Hi thisis kesava can tellme answer this question

what is psa ? why are you using psa while updating data to the data targets?

Hi Kessava,
Your Q No. 1
<b>PSA is persistant staging area .</b>
PSA
Persistent Staging Area is a transparent database table in which request data is stored in the form of transfer structure.A PSA is created per datasource and source system. It represents an initial store in BW in which the requested data is saved unchanged for source system.PSA
1) Checks whether extraction from source system is complete
2)ensures data quality,supports editing,reconstruction and deletion of data
3)the data from the source system is stored in PSA tables before being updated in the Data Target/Info-object
4)preferred method because of its various advantages like Reconstruction, Data editing, etc..
5)Data sources with the IDOC transfer methode are not supported with ODS object.
6)start routine could be created only for transfer method PSA.
For Q No.2
You can load the data without using the PSA. But most of the people go in for the PSA, as that is the place where you can get the raw data as is from the source. You can use that for reconstruction, or looking at problem records and correcting them(not advisable. better to get the data corrected from the source system and then resent)during data load failures. Can also be used for archiving the data if you need to use it later on.
Using the PSA depends upon the type of processing you are using: Parallel, Sequential (PSA used) or Direct Update (no PSA used). If you use the PSA you have the option of reconstructing the data (if request has to be deleted) or also using error handling when loading the data.
Hope this helps
Cheers
Sunil

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Can anyone answer this question? What is used to format a string so that it falls into a certain Row/Column in excel? see text for indepth question.

I'm attaching a file that may help. Just remember this is my FIRST attempt at using NI/FeildPoint so things that would be obvious to the normal users more than likely would slide right by me. So I'll try and explain what the text contains as to make my problem more clear. I'm using a FP-1000, FP-AI-100, and a FP-TB-10. i'm creating a application where I'm using the 8 channels from the FP-AI-100 to monitor a control system ,that we manufacture. The control system is in an environmental chamber. I use the FP-TB-10 to monitor the temperature while in the chamber. The control system is ran for 4 hours under varing enviromental conditions while I monitor vital system voltages with the FP-AI-100. Now the application that i'm building starts with the obvious FP CREATE.VI and so forth I have no problem communicating with the FP's, but the information that I'm monitioring needs to be placed into a file with Headers describing the information below it. Now I use a "WHILE LOOP.VI" to monitor the FP-AI-100 & FP-TB-10 for the 4 hour period. but before that I create and open a file where I use a "CONCATENATE STRINGS.VI" to enter the headers I need. I do this by CONSTANTS, CONTROLS, TABs, AND CARRIAGE RETURN being entered into the "CONCATENATE STRINGS.VI" in the order I want them to appear. I use ROW 1 to enter (OPERATOR:with a CONSTANT) an a (CONTROL so the operator may enter his name and be recorded into the file) using a TAB to seperate Columns and a CARRIAGE RETURNto drop down to ROW 2 for the next headers. I use header names and TABs to seperate the columns. This part works great. I end up with ROW 1 having the operator information then ROW 2 having the headers for all the channels I'm using to monitor the control system with in their own column. The trouble happens when I write to this file during the "WHILE LOOP". The information recorded for DATE:, TIME:, and Channel 0 of the FP-AI-100 end up right under their corresponding header on ROW 3, but the rest of the data ends up on ROW 4 in column 3 and goes down many rows with some of the data not being stored at all. It varies on how many rows are used starting at ROW 4 but hey always stay in column 3. I use the "FP READ.VI" outputing to a "ARRAY TO SPREADSHEET STRING.VI" outputing to a "CONCATENATE STRINGS.VI" for each channel within the "WHILE LOOP" then into the "WRITE.VI". I use the "CONCATENATE STRINGS.VI" to place my data OR atleast I thought you could do that some how I'm not quit doing something write either there is a sampling/timing issue or writing to file issue where things are being confused in the "WHILE LOOP" if someone know a better route to perform what I'm tring here I would be interested. Its not like I'm not giving it the old colledge try here but without proper training and the vagness of the manuals it's difficult to understand what every connection actually does.I'm tring though for everyone who happens to fill pity for me
Thanks for your help
John Morris
Glendinning Marine Product, Inc.
Attachments:
ALLchannels ‏273 KB

> I appreciate your effort to help me, but there is still a slight cloud
> in front of my eyes here.(I must mention that I'm using Labview 5.1
Oh, to bad. I'm using LV 6,02 and tried to save the application as LV5.1,
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I don't use this Spreadsheet VI, because files coming out there allways
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I didn't find the vi you metione above, but there is another good one:
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That should do.
>
> #2--If using just one Create Tag.vi and one Read.vi and I have the
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Yes, just as explained above. If you put a indicator at the output to
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> #3--Now I use the following to "Format String" in the Array to
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Explained above.
> #4 you stated text strings need a "as prefix and sufix" and each
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The example I mentioned above help here to.
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I wish you a nice weekend,
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ryan678 wrote:
okay so i have a mid 2012 macbook pro and being a student myself i travel 4 days a week to and from college with my mac anyway while i was in class the other day i placed my laptop onto the desk and i must have put my mac onto my grit and i have slight airline scratch on the bottom caseing i called my apple store and i asked if the case can be replaced the guy said yes it can be but i will need to book an appoment with a genius but as you know apple apple macs laptops have the designed by apple in california and serial number etc on them if i was to buy a new case for it from apple would it contain these any ideas and help is allways welcome. thanks Ryan
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+Re: can someone awnser this question pleased
deebs986 wrote:
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suryakiran_s wrote:
can anyone answer my question? What happens exactly during compile time when the program is compiled in java ? My answer is for this question is the compiler places all the references to the variables we used in a stack and also places the references to the objects used in the program in a stack. Is my answer correct and complete ? Does the compiler do anything more ?That's not correct.
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