Where is the data coming from in query

Hi,
When we run a query are we getting the data from source system?
Or the cube in Bw?
CAn somebody clarify this for me?
And if i have a query which invloves A hierarchy,is the query execution time going to be more?
Or because the hierarchy is master data it does not effect the query execution time?
Thanks.
Haarika.

The OLAP cache is a performance aid. A query will look in the OLAP cache to see if the data has already been retrieved from the database already, and if it has been, and all other criteria for using the cache are met, the query will get the data from the cache rather than having to read the database. Deleting the data in the cube will invalidate the cache for that query, meaning the query must go to the cube, and surprise, surprise, find no data. Any time the cube gets changed, the cache will be invalidated.

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Agilent 87XX Series Exceed Max Meas.vi ‏43 KB

First let me say that your code really looks pretty good. The data handling could be made more efficient by calculating the number of datapoints that are going to be in the completed dataset and preallocating the entire array -- but depending upon your answer to my questions, the logic in the lower shift register may be going away - so we won't worry about that right now.
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I am trying to perform AO (pci 6723) and to trigger my AO card (pci
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Where does the data come from which powers the ship date and delivery date

Hi All,
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Adi.

Hi,
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If you want the delivery date other thann the CURRENT date then you have to maintain the LEAD TIME in days in the same tab.
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A week after my first call to AppleCare, I called again for help. This time the Tech was very helpful and she did not ask for additional $$.
My computer does not have an Airport card in it. To get my new Extreme-n to recognize my Express so that I can send iTunes wirelessly to my stereo, we spent an hour on the phone working through a manual setup. It included an initial hard-wired Ethernet connection to both Airports. It included manually copying the AirportID number from one device to the other, and then the reverse. It also took three different “hard-resets” of my Express. My “simple” Extreme-n to Express wireless connection is now working properly.
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Where is source data coming from?

Hi,
I've cobbled togeher a working app (based on some examples found on the net). The application works well, but I have one specific question as to why it works!
The application takes data from the mic on my pc and saves it to a file. I can play back this file through standard media player and it obviously has worked as I can hear the recording again.
I'm using a TargetDataLine to record the audio to a file. I get this from an appripriate mixer. To do this, I have the following method to provide me with an appropriate mixer:
<pre>
private Mixer getMixerSupportingDataLine(DataLine.Info dataLineInfo) {
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               Mixer.Info mixerInfo = (Mixer.Info)mixerInfoArray;
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               if (mixer.isLineSupported(dataLineInfo)) {
                    System.out.println("mixer info="+mixerInfo.getName());
                    return mixer;
          return null;
</pre>
Now the parameter I pass into this method comes form the following code:
<pre>
audioFormat = getAudioFormat();
DataLine.Info dataLineInfo =
new DataLine.Info(
TargetDataLine.class,
audioFormat);
private AudioFormat getAudioFormat(){
     float sampleRate = 8000.0F;
     int sampleSizeInBits = 16;
     int channels = 1;
     boolean signed = true;
     boolean bigEndian = false;
     return new AudioFormat(sampleRate,
     sampleSizeInBits,
     channels,
     signed,
     bigEndian);
</pre>
So I have a mixer that I know supports the kind of TargetDataLine that I want. So I get a targetDataLine from the mixer:
<pre>
targetDataLine = (TargetDataLine)mixer.getLine(dataLineInfo);
</pre>
I can then open the line and read data from it, save it to a file, and all is fine.
So my question is this:
Nowhere in my code do I specify where the data (that ends up in my TargetDataLine) is coming from. I've not specified that it should come from a mic, or line-in, or any other physical device. It just magically reads data from my mic.
When I query my mixer to see its sources:
<pre>
System.out.println(" capturing and mixer has this many source lines:"+mixer.getSourceLineInfo().length);
System.out.println(" mixer info"+mixer.getMixerInfo());
System.out.println(" source lines open"+mixer.getSourceLines().length);
System.out.println(" mixer open:"+mixer.isOpen());
System.out.println(" mixer controls:"+mixer.getControls().length);
</pre>
I see that there are no sources!
<pre>
mixer info=Microsoft Sound Mapper
capturing and mixer has this many source lines:0
mixer infoMicrosoft Sound Mapper, version Unknown Version
source lines open0
mixer open:true
mixer controls:0
</pre>
I really want to understand this, as it seems fundamental. If the mixer has no source lines, how is it getting data from the mic?! Surely there must be a way to query the mixer to find the data source.
Can anyone help me understand this fundamental point?
Many thanks,
Martin
Edited by: user4621888 on 12-Feb-2011 08:57
Edited by: user4621888 on 12-Feb-2011 09:10

user4621888 wrote:
So my question is this:
Nowhere in my code do I specify where the data (that ends up in my TargetDataLine) is coming from. I've not specified that it should come from a mic, or line-in, or any other physical device. It just magically reads data from my mic.Ok.
I see that there are no sources! Source and Target lines are what the user uses to write and read data from the line (respectively)... For example, the port that's actually associated with the microphone will have zero source lines, because you're not allowed to write to the microphone...but it gets data from the microphone, behind the scenes.
So, fundamentally, just remember that just because you can't write to it doesn't mean it doesn't take in data. It often times means it's hard coded to read a specific stream of data.
In this case, the stream of data is probably the default recording device specified in Windows...

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Thanks in advance.

CSFGF wrote:
Hi ,
I want to store the data into text file,which is coming from visa-read.
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Message was edited by: Thomas Jung

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