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.

Similar Messages

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.

Snapshot Dimension & Fact tables

We are currently designing a logical multidimensional model from an OLTP tables.Dimension tables have monthly snapshot because some of or all the attributes might change on monthly basis.The same situation for the fact table has monthly snapshot.
I know that according to Kimball's modeling, the attributes for dimensions should be implemented using mini-dimensions and put combination key as a foreign key in the fact table but this step needs an ETL job to handle mini-dimension and other fact table.However, in our situation and according to scope limitation,there is no time to design separate ETL to handle mini-dimension.
An example for our records:
Customer:
Cust_ID
Month_ID
Attr1
Attr2
Attr3
Attr20
Installments
Installment_ID
Cust_ID
Month_ID
Attr1
Attr2
Attr3
Attr5
Measure1
Measure2
Measure3
Measure4
So, Installments table contains attributes as well as measures so what is the suitable consideration and the suitable OBIEE logical BM design ,should we consider Installments table as fact or should we divide it into dimension and fact tables ?

Xerox wrote:
So, Installments table contains attributes as well as measures so what is the suitable consideration and the suitable OBIEE logical BM design ,should we consider Installments table as fact or should we divide it into dimension and fact tables ?You already give the answer yourself: you should create an Installment dimension and a Installment fact table, using the same physical table as logical table source. The logical dimension should only contain the attributes, the logical fact should only contain measures.

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]

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.

Is it possible to take snapshot of Dashboard Designed in Xcelsius

Hi All,
Is it possible to take the snapshot of dashboard. My requirement is to save daily dashboard reading.
Thanks in advance.

i have a similar question/request and figured id post it here instead of making a new thread:
i realize you can do certain things by saving 'scenarios' but is there a solution out there to take a static snapshot of a deployed dashboard and save it within a pdf or jpeg? this way 1 user who accesses the dashboard can adjust the data how they want it to be displayed and email out this static snapshot to workers of Group A who are interested in this specific data. then the user can adjust the dashboard slightly and send a new snapshot via email to works of Group B. this way not everyone is required to access and adjust the dashboard to see the data they want. (i'm looking for a different option aside from the Print button and installing a PDFCreator print driver and also not exporting the data to XML, because itd be nicer if all users could see the fancy looking dashboard instead of reading data line for line)
any help would be greatly appreciated it. i havent found a component that can do this, so i'm guessing somehow it needs to be done in code? OP, if you'd prefer i post this in a seperate thread just let me know. don't want to intrude on yours but also figured i'd keep similar questions in similar threads.

Time machine local snapshots are taking up significant amount of hard drive space.

Hi there, my hard drive had become close to full and I got a warning message so I started a clean up. I have moved my iTunes media folder and my iPhoto picture folder to my Time Capsule external hard drive as well as deleting unnecessary apps and files. I was able to free up quite a bit of space but in looking at the hard drive in "About this Mac" the backups section is taking up 120.53 GB of my 250 GB hard drive. In my internet research it appears the "backups" section represents the Time Machine local snapshots when the designated drive is not available. Is there a way to decrease the space that the snapshots are taking up? 120 GB of my hard drive seems a bit excessive. Any advice is welcome, thanks!

what is confusing is why I would get a warning message that the disc was becoming full if there is 128GB worth of files that should have been automatically deleted?
You didn't get the warning because of that. You got it because of the files that you moved to another volume, and perhaps others. The local snapshots contain some of those files. They're available, for the time being, in case you need to restore them. Eventually they'll be deleted.

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

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

Web Previewer not working in 9iDS

I'm trying to get a generated forms module to run automatically in the web previewer after I generate it. In the Forms Generator Options dialog under the Run tab I have "Run as a Web Form" and "Run Form Automatically" boxes checked. JInitiator 1.3.1.9 is installed and I believe running - the JInitiator Control Panel dialog has the "Enable JInitiator" box checked (does this need to be running?). I have also started up OC4J.
When I generate the module I get the dialog at the end stating that generation is complete but the form does not come up in Web Previewer. Furthermore, "Run the form in Web preview mode" is not in the list of the "List Actions" box in the message window.
Any ideas?
I'm using Designer 9i release 2 (v. 9.0.2.9).

I think Note 198384.1 How To Run Generated Forms via Designer 9i
is what you are looking for.
"Checked for relevance on 19-Feb-2009"
goal: How To Run Generated Forms via Designer 9i/10g
fact: Oracle Designer 9.0/10g
fact: Design Editor
fact: Forms Generator
fact: Reports Generator
fix:
When a form module is created and generated in Designer, one of the actions
available in the Build Action list is to test run the module.
However, in the 9iDS Release 2 product set, the ability to run a Form via a
Client - Server GUI interface has been removed. Instead, forms can only be
run on a Forms Service via a web browser, whether the form is being run from
Designer or from within Forms Builder.
If a Forms Service has not been setup, or is not available to the development
system, then a "reduced version" is available via software installed as part
of 9iDS Release 2 - this comprises of the Jinitiator and OC4J listener. Steps
for settings these up from a 9iDS Release 2 install and running them on the
local, client PC, are given in Note 198297.1.
To enable the Build Action "Run Form from web server" in the Design
Editor, the following additional steps need to be taken :-
1. Forms Generator Options.
Ensure that the following File Destinations are explicitly set; it is
suggested that the same directory be used :-
Forms Options tab -> Destination of Generated Files
Menu Options tab -> Destination of Generated Files
Compile -> Form Executable From Binary -> Destination
Compile -> Menu Executable From Binary -> Destination
Run -> Web Browser : Ensure this is set to a valid web browser installed
in the local PC.
If the Web Browser setting is not entered, then the "Run Form ..." action
will not be added to the Build Action list.
In addition, the following option can be checked :-
Run -> Run Form Automatically
This will cause the form to be run automatically at the end of generation,
via the Forms Service and browser.
2. Preference Settings.
The preference settings group "Web Deployment" holds the preferences that
are used to determine what Forms Service to use when attempting to run the
form from Designer.
WEBPTH (Server form location path) = The local file path where the FMB
and FMX files have been generated to. This is the File Destination set
above in the Generator Options.
WEBURL (Server base URL) = The base URL of the Forms Service.
If a "standard" Forms Service is being used, then this URL will be provided
by the administrator of the Forms Service. However, if the "reduced version"
mentioned above is being used on the client PC, the text for this value is
constructed like so :-
"http://<Local PC Name>.<Domain>:8888/forms90/f90servlet"
where <Local PC Name> is the Full Computer Name of this PC, as defined in
the
Network Identification tab of the Systems applet in the Control Panel
(for Windows 2000)
and <Domain> is the domain which this PC has logged onto, again defined
in
Network Identification tab, for Windows 2000.
Alternatively, if the PC is running stand-alone, then can be omitted.
The rest of the string - the port number of 8888 and the virtual directory
of "/forms90/f90servlet" - are the defaults used by the "reduced version"
of the Forms Service - these are controlled by the values in the file
"cauprefs.ora" in the root directory of the 9iDS Release 2 Oracle home.
These preferences can be set at higher levels than the Module - at the
Container level, or in a preference set. However, note that if the "reduced
version" Forms Service is being used on each client PC, then the WEBURL
details will be specific to each client PC - the preference will therefore
have to be updated depending on which client PC is generating then running
the form.
Comment: where speaking about 9iDS Release 2, it is also applicable for 10g iDS

Does SQL Developer Data Modeler fit-in??

Hi Everyone,
Wish you happy new year 2011.
Does SQL Developer Data Modeler support conceptual, logical and physical in our modeling or only logical and physical?
We all use Erwin for modeling. Erwin works without database repository storing models in desktop folders and provide additional reporting. I find some place SQL Developer Data Modeler talked about repository need.
Does SQL Developer Data Modeler store the models in local/network folders instead of Database server?
What are the functions need database based repository to work with SQL Developer Data Modeler?
We are thinking of using SQL Developer Data Modeler for our conceptual, Logical, and data dictionary need. Will it help in our need?
Do we need to face any surprises on using SQL Developer Data Modeler for our need?
Thanks in sharing your experience and helping me out.
RI

1) Do we need to have Oracle database at back end to work with SQL Developer Data Modeler?No, Data Modeler use Oracle database only if you create reporting repository.
Data Modeler is free, you need database license only if you want to log service request
2) Will SQL Developer Data Modeler create any tables (as backend repository ) in Oracle database to store Model details? no
3) Do we need to create reporting schema in backend oracle database to generate reports of SQL Developer Data Modeler's items such as Entity/attributes etc?no, reports can be created out of current loaded design. However having reporting repository will give you additional benefits - history (reports can be generated for every snapshot of your designs there) and multi-user usage, you can create your own reports
4) Do we to use SQL Developer Data Modeler reverse engineer from DB2, SqlServer, Terra data etc?Data Modeler has full support for Oracle, DB2/390, DB2/UDB(LUW) and MS SQL Server. Reverse engineering from other databases (including Terra Data) is at generic JDBC level - you'll get some and some will be missing (no check constraints for example).
You can read release notes http://www.oracle.com/technetwork/developer-tools/datamodeler/ea2-releasenotes-185793.html
Philip

Data Dictonary generation from SQL Developer Data Modeler.

Hi,
How can I generate a comprehensive data dictionary using this tool in a flexible way? I tried with Export -> To CSV option but it generated lot of CSV files with lot of unnecessary information which are frustratingly scattered.
regards,
Dipankar.

Hi Dipankar,
"Export to CSV" is oriented to reporting, thus things are denormalized there. Information from logical and relational models is there, domains and logical types, usage of entities and attributes in data flows and processes in data flow diagrams. Export provides snapshot of your design and references there are valid for that snapshot.
Best regards,
Philip

SSAS Cube using multiple dimension hierarchies with same key

How can I link two separate dimension hierarchies (driven from two base dimension tables) to the same attribute in the Cube? When I try this, only the common hierarchy levels between two dimensions show up under Browse. Other levels disappear. Details are:
One SSAS 2012 Cube: Expense Daily Snapshot Each fact row has CostCentreSK attribute Two dimensions (with natural hierarchies) based on two separate DB tables. CostCentreSK is the key in both. (I know it sounds strange, but there is a good reason for this.
Be happy to share details.)
After processing when I browse the cube only the common levels between the two hierarchies show up.
Expectation was that the individual hierarchies will show each of their levels. Please help.

@Victor Rocca
Some dimensions are common, like Dates and Codes, but mostly they are their own dimensions. Visits
and Actions facts have foreign keys from Events in them, so I would prefer to join directly, anyway.

SSRS subreport configurations

How to call subreport in main report when subreport is being rendered as snapshot.
I am able to configure subreport in mail report when it is not running as a snapshot and getting the required results.
I am passing region and office as parameter to subreports and I have grouped the data in main report using region and office.
The moment I schedule the subreport to run as snapshot, it gives error in the main report.
Please help me with this issue

Hi shamam,
The behavior of subreport could not render inside of main report if it is set the render from a report snapshot is by design, for more information please refer to the following link:
Reporting Services subreports and snapshots:
http://connect.microsoft.com/SQLServer/feedback/details/196067/reporting-services-subreports-and-snapshots
In your scenario, you can choose to add the "Go to Report" action to link to the subreport which render from a snapshot, this will works fine.
If you have any concern about it, please submit a feedback at
http://connect.microsoft.com/SQLServer/Feedback and hope Microsoft improve this feature in the next service pack or product release.
Any questions, please feel free to ask.
Regards,
Vicky Liu
Vicky Liu
TechNet Community Support

Snapshot / Trend Fact Design

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