Using Views in Real time mappings?

Hello fellow OW Builders!
I have been investigating OWB 11gR2 as a solution for data warehousing. The requirement I have is to produce a real-time system, to propagate any changes in the source data as quickly as possible, to the targets. The problem I have is, I only have access to the source data via views on the database. I can create 'regular' mappings using views as a data source, as part of a batch load process. However, I cannot set up Queue Operators (required for real-time mappings), using views as the data source.
I am hoping there are some OWB gurus out there, who might be able to suggest a suitable approach, for real-time data warehousing, using views as a data source? If it helps with your creativity, it doesn't have to be an OWB solution (although I think that would be preferable). The database version for the source and targets is 10gR2, should that be of interest.
Thanks in advance for your time.
Edited by: user13130528 on 17-Aug-2010 06:49

Has this completely foxed everyone?! Even if the answer is 'no way, Jose', it would be good to know, so I can ditch OWB and concentrate on finding another solution.
Thanks!

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BAdI........How are they used in the real time scenario.

Im a rookie in ABAP development and i was wondering that how we use the BAdI enhancement technique in the real time scenarios. Like do we get create them or we have few already built BAdI's which we work on? Can any body please explain how this works.

Hi Ramana,
Business add-ins are enhancements to the standard version of the system.
Business Add-In is a new SAP enhancement technique based on ABAP Objects.
They can be inserted into the SAP system based on specific user requirements.
Each Business Add-In has:
at least one Business Add-In definition
a Business Add-In interface
a Business Add-In class that implements the interface
In order to enhance a program, a Business Add-In must first be defined
Subsequently two classes are automatically generated:
An interface with IF_EX_ inserted between the first and second characters of the BADI name.
An adapter class with CL_EX_ inserted between the first and second characters of the BADI name.
The Application developer creates an interface for this Add-In.
There are multiple ways of searching for BADI.
Finding BADI Using CL_EXITHANDLER=>GET_INSTANCE
Finding BADI Using SQL Trace (TCODE-ST05).
Finding BADI Using Repository Information System (TCODE- SE84).
1. Go to the Transaction, for which we want to find the BADI, take the example of Transaction VD02. Click on System->Status. Double click on the program name. Once inside the program search for CL_EXITHANDLER=>GET_INSTANCE.
Make sure the radio button In main program is checked. A list of all the programs with call to the BADIs will be listed.
The export parameter EXIT_NAME for the method GET_INSTANCE of class CL_EXITHANDLER will have the user exit assigned to it. The changing parameter INSTANCE will have the interface assigned to it. Double click on the method to enter the source code.Definition of Instance would give you the Interface name.
2. Start transaction ST05 (Performance Analysis).
Set flag field "Buffer trace"
Remark: We need to trace also the buffer calls, because BADI database tables are buffered. (Especially view V_EXT_IMP and V_EXT_ACT)
Push the button "Activate Trace". Start transaction VA02 in a new GUI session. Go back to the Performance trace session.
Push the button "Deactivate Trace".
Push the button "Display Trace".
The popup screen "Set Restrictions for Displaying Trace" appears.
Now, filter the trace on Objects:
V_EXT_IMP
V_EXT_ACT
Push button "Multiple selections" button behind field Objects
Fill: V_EXT_IMP and V_EXT_ACT
All the interface class names of view V_EXT_IMP start with IF_EX_. This is the standard SAP prefix for BADI class interfaces. The BADI name is after the IF_EX_.
So the BADI name of IF_EX_CUSTOMER_ADD_DATA is CUSTOMER_ADD_DATA
3. Go to Maintain Transaction (TCODE- SE93).
Enter the Transaction VD02 for which you want to find BADI.
Click on the Display push buttons.
Get the Package Name. (Package VS in this case)
Go to TCode: SE84->Enhancements->Business Add-inns->Definition
Enter the Package Name and Execute.
Here you get a list of all the Enhancement BADIs for the given package MB.
Have a look at http://help.sap.com/saphelp_nw04/helpdata/en/04/f3683c05ea4464e10000000a114084/content.htm
http://help.sap.com/saphelp_erp2005/helpdata/en/73/7e7941601b1d09e10000000a155106/frameset.htm
http://support.sas.com/rnd/papers/sugi30/SAP.ppt
http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/abapindx.htm
http://members.aol.com/_ht_a/skarkada/sap/
http://www.ct-software.com/reportpool_frame.htm
http://www.saphelp.com/SAP_Technical.htm
http://www.kabai.com/abaps/q.htm
http://www.guidancetech.com/people/holland/sap/abap/
http://www.planetsap.com/download_abap_programs.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c8/1975cc43b111d1896f0000e8322d00/content.htm
/people/thomas.weiss/blog/2006/04/03/how-to-define-a-new-badi-within-the-enhancement-framework--part-3-of-the-series
/people/thomas.weiss/blog/2006/04/18/how-to-implement-a-badi-and-how-to-use-a-filter--part-4-of-the-series-on-the-new-enhancement-framework
How to develop BADI
Reward if useful.
Thanks
Aneesh.

How do I sample a frequency or voice input using labview in real time?

This is my first time using labview to sample real-time! I'm trying to setup a microphone, so that when a voice is spoken to the mic I can sample the frequency, and
further customize the data in labview. The final goal is to amplify the frequency and output it to a speaker. If possible via labview. My question is do I need some type of evaluation board , microcontroller, to sample the frequencies and save the data sample to labview. Also, how would I go by doing this in real-time, or when the person is speaking to the mic the voice/frequency can be modified in labview instantenaeously. If someone can give me a step-by-step way of performing this, please let me know.
I currently use Labview 8.2 and 8.5

There are many LabVIEW shipping examples that are built to acquire sound samples from a microphone attached to a sound card. There is also an example on how to play a sound file directly to speakers, that you should definitely take a look at. These examples VIs are found in the Sound folder which is under Hardware Input and Output in the NI Example Finder. Depending on how advanced your frequency analysis will be, you might want to look into purchasing the Sound and Vibration Toolkit. For your specific application, it doesn't sound like you will need the LabVIEW Real-Time Module, you should be able to obtain very accurate results without it. Please view the article linked below for more information on this toolkit. Thanks!
Sound and Vibration Toolkit for LabVIEW
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3D position using camera system - real time

Greetings!
I amtrying to use Labview to track an object in 3D space. I am using threehigh speed cameras which are connected via a framegrabber to my PC. Theidea is that I want to be able to throw an object, let’s say a ball, and haveLabview detect the motion and return real time stats on the object (location inxyz and the velocity vector). The object should be about the size of abird as this will be the final object tracked.
I amcurrently constrained as to where the cameras can be. They have to bepositioned in a horizontal line beside one another, but they can be turned toany angle I see fit.
Ihave some ideas of how to approach this but since this is my first visualproject I am a little unsure what the best method will be.
Oneidea I had was to have one camera centered facing strait forward and one cameraon either side if it turned 45 degrees toward the center line of vision. Thenthe idea would be to calculate the actual x-y-z position based on the geometryof the camera. However this method isless than flexable.
Anotheridea was to eliminate restrictions on the camera positions and have some sortof target system set up which would then "calibrate" the cameras foreach particular setup. I am thinkingof x and y rulers printed out and hung from the ceiling. Then, using the distances between x ruler markingscompared to y ruler markings to determine the camera angle and what the zcomponent should be. Maybe use a basketball to calibrate instead?
Solutions?Working code that takes jpegs from three saved camera files? Any help atall in 3D positioning would be much appreciated.
Thanks inadvance!!
~Chad

Chad,
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Can you arrange that the object is always in the field of view of all three cameras? Do the cameras/lenses distort off-axis images?
If the object is a known size and has a simple geometric shape (sphere, cube, tetrahedron), you may be able to also use size of image to get an estimate of distance. Rotation of more complex shapes makes for a difficult calculation.
The rulers might be helpful if the object size is known. If the object size is unknown or variable, the challenge is much greater.
Lynn

Using partition in real time

Hi i am new to essbase
How we can use replicate and transperent partition option in the real time.
kindly help me in understanding this concept.

Hi,
We will use transparent partition as an interface to read the data from the source cube
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We can use this technique for the improved maintenance of a large data bases by splitting them into smaller databases to allow the operations on the smaller databases and stiil facilitate the users as they see in a single data base.
We can use this for the improved security maintenance.
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I will explain you a classic example.
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As part of year end activity, we need to move the previous year data to the History cube and the same to be deleted from the current cube.
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I hope this will suffice.

Odd behavior on web template used to update real-time cubes

Hello all
This is my first time posting on this forum so please excuse any blunders.
I have a situation wherein 2 queries (one built on an aggregate level which is set up on a multiprovider containing a real-time cube and the other built on an aggregate level set up directly on a real-time cube) are being used to update data. For both of these queries, I'm trying to fill in fields such as user, created by, time, date etc. These fields are being filled in the custom class "ZCL_LOC_CR_LINE_ITEM" and all of the settings are correct for the aggregation level/infoproviders.
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Regards
Sam

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Regarding the second question, for a query to be input-ready:
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- note that when using a mulitiprovider, it is necessary to specify the real-time infocube name in the planning cell/row/col selections
If all of the above are met, try drilling down in the query once it is presented and see if anything is unaccounted for

Useful View Options in Time Machine: Changed Files?

I set up time machine and a day later I can browse around. Very cool graphics.
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There's obviously a bit of a technical issue with knowing the changes from the latest backup to the current machine state. But going the other way TM must have that information.

As far as I'm aware the start & stop times are stored in the library database, not the media files. If you backup/restore/transfer the whole library then the settings are included. If you create a complete copy of your iTunes folder on another drive you can connect to that copy by holding down option/alt as you start iTunes so you can check that everything is working properly before you send the Macbook away.
tt2

Timer used by periodic real-time threads

Hi,
periodic threads may be released periodically, for example with waitForNextPeriod(). Is this periodic release realized by a timer, like an instance of the class PeriodicTimer?
So knowing the accuracy of a periodic timer on a system may help to estimate the accuracy of wfnp()?
Thanks,
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Nope, waitForNextPeriod need have no connection to other timer functionality.
In Java RTS on Solaris, waitForNextPeriod is implemented through our Cyclic driver, whereas Timers are implemented using POSIX timers.
That said, these all use the Solaris cyclic subsystem at some level so the resolution is the same. For timers however there's potentially more room for latency as there is additional OS/libc code in the path.
David Holmes

Cisco CUCM session trace log viewer (in real-time monitor) doesn't show all calls

hi all,
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Did you set the service parameter to log calls into CDR?
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/service/8_0_2/car/CAR/caranrpt.html#wp1037699

What are the limitations of using labview 8.5.1 developers suite verses a real-time module in field point applications?

What are the limitations of using labview 8.5.1 developers suite verses a real-time module in field point applications? Can an exe. be loaded onto a field point controller or does the controlling program have to reside on a PC for example?

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Message Edited by StevenA on 07-22-2008 04:14 PM
SteveA
CLD
FPGA/RT/PDA/TP/DSC
Attachments:
fp pallet.PNG ‏6 KB

About using the labview in real time DAQ system

Hi All
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I think you can use buffered signals with some changes on your circuit, with real time can be hard to implement with not supported hardware.
Best regards

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Hi Sihem,
Thank you for contacting National Instruments. Using the LabVIEW Real-Time module, you can do development without actually having a target. While viewing the project explorer window, you can do the following steps:
Right click on the project
Select New >> Targets and Devices
Select the "New Target or Device" radio button
Select the target you would like to develop on.Information about the LabVIEW Real-Time Module can be found here.
Regards,
Kevin H
National Instruments
WSN/Wireless DAQ Product Support Engineer

WVC80N real-time video streaming to TV

I am very happy with WVC80N camera. It is a great product! Just one thing I'm yet to figure out: Is there a way to view the real-time video feed from the camera directly on a TV? Or, through XBOX? (I don't want to hookup the computer to theTV)

Well the scenario that you explained, technically it is possible but it is not tested. Just it requires proper add-ons for the browser used in the T.V. Or in Xbox. It has the ability to view live video on your cell phones.The image isn’t amazing, but you can no doubt see whats going on. It’s all that much better with a bigger screen and makes watching over your home or office super quick and easy.

Infocubes - TRANSACTIONAL - STANDARD - REAL TIME

<h3>Some clarity has to be brought in to these three types of CUBES.
<h5>
I am using SALES ANALYSIS & SALES BUDGET here as an example.
<h1>Assumptions & Scenario:
<h5>1. Sales Budget is prepared once a year, Division / Group / Category / Material wise (may be customerwise, but does not really matter). Once the budget is approved, it more or less remains static, with very little changes. Budgeting is done for Quantity to be sold as well as an approximate unit cost.
<h5>
2. Sales Analysis captures the actual sales in the same order Division / Group / Category / Material wise but now the quantity and the unit price are actual values.
<h5>
3. Assume that the accounting period for this organization is January to December for a calendar year, and the Sales budget is finalized and approved in November for the next Accounting year. Example, sales budget for Jan, 2010 - Dec, 2010 is finalized and approved in November, 2009.
<h5>
4. Review and fine tuning and updates to Sales budget is carried out once in three months for the next quarter. In the case in Mid March, Mid Jun, Mid Sep.
<h1>BI Requirement:
<h5>1. Actual sales figures are always compared with Sales Budget and also compared with Last years Actuals.
<h2>
Solution Scenario - I.
<h5>
Maintain Sales Budget figures in a separate INFOCUBE, FACTS being quantity and value, Dimensions being Division / Group / Category / Material . (since there is very little update to this cube, SHOULD WE CALL IT STANDARD or REALTIME or TRANSACTIONAL)
<h5>
Maintain Actual sales in another INFOCUBE, again FACTS being quantity and value, Dimensions being Division / Group / Category / Material . Because of the Data Volume, we want to update this cube on nightly basis, using DELTA. Should we call this STANDARD or TRANSACTIONAL ?
<h5>
All the reports, queries will JOIN (dont know how) both the cubes and display BUDGET and ACTUALS in adjacent collumns.
<h2>_Solution Scenario -II._
<h5>
Since the BUDGET figures and ACTUAL figures are always viewed together, create a single INFOCUBE for this department.
<h5>
FACTS being BudgetQuantity, BudgetAmount, ActualQuantity and ActualAmount. (include if you want, some computational fields to show Percentage of Variance which can also be done at the query level). DIMENSIONS remain the same as SCENARIO - I.
<h5>
You will note immediately that TWO OF THE FACTS are almost STATIC while two of the FACTS are updated everyday.
<h5>
What would you call this type of CUBE? TRASACTIONAL / STANDARD / REALTIME ?
<h5>
Difference between STANDARD and REALTIME cubes being the way the INDICES are maintained. (Hope my understanding is correct, one designed for better performance for RETRIEVAL and the other for UPDATE).
<h5>
In all the cases (Transactional / Standard / Real time) the data is moved from R/3 to PSA and then to the INFOCUBE. so why use the term REAL TIME. And cubes are always built based on Business Transactions, so why use the term TRANSACTIONAL?
<h5>
The term "Real Time" somehow conveys the idea that the CUBE Gets updated, when a transaction is Committed in R/3 database. The Help document also is Ambiguous. If the data is moved from R/3 to Data Source and then to PSA and finally reaches Infocube, then what is REAL TIME?
<h5>
I think it would benefit everyone in SAP BI domain, if these things are explained in plain english.
<h5>
I apologize for writing such a long QUESTION , but hope it will help many of you,
<h3>
Thanks,
<h5>
Gold
Edited by: HornigoldA on Jan 21, 2010 2:33 PM --- I just edited it to make it more readable with MARKUPS

<h3>Some clarity has to be brought in to these three types of CUBES.
<h5>
I am using SALES ANALYSIS & SALES BUDGET here as an example.
<h1>Assumptions & Scenario:
<h5>1. Sales Budget is prepared once a year, Division / Group / Category / Material wise (may be customerwise, but does not really matter). Once the budget is approved, it more or less remains static, with very little changes. Budgeting is done for Quantity to be sold as well as an approximate unit cost.
<h5>
2. Sales Analysis captures the actual sales in the same order Division / Group / Category / Material wise but now the quantity and the unit price are actual values.
<h5>
3. Assume that the accounting period for this organization is January to December for a calendar year, and the Sales budget is finalized and approved in November for the next Accounting year. Example, sales budget for Jan, 2010 - Dec, 2010 is finalized and approved in November, 2009.
<h5>
4. Review and fine tuning and updates to Sales budget is carried out once in three months for the next quarter. In the case in Mid March, Mid Jun, Mid Sep.
<h1>BI Requirement:
<h5>1. Actual sales figures are always compared with Sales Budget and also compared with Last years Actuals.
<h2>
Solution Scenario - I.
<h5>
Maintain Sales Budget figures in a separate INFOCUBE, FACTS being quantity and value, Dimensions being Division / Group / Category / Material . (since there is very little update to this cube, SHOULD WE CALL IT STANDARD or REALTIME or TRANSACTIONAL)
<h5>
Maintain Actual sales in another INFOCUBE, again FACTS being quantity and value, Dimensions being Division / Group / Category / Material . Because of the Data Volume, we want to update this cube on nightly basis, using DELTA. Should we call this STANDARD or TRANSACTIONAL ?
<h5>
All the reports, queries will JOIN (dont know how) both the cubes and display BUDGET and ACTUALS in adjacent collumns.
<h2>_Solution Scenario -II._
<h5>
Since the BUDGET figures and ACTUAL figures are always viewed together, create a single INFOCUBE for this department.
<h5>
FACTS being BudgetQuantity, BudgetAmount, ActualQuantity and ActualAmount. (include if you want, some computational fields to show Percentage of Variance which can also be done at the query level). DIMENSIONS remain the same as SCENARIO - I.
<h5>
You will note immediately that TWO OF THE FACTS are almost STATIC while two of the FACTS are updated everyday.
<h5>
What would you call this type of CUBE? TRASACTIONAL / STANDARD / REALTIME ?
<h5>
Difference between STANDARD and REALTIME cubes being the way the INDICES are maintained. (Hope my understanding is correct, one designed for better performance for RETRIEVAL and the other for UPDATE).
<h5>
In all the cases (Transactional / Standard / Real time) the data is moved from R/3 to PSA and then to the INFOCUBE. so why use the term REAL TIME. And cubes are always built based on Business Transactions, so why use the term TRANSACTIONAL?
<h5>
The term "Real Time" somehow conveys the idea that the CUBE Gets updated, when a transaction is Committed in R/3 database. The Help document also is Ambiguous. If the data is moved from R/3 to Data Source and then to PSA and finally reaches Infocube, then what is REAL TIME?
<h5>
I think it would benefit everyone in SAP BI domain, if these things are explained in plain english.
<h5>
I apologize for writing such a long QUESTION , but hope it will help many of you,
<h3>
Thanks,
<h5>
Gold
Edited by: HornigoldA on Jan 21, 2010 2:33 PM --- I just edited it to make it more readable with MARKUPS

Hardware recommendation for a real-time camera

Hi All,
We are interested in using some cameras with LabVIEW real-time for some data acquisition. We are monitoring quite a large array of points for on/off signals (so a camera is easier to implement than an array of photodiodes). Our initial spec is a CCD, 640x480 chip and about 15fps. I'm guessing firewire or Gig-E as the interface as I've heard USB is not compatible with real-time.
Our plan is to develop the application to run under LabVIEW real-time on a PXI platform. We also hope to eventually deploy the system so we'd prefer not to use NI Vision (I'm not sure if this is possible or not). Similarly due to cost we'd prefer not to use the Embedded/Compact Vision Systems if we can avoid it.
Can anyone recommend a camera which they have used with LabVIEW real-time? I have no real experience with RT as yet so any advise at all would be a great help.
We are also hoping to deploy the system using a cRIO as the main hardware platform. I've seen real-time cRIOs (http://sine.ni.com/nips/cds/view/p/lang/en/nid/208042) have Gig-E built in. Has anyone used a Gig-E camera directly with one of these controllers?
Thanks for your help,
Dave

Hello DeltaJ,
Can I suggest that you contact the UK branch by calling 01635 523545 and request that you speak to you local Inside Sales Representative. They will be able to speak to you further regarding your full systems specifications and suggest which NI products will be best for you.
With regards,
Message Edited by Philip.k on 03-09-2010 05:27 AM
Philip
Applications Engineer
National Instruments
UK Branch
===If this fixes your problem, mark as solution!===

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