functional overall memory variable allocation

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  installedapp872 = StrSub (Apps, Start, stop-stop)

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  Try R.clicking my computer, properties, advanced, performance, swap file,.

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• When memory is allocated to a variable in the language PLSQL and where in the PGA?

  Hi all

  When and where the memory is allocated to a variable?

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  The initial value of a PL/SQL variable is NULL if you do not provide one when it is declared.

  http://docs.Oracle.com/CD/E11882_01/AppDev.112/e25519/fundamentals.htm#LNPLS195

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• 2 parallel while loops with functional overall to share data

  Hello

  I'm having a problem with the sharing of functional with globals data between two parallel while loops:

  1. One of the loop (bottom) generates a random number periodically and write the total functional sample.
  2. Another loop (above) has a structure of event and when it expires, he would read the functional global and intrigue, a chart data point.

  The problem is sometimes the functional overall seems to be 'locked' and the output becomes zero constant. It also seems that whenever I first open the VI, it works fine. But for the second time running, he begins to have the problem.

  

  You must initialize your VI stop FGV FRONT of your lower loop begins.  Even if you use a global variable that is functional, you have a race condition.  FGV is read in the lower loop until it had a chance to be initialized with a value of false in the upper loop.  Functional global variables do not forget their data between executions of the VI.  So it is always set on stop the last time that you ran the VI.  This works your VI the first time it's because VI does not have in memory, so when it loads, it loads with the default value False in the shift register.

• Function of memory in the loop control and Simulation - problem of the ODE Solver

  Hello

  I'm correctly using the control loop & simulation to simulate the behavior of what is essentially a shock absorber-spring-mass system. In the process of change in time (dt) is used to integrate an arbitrary value. I use a rack depending on memory to store the time, to calculate the change of time (dt).

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  I did a lot of research of error using the probe, but I'm sure that there is a problem with the ODE Solver and memory function. See the image below, showing basic how is calculated the change in time.

  I'm pretty new to LabVIEW, so if there is something else I missed I would be happy to hear it.

  PS! I set the tolerance minimum step of size/relative and absolute for the Adams-Moulton to simulate the behavior of the system properly.

  Problem solved!

  It turns out that the ODE Solver has struggled because of two "table 2D find" used functions. This was created for the interpolation/extrapolation, which caused a problem constantly and the ODE Solver could not resolve correctly, so the functions of memory doesn't work does not correctly or the other.

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• APEX 4.2 translate data 'function and Global Variable declaration '.

  Hello everyone,
  
  I use APEX 4.2.1.00.08 and I wonder if there is a way to translate "Function and Global Variable declaration" textarea. Any other script text box is available for translation, but not this one.
  I know what the code is loaded on the header, but may contain important alert messages of global functions.
  
  Thanks in advance.

  Hi Grandmaster,

  "Function and global variables declaration" contains the JavaScript code, that is why it is not wise to include in the standard translation process.

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  -----------
  Member of the APEX development team
  My Blog: http://www.inside-oracle-apex.com
  APEX Plug-Ins: http://apex.oracle.com/plugins
  Twitter: http://www.twitter.com/patrickwolf

• Store the result of a function in a variable

  Hello
  I have an interface where I do some transformations (get Oracle COST of the corresponding values of PeopleSoft). For research, I have a PL/SQL function in place. This function takes the values of the columns in my input in the runtime source data store. I want to store the result of the function in a variable, use the variable instead of calling the function again later. Any help is appreciated.

  Hello

  I had the problem...

  Gotta 'keep' the same order value to execute the PL/SQL only once...

  In this case, a first suggestion is:

  (1) create an interface to load a temporary table (yellow interface). The target table will be the PK and a field with the PL/SQL returned returns. The source will have the same tables as the real interface.
  Remember, IKM, to set the create table and options to truncate to 'yes '.

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  (3) just to map the column transformed (from the temporary table) for columns 4 targets...

  This help you?

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• function with a variable number of cubic curves

  Hello

  I have a set of data : a set representing the independent variable and a set representing the dependent variable. I need to find the minimum number of cubic curves (find their coefficients) that reduce the average quadratic error less than a given tolerance. If the tolerance is higher than 17 particular segments, so I need to raise an error.

  You have an idea what function blocks, I need to?

  I could use general polynomial Fit VI with order 3 and its default method to check the residue. If the residue is greater than the given tolerance, so I could try to use two cubic curves and test them on different starting and ending points until the residue is less than the given tolerance. If tolerance is not guaranteed, I add another curve and I test again the Assembly as shown above. By iteration until the residue is less than the given tolerance, or until I would need to add 18th cubic curve.

  If there was something ready, I would be grateful.

  Thank you.

  Fabiobonelli wrote:

  Please, you can test your VI adding another point to four present?

  X =-6453

  Y =-266

  Check the residue.

  Thank you.

  Did you even read my response? You have a serious air conditioning problem because the data is on a narrow Beach far from zero. By example-6500 ^ 3 is smaller that - 2E11, i.e. a value that many (many!) is orders of magnitude different from that of the constant term (1). The linear algebra problem that results is very ill, conditioned and just blindly Ford over the accelerator pedal are bad advice here.

  This isn't a problem with the implementation of LabVIEW, but a fundamental vice that you encouter also (or worse) If you would do your own math. No way around it. (See also)

  My recommendation is to delete the X offset and add it later again. Now things work correctly. (Note that a second order polynomial fitting still works without twist it).

  Try the and see for yourself.

• Can I use data value references with a functional overall?

  Can I use data value references with a functional global?  I am trying, but it causes problems:  I run the attached VI with "new DVR" selected.  Then I run it again with "return array" and I get the error 1556: "The reference is invalid. This error might occur because the reference has been deleted."  It seems to have forgotten the DVR, but I thought it should be stored in the shift register.
  
  Another odd thing:  In my VI, if I try to connect the wire shown in "something strange", then the type changes (from U16 array to DBL), i.e. it doesn't recognize the type referenced by the DVR.
  
  I want to pass a very large 4-dimensional array between parallel loops with a functional global.  To avoid memory problems, I want to use a DVR and in-place element structures.  If that's not allowed in Labview, I will try passing it through a user event or notifier.  Any problems with those alternatives?
  
  Thanks.
  

  I received a response from an engineer applications OR on this subject, and it seems that it is perhaps a problem with Labview.  They are working on it, so I'll go ahead and close this discussion.

  Thanks for the help,

  Allan

• functional overall mishap/quirk

  While mangling one overall functional implementation, I updated by mistake the playback indicator inside the while loop in the case of reading. I quickly discovered that when any write operation, the indicator has been always reset to a default value. The default value is traceable to an earlier deformation and the value is understandable. What I don't understand is why the indicator inside the loop to reset?

  See the super-simple vi attached. This seems counterintuitive, and I'm not missing something basic here.

  Thank you!

  Hi David,

  you have at least a little creative see attachment.

  When you want to write only one of the entries of the FGV, you will need to provide more OpModes (read/write)! Enter your OpModes as 'Bob writing' and "Write Mary", where it is only wire one of the entrances to the shift register.

• help with functional overall

  Small is my first experementing with globals time functional

  After being recommended to read this thread http://forums.ni.com/ni/board/message?board.id=170&message.id=240328&query.id=5387854#M240328

  I decided to start with just a functional global

  (I like that term better as a FG should be just that, a global variable and not perform actions beyond holding data)

  What I have is written 'VI - A' to the 'VI - B' read the FG and FG

  The problem I have is:

  I can open the FG - VI in 'VI - A' it and see updated.

  If I open the FG - VI in 'VI - B' FG - VI is running, but the controls and indicators are still in their default state and not updated by VI - A

  I checked and checked and checked to ensure there has only a single instance of the FG - VI on my machine.

  I even went as far as dragging the FG - VI directly from the diagram of blocks 'VI - A' to 'VI' pattern-block - B

  
  

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