4/26/2014, Status: Open, DaysOpen: 5
Snapshot Date: 5/3/2014, Status: Open, DaysOpen: 12
Snapshot Date: 5/10/2014, Status: Open, DaysOpen: 19
Snapshot Date: 5/17/2014, Status: Open, DaysOpen: 26
Snapshot Date: 5/24/2014, Status: Closed, DaysOpen: 29
Snapshot Date: 5/31/2014, Status: Closed, DaysOpen: 29
Snapshot Date: 6/7/2014, Status: Closed, DaysOpen: 29
Snapshot Date: 6/14/2014, Status: Closed, DaysOpen: 29
When I write MDX statements to retrieve all Open tickets by month for the current year, I want my MDX to only look at the last snapshot of the month and look at its status. So for the above example, the ticket should show as Open for April only.
Likewise if I want to show Open tickets for the year by quarter the above ticket would not show at all because at the end of the quarter it was closed.
I'm thinking I need to do a SCOPE statement within the cube MDX so that the measure [Ticket Count] is applied at whatever level I'm at in the [Date Snapshot].[Year Hierarchy] structure (you're normal Year, Quarter, Month, Day hierarchy).
Is there another way or a better way to do this?

Didn't even need to do a scope statement. Here's what I used and it appears to met my needs:
CREATE DYNAMIC SET CURRENTCUBE.[Snapshot End of Month]
AS
GENERATE
[Date Snapshot].[Year Hierarchy].[Month].Members
, BOTTOMCOUNT
[Date Snapshot].[Year Hierarchy].CurrentMember
* NONEMPTY
[Date Snapshot].[Standard Date].[Standard Date]
, [Number of Tickets]
, 1
, DISPLAY_FOLDER = 'Named Sets';

About snapshot types

hi all,
what is periodic snapshot and accumulating snapshot.
thanks and regards,
sri ram.

snapshots are a picture of system in a particular time. they holds info about top sqls by cpu, by db time, what the memory components' area size etc...
in periodic snapshots, (at default) every one hour, system take a picture and save it. so you can find info about what the top sqls was 5 hours ago.
in accumulating snapshot, a snapshot created first and then every one hour when a snapshot is taken, this info added to created one and averege info is shown in snapshot. for ex; first time buffer cache was 100M, at second snapshot, it was 120M then you will see 110M in your first snapshot anymore and this will go on by adding new snapshots. so you can find what the top 10 sql was in your system from 08:00 to 13:00.
sorry for my bad english.
Edited by: Mustafa KALAYCI on 06.Eki.2010 15:45

Need Suggestion on OLAP model

HI All,
We do have a reqirement to design a OLAP model for consolidating the issues identified on ASSETS from various sources\system.
Let us take one sample record;
Issue | Asset | Status |Priority |St_DT |End_Dt
ISS1 | ASS1,ASS2 |Open |High |1-Jan-13 |NULL
We have designed the below model for this scenario:
Dimension_Asset: Conformed dimesion for assets.
Dimension_Asset_Group: Since each issue can have multiple assets we have designed a group table.
Dimension_Date: Conformed and role playing dimension for start and end date
Fact_Issue: Issue_ID,Asset_Group_ID,Status,Priority,St_DT,End_DT
Please clarify the below doubts ( if at all the above model is good to go)
1. As of now client is not intersted in the history of the issue, if at all in future it requires then is it good to go with this model, by have multiple entries in the fact_issue table for same issue. Also on top of it can we build a accumulating snapshot fact table.
2. Actually issues will be associated with many deatiled text and lattributes. Do we need to capture this information in the FACT_ISSUE table as per this model. As of now we planned to move those information to another table called Dimension_Issue (though we cannot call it as dimension since its not repitative data in the fact table).

pinay39 wrote:
There's no model number i can find at the bottom, just the type and serial number.
Welcome to the forum!
It kind of looks like one of the 500s. What's the type number you found on the bottom?
Message Edited by nonny on 10-29-2008 09:36 PM
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Hierarchy in a Dimension - like father/sons

Hello,
I have a standard Oracle rpd model for Service Request (Dim) and Service Request (facts) - that is from OBI Applications.
Facts SR has connection with several other dimensions.
In this customer they have created in the source application (Siebel) an hierarchy in SR, so a parent SR has several child SR.
When modeling this situation in the Warehouse star I did create a new Parent SR Dim connected with a child SR Dim > So I understand this would create a snowflake model.
Now... when trying to query with Answers: Parent SR x Facts >> There are NO records returned.
When querying Child SR x Facts >> OK records returned.
I could eventually create a Fact FK pointing to the Parent SR... but this seems very strange and unorthodox to me.
Would this be a good way of modeling ?
Would it be better to just keep one SR Dim and using Hierarchy Dimension in the rpd try to build the Hierarchy parent x child (like they do in Time dimension f.example) ?
Customer would like to have in a Answer report something like:
Parent - Childs
A X
A Y
A Z
Txs for any hints.
Antonio

Hi Lombo,
I have not worked with SR Modues, but I guess the fact will be of "Accumulating Snapshot Fact" with multiple dates. Choosing SNF to Star totally depends on Business needs and the types of users and data usage.
Creating Parent SR Dim vs SR DIM (with both Parent and Child merger)
1) Cardinality between Parent SR to Child SR. For very high cardinality between Parent SR to Child SR then I would merge Parent with Child.
2) Use snowflake if most of the dimensional data's are sparse, mainly in saving space.
3) Next is the type of users. If you have lots of ad-hoc users who can query against the DB, then ease of use becomes a key desicion maker.
4) Of course you would have to find the optimal balance between space and performance.
And BTW nothing is wrong, in a SQL world I won't say that with SNF i cannot achieve something but can achieve that in Star :).
Regards,
Bharath

How do you add non-Garage band instruments into a Logic project so that you can hear them on playback?

How do you add non-Garage band instruments (orchestral instruments) into a Logic Pro (8) project so that you can hear those insrtruments' sounds on playback? I've tried to understand and follow the Logic Pro 8 User Manual, but the process comes off as so complex and the writing so technical that it does not help but only confuses.
To be precise - I want to add instruments (orchestral) that are not offered in the current Garage band menu which is offered in the Mixer's channel strip menus for Logic Pro 8. To be clear, the instruments that are offered are Bass / Drum Kits / Guitars / Mallets / Organs / Pianos and Keyboards / Synth Basics / Synth Leads / Synth Pads. Most of these that I've tried seem to work and give their characteristic sound when placed in a particular channel and playback is clicked.
However - there is one orchestra instrument offered in the standard Logic Pro 8 Mixer channel menu and it's the item labelled "Performance - 000 flute 1 or 001 flute 1." And it is this instrument that presents a problem. When I click on it and choose it from the menu and enter it as the instrument of choice for a specfic channel / track in my Logic Pro project arrangement, when playing back the music for the overall piece this particular track, the flute, does not playback and produce the notes (Midi events) in the track in the sound of the flute. Instead, nothing comes out at all. I can't imagine why this does not work. Any ideas, anyone? Again, when choosing this instrument for a track and clicking the playback no flute sound is forthcoming. Why not? I have not tried them all, but when most of the other various types of keyboards, such as an electric piano or an organ, are chosen for a track the playback successfully renders the sound of these instruments. Why then does playback not produce the sound of the flute when it has clearly been chosen to play and sound the Midi events given it?
Anyway, the overall, larger issue for me is the inability I have to choose and get non-Garageband instruments (largely orchestral) to play the Midi events given on various tracks. If my guess is correct then technically, orchestral instruments not offered in the standard Logic Pro 8 Garageband Mixer channel menu are referred to as external Midi sampled instruments - still, IMHO the process is not clearly spelled out in the User Manual. The simple step by step process whereby a non-Garage band instrument, say an orchestral instrument, is placed in a channel replete with Midi event (notes) waiting to be played should be easy, logical and given in a simple to follow format, but is not.
What with all the talk of routes, busses, auxillary channels, GM devices, GM mixers, audio bins, libraries and audio files this Logic Pro User is confused to the max. Can someone please help me and, in simple English, describe the step by step process whereby presumably external sampled orchestral instruments can be successfully employed, in any given Logic Pro arrangement project, to render their characteristic sounds upon playback?
On my two Macs, one a laptop and one a much larger Mac, I have any number of the GSO (Garritan Symphony Orceshtra) and Vienna Symphony Orchestra instrument library samples - and yet - I've yet to figure out how to actually get them INTO a Logic Pro project of any kind! To put this as a question, even as a humble request, how can I make good use of these orchestral sample libraries in a Logic Pro project? Can someone steer my to a clear resolution of this issue. I'd sincerely appreciate it! Thanks all!
DavidBacon

DavidBacon wrote:
Anyway, the overall, larger issue for me is the inability I have to choose and get non-Garageband instruments (largely orchestral) to play the Midi events given on various tracks. If my guess is correct then technically, orchestral instruments not offered in the standard Logic Pro 8 Garageband Mixer channel menu are referred to as external Midi sampled instruments - still, IMHO the process is not clearly spelled out in the User Manual. The simple step by step process whereby a non-Garage band instrument, say an orchestral instrument, is placed in a channel replete with Midi event (notes) waiting to be played should be easy, logical and given in a simple to follow format, but is not.
What with all the talk of routes, busses, auxillary channels, GM devices, GM mixers, audio bins, libraries and audio files this Logic Pro User is confused to the max.
David, you understand that this is professional software and is not necessarily meant to be easy but is in fact designed to give the professional user as many choices as possible, that's why it's in the Pro Apps section. You WILL need to learn about buses, GM Devices, Audio Bins, Libraries...etc..etc if you intend to use Logic.
That said, you are looking in the wrong place in the channel strip.
May I offer you advice?
Go here:
http://documentation.apple.com/en/logicpro/
Open "Exploring Logic Pro" (a short PDF Document). Pay special attention to chapter 3. Also pay special attention to the included graphics of the channel strips.
I encourage you to read the whole document as it will clear up many things... even though it's a Logic 9 document.
Post back

What are the different type of Granularity

what are the different type of Granularity
a.     Transaction
b.     Periodic Snapshot
c.     Accumulating Snapshot
d.     None of the above

Hi,
Check the following KMs
LKM File to Teradata
IKM File to Teradata
ODI have some basic transformation like Joiner, Filter etc .
You can refer the User Guide for details about these transformations .
Thanks,
Sutirtha

How do you save customized drum kits as a usable choice in the drum kit setting selection menu

i've loaded samples from my own personal sound banks into the Drag & Drop Samples Kit and i would like to be able to save them as a customized drum kit so that i can select that particular kit when i compose songs in Logic.

DavidBacon wrote:
Anyway, the overall, larger issue for me is the inability I have to choose and get non-Garageband instruments (largely orchestral) to play the Midi events given on various tracks. If my guess is correct then technically, orchestral instruments not offered in the standard Logic Pro 8 Garageband Mixer channel menu are referred to as external Midi sampled instruments - still, IMHO the process is not clearly spelled out in the User Manual. The simple step by step process whereby a non-Garage band instrument, say an orchestral instrument, is placed in a channel replete with Midi event (notes) waiting to be played should be easy, logical and given in a simple to follow format, but is not.
What with all the talk of routes, busses, auxillary channels, GM devices, GM mixers, audio bins, libraries and audio files this Logic Pro User is confused to the max.
David, you understand that this is professional software and is not necessarily meant to be easy but is in fact designed to give the professional user as many choices as possible, that's why it's in the Pro Apps section. You WILL need to learn about buses, GM Devices, Audio Bins, Libraries...etc..etc if you intend to use Logic.
That said, you are looking in the wrong place in the channel strip.
May I offer you advice?
Go here:
http://documentation.apple.com/en/logicpro/
Open "Exploring Logic Pro" (a short PDF Document). Pay special attention to chapter 3. Also pay special attention to the included graphics of the channel strips.
I encourage you to read the whole document as it will clear up many things... even though it's a Logic 9 document.
Post back

Fact design accumulative snapshot

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