Best practices monolithic or pseudo-time clock

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• What are the best practices for creating only time data types, and not the Date

  Hi gurus,

  We use 12 c DB and we have a requirement to create the column with datatype of time only, if someone please describe what are the best practices for the creation of this.

  I would strongly appreciate ideas and suggestions.

  Kind regards
  Ranjan

  Hello

  How do you intend to use the time?

  If you are going to combine with DATEs or timestamps from a other source, then an INTERVAL DAY TO SECOND or NUMBER may be better.

  Will you need to perform arithmetic operations on time, for example, increase the time to 20%, or take an average?   If so, the NUMBER would be preferable.

  You are just going to display it?  In this case, DAY INTERVAL in SECONDS, DATE or VARCHAR2 would work.

  As Blushadow said, it depends.

• Material LV real-time Ethernet com best practices

  Hello

  I just started to learn the LV in real-time, and until I get a new cRIO I just played with a former PSC-2220.

  Everything works, I am reading the tutorals nice about RT and deployment/running example to this target applications.

  However, I don't know what is the best practice, the IP address of this device handling. For easy installation, after a device reset (and install the new RT runtimes, etc) I put just the HW to obtain the dynamic IP address of my router (DHCP). My laptop connects to the same router via wifi.

  However, since after a few resets the target Gets a new IP (192.168.0.102, previous IP was... (104), I have to manually change the IP address in my project. Is it possible that the LV auto detects the target in my project? In addition, it seems that MAX retains the old information and creates a new line for the same target... so I guess that if the problem persists, MAX is going to fill? See screenshots below.

  As a solution, I'll try to use static IP for the target, so it must always use the same IP address.

  What is the common procedure to avoid this kind of problems? Just using static IP? Or miss me him too something else here?

  Thank you!

  

  I just always use static IP addresses.  It avoids just all kinds of questions, especially if you have several systems on the same network.

• Measurement on the side time server? Best practices for the turn-based game

  Hello

  What would be the best practice for measuring time in a turn based game?

  I was looking at the timeout of the room, but to use that it would mean that, for each round, I put users in a new room?

  Is there a way where I can measure time serverside and keep users in the same room?

  If so, I could use php, otherwise, we would need java that allows to measure a time race.

  See you soon,.

  G

  Hello

  You can definitely use PHP or Java - we provide integration of server

  libraries for either. I don't know exactly what is the use case, so I can't

  comment on what makes the most sense, but if it is not information which must be

  totally secure, grading on the client can be a viable approach also.

  Nigel

• Code/sequence TestStand sharing best practices?

  I am the architect for a project that uses TestStand, Switch Executive and LabVIEW code modules to control automated on a certain number of USE that we do.

  It's my first time using TestStand and I want to adopt the best practices of software allowing sharing between my other software engineers who each will be responsible to create scripts of TestStand for one of the DUT single a lot of code.  I've identified some 'functions' which will be common across all UUT like connecting two points on our switching matrix and then take a measure of tension with our EMS to check if it meets the limits.

  The gist of my question is which is the version of TestStand to a LabVIEW library for sequence calls?

  Right now what I did is to create these sequences Commons/generic settings and placed in their own sequence called "Functions.seq" common file as a pseduo library.   This "Common Functions.seq" file is never intended to be run as a script itself, rather the sequences inside are put in by another top-level sequence that is unique to one of our DUT.

  Is this a good practice or is there a better way to compartmentalize the calls of common sequence?

  It seems that you are doing it correctly.  I always remove MainSequence out there too, it will trigger an error if they try to run it with a model.  You can also access the properties of file sequence and disassociate from any model.

  I always equate a sequence on a vi and a sequence for a lvlib file.  In this case, a step is a node in the diagram and local variables are son.

  They just need to include this library of sequence files in their construction (and all of its dependencies).

  Hope this helps,

• TDMS & Diadem best practices: what happens if my mark has breaks/cuts?

  I created a LV2011 datalogging application that stores a lot of data to TDMS files.  The basic architecture is like this:

  Each channel has these properties:

  To = start time

  DT = sampling interval

  Channel values:

  Table 1 d of the DBL values

  After the start of datalogging, I still just by adding the string values.  And if the size of the file the PDM goes beyond 1 GB, I create a new file and try again.  The application runs continuously for days/weeks, so I get a lot of TDMS files.

  It works very well.  But now I need to change my system to allow the acquisition of data for pause/resume.  In other words, there will be breaks in the signal (probably from 30 seconds to 10 minutes).  I had originally considered two values for each point of registration as a XY Chart (value & timestamp) data.  But I am opposed to this principal in because according to me, it fills your hard drive unnecessarily (twice us much disk footprint for the same data?).

  Also, I've never used a tiara, but I want to ensure that my data can be easily opened and analyzed using DIAdem.

  My question: are there some best practices for the storage of signals that break/break like that?  I would just start a new record with a new time of departure (To) and tiara somehow "bind" these signals... for example, I know that it is a continuation of the same signal.

  Of course, I should install Diadem and play with him.  But I thought I would ask the experts on best practices, first of all, as I have no knowledge of DIAdem.

  Hi josborne;

  Do you plan to create a new PDM file whenever the acquisition stops and starts, or you were missing fewer sections store multiple power the same TDMS file?  The best way to manage the shift of date / time is to store a waveform per channel per section of power and use the channel property who hails from waveform TDMS data - if you are wiring table of orange floating point or a waveform Brown to the TDMS Write.vi "wf_start_time".  Tiara 2011 has the ability to easily access the time offset when it is stored in this property of channel (assuming that it is stored as a date/time and not as a DBL or a string).  If you have only one section of power by PDM file, I would certainly also add a 'DateTime' property at the file level.  If you want to store several sections of power in a single file, PDM, I would recommend using a separate group for each section of power.  Make sure that you store the following properties of the string in the TDMS file if you want information to flow naturally to DIAdem:

  'wf_xname '.
  
  'wf_xunit_string '.
  
  'wf_start_time '.
  
  'wf_start_offset '.
  
  'wf_increment '.

  Brad Turpin

  Tiara Product Support Engineer

  National Instruments

• best practices to increase the speed of image processing

  Are there best practices for effective image processing so that will improve the overall speed of the performance? I have a need to do near real-time image processing real (threshold, filtering, analysis of the particle/cleaning and measures) at 10 frames per second. So far I am not satisfied with the length of my cycle so I wonder if he has documented ways to speed up performance.

  Hello

  IMAQdx is only the pilot, it is not directly related to the image processing IMAQ is the library of the vision. This function allows you to use multi-hearts on IMAQ function, to decrease the time of treatment, Arce image processing is the longest task for your computer.

  Concerning

• Best practices on how to code to the document?

  Hello

  I tried to search the web tutorials or examples, but could not get to anything. Can anyone summarize some of their best practices in order to document the LabVIEW code? I want to talk about a quite elaborate program, built with a state machine approach. It has many of the Subvi. Because it is important, that other people can understand my code, I guess that the documentation is quite large, but NEITHER has yet a tutorial for it. Maybe a suggestion ?

  Thank you for your time! This forum has been a valuable Companion already!

  Giovanni

  PS: I'm using LabVIEW 8.5 btw

  Giovanni,

  Always:

  Fill in the "Documentation" in the properties of 'VI '.

  Add description to the controls of its properties

  Long lines label

  Label algorithm, giving descriptions

  Any code that can cause later confusion of the label.

  Use the name bundle when clusters

  Add a description tag in loops and cases. Describing the intention of the loop/case

  Follow the good style guide as will make reading easy and intuitive vi.

  I'm sure there are many others I can't think...

  I suggest you to buy "LabVIEW style book", if you follow what this book teaches you will produce good code that is easy to maintain.

  Kind regards

  Lucither

• Best practices - dynamic distribution of VI with LV2011

  I'm the code distribution which consists of a main program that calls existing (and future) vi dynamically, but one at a time. Dynamics called vi have no input or output terminals. They run one at a time, in a subgroup of experts in the main program. The main program must maintain a reference to the vi loaded dynamically, so it can be sure that the dyn. responsible VI has stopped completely before unloading the call a replacement vi. These vi do not use shared or global variables, but may have a few vi together with the main program (it would be OK to duplicate these in the version of vi).

  In this context, what are best practices these days to release dynamically load of vi (and their dependants)?

  If I use a library of project (.lvlib), it seems that I have to first build an .exe that contains the top-level VI (that dynamically load), so that a separate .lvlib can be generated which includes their dependencies. The content of this .lvlib and a .lvlib containing the top-level VI can be merged to create a single .lvlib, and then a packed library can be generated for distribution with the main .exe.

  This seems much too involved (but necessary)?

  My goal is to have a .exe for the main program and another structure containing the VI called dynamically and their dependents. It seemed so straighforward when an .exe was really a .llb a few years ago

  Thanks in advance for your comments.

  Continue the conversation with me here is the solution:

  

  Runs like a champ. All dependencies are contained in the packed library and the dynamic call works fine.

• Best practices of a partition of HDD on Windowes Server2008 and Windowes 2012

  What is the best practice for partition of HDD on Windowes Server 2008 and 2012 Windowes

  Could be interesting to ask more http://social.technet.microsoft.com/Forums/en-US/winservergen/threads that you can get more answers.

  That said I would say that very much depends on what you intend to do with the server, and of course how much space you have available.

  For a general server I would probably go with two volumes, the C:\ drive for the file system and a second volume for your data, for example E:\. I recommend at LEAST 30 GB for the C:\, 40-50 GB preference, since updates, patches, etc will burn way over time and it's much easier to start big than to try to develop later.

  If you are running the Terminal Services, then you will probably need a larger C:\ amount as a large part of the user profile data is stored there in order to run lack of space fairly easily.

  As I said, it depends on what you do, how much space and disks you have available etc, it isn't really a one-size-fits-all answers.

• encoding issue "best practices."

  I'm about to add several command objects to my plan, and the source code will increase accordingly. I would be interested in advice on good ways to break the code into multiple files.

  I thought I had a source file (and a header file) for each command object. Does this cause problems when editing and saving the file .uir? When I run the Code-> target... file command, it seems that it changes the file target for all objects, not only that I am currently working on.

  At least, I would like to have all my routines of recall in one file other than the file that contains the main(). Is it a good/bad idea / is not serious? Is there something special I need to know this?

  I guess what I'm asking, what, how much freedom should I when it comes to code in locations other than what the editor of .uir seems to impose? Before I go down, I want to assure you that I'm not going to open a can of worms here.

  Thank you.

  I'm not so comfortable coming to "best practices", maybe because I am partially a self-taught programmer.

  Nevertheless, some concepts are clear to me: you are not limited in any way in how divide you your code in separate files. Personally, I have the habit of grouping panels that are used for a consistent set of functions (e.g. all the panels for layout tests, all the panels for execution of / follow-up... testing) in a single file UIR and related reminders in a single source file, but is not a rigid rule.

  I have a few common callback functions that are in a separate source file, some of them very commonly used in all of my programs are included in my own instrument driver and installed controls in code or in the editor of the IUR.

  When you use the IUR Editor, you can use the Code > target file Set... feature in menu to set the source file where generated code will go. This option can be changed at any time while developing, so ideally, you could place a button on a Panel, set a routine reminder for him, set the target file and then generate the code for this control only (Ctrl + G or Code > Generate > menu control reminders function). Until you change the target file, all code generated will go to the original target file, but you can move it to another source after that time.

• I would like to know the "best practices" for unplugging my computer permanently to the internet and other updates.

  Thank you for taking the time to read this. I would like to know the "best practices" for unplugging my computer permanently to the internet and other updates. I thought I would do a clean install of Windows XP, install my Microsoft Works again and nothing else. I would like to effectively transforming my computer into a word processor. He continues more and more slow. I get blue screen errors, once again. I received excellent Microsoft Support when it happened before, but since my computer is around 13 years, I think it is not worth the headache to try to remedy. I ran the Windows 7 Upgrade Advisor, and my computer would not be able to upgrade. Please, can someone tell me how to make it only a word processor without updates or internet connection? (I already have a new computer with Microsoft Windows 7 Home Premium, it's the computer that I use. The old computer is just sitting there and once a week or so I updates.) I appreciate your time, thank you!

  original title: old computer unstable

  http://Windows.Microsoft.com/en-us/Windows-XP/help/Setup/install-Windows-XP

  http://www.WindowsXPHome.WindowsReinstall.com/sp2installxpcdoldhdd/indexfullpage.htm

  http://aumha.NET/viewtopic.php?f=62&t=44636

  Clean install XP sites
  You can choose which site to reinstall XP.

  Once it is installed, then you do not have to connect what anyone, however, some updates may be required to perform the work, test this by installing work and see if you get an error msg. Except that you should be fine.

• Best practices for the design of a printing environment?

  Greetings,

  If there is a better place for this, please let me know.

  Objective:

  Redesign and redeploy my printing environment with best practices in mind.

  
  

  Overview: VMWare environment running 2008 R2, with about 200 printers. I have a majority of printers HP ranging from 10 years old again. LaserJet MFP, OfficeJets, etc... etc... In addition to the copiers Konica, Xerox and Savin. Many of our models of printer are not taken in charge in 2008, and still less x 64.

  Our future goals include services eprint, as well as the desire to manage the print quality, and levels of consumition by something like Web Jetadmin.

  Currently we have a 2003 Server x 86 server running our printers very old and 6 months ago the rest on a single x 64 server 2008r2. We ended up not giving it the attention to detail, it is necessary and pilots have become very congested, this led to a PCL6 only, UPD update that ended up corrupting several drivers through the UPD PCL 5 and 6 of the spectrum. At this time, we brought a second server 2008r2 and began to emigrate to those affected. In some cases, we were forced to remove manually the drivers off the customer system32-> coil-> driver and reinstall.

  I've not had much luck finding good best practice information and thought I'd ask. Some documents I came across suggested that I should isolate a universal driver to a single server, such as 3 servers for PCL5, PCL6, and Psalm then, there is the need to deal with my various copiers.

  I appreciate your advice, thank you!

  This forum focuses on the level of consumer products.  For your question you can have the best results in the forum HP Enterprise here.

• Best practices for the application of page multi Landscape/Portrait

  Hello
  I am looking for information on track to develop auto guide demand in pure actionscript with new components of qnx.fuse, but there is not a good example in real code. Every time I tried to make it resizable layout to get deformated fluid only components in portrait or landscape mode.

  I have a simple application with the point main and 3 displays:

  public class Main extends NavigatorSprite
  {
      public function Main()
      {
          addEventListener(Event.ADDED_TO_STAGE, init); 
  
          stage.nativeWindow.visible = true;
          stage.scaleMode = StageScaleMode.NO_SCALE;
          stage.align = StageAlign.TOP_LEFT;
          stage.nativeWindow.activate();
      }
      private function init(e:Event):void
      {
          removeEventListener(Event.ADDED_TO_STAGE, init);
          navigator.pushView(View1);
      }
  }
  
  public class View1 extends ViewSprite
  {
  
      private var container:Container;
      private var button_two:LabelButton;
      private var button_three:LabelButton;
  
      public function View1
      {
          addEventListener(Event.ADDED_TO_STAGE, init);
      }
  
      private function init(e:Event):void
      {
          removeEventListener(Event.ADDED_TO_STAGE, init);
  
          container = new Container();
          var layout:RowLayout = new RowLayout();
          container.layout = layout;
  
          button_two = new LabelButton();
          button_two.label = "to page 2";
          button_two.width = 150;
          button_two.height = 45;
          button_two.addEventListener(MouseEvent.CLICK, handleTwoClicked);
          container.addChild(button_two);
  
          button_three = new LabelButton();
          button_three.label = "to page 3";
          button_three.width = 150;
          button_three.height = 45;
          button_three.addEventListener(MouseEvent.CLICK, handleThreeClicked);
          container.addChild(button_three);
  
          addChild(container);
      } 
  
      private function handleTwoClicked(e:Event):void
      {
          navigator.pushView(View2);
      }
  
      private function handleThreeClicked(e:Event):void
      {
          navigator.pushView(View3);
      }
  }
  
  public class View2 extends ViewSprite
  {
  
      private var container:Container;
      private var back:BackButton;
  
      public function View2
      {
          addEventListener(Event.ADDED_TO_STAGE, init);
      }
  
      private function init(e:Event):void
      {
          removeEventListener(Event.ADDED_TO_STAGE, init);
  
          container = new Container();
          var layout:RowLayout = new RowLayout();
          container.layout = layout;
  
          back = new BackButton();
          back.label = "Back";
          back.width = 100;
          back.height = 45;
          back.addEventListener(MouseEvent.CLICK, goBack);
          container.addChild(back);
  
          addChild(container);
      } 
  
      private function goBack(e:Event):void
      {
          navigator.popView();
      }
  }
  
  public class View3 extends ViewSprite
  {
  
      private var container:Container;
      private var back:BackButton;
  
      public function View3
      {
          addEventListener(Event.ADDED_TO_STAGE, init);
      }
  
      private function init(e:Event):void
      {
          removeEventListener(Event.ADDED_TO_STAGE, init);
  
          container = new Container();
          var layout:RowLayout = new RowLayout();
          container.layout = layout;
  
          back = new BackButton();
          back.label = "Back";
          back.width = 100;
          back.height = 45;
          back.addEventListener(MouseEvent.CLICK, goBack);
          container.addChild(back);
  
          addChild(container);
      } 
  
      private function goBack(e:Event):void
      {
          navigator.popView();
      }
  }
  

  Is there for example some best practices how to modify this code to have pages and components with the same sizes in portrait and landscape? On presentation buttons size always 150 width and height 45 and wil containers have stageWidth and stageHeight.

  Thank you if someone could help with this problem

  Hello

  Try listening to a shift in focus screen with this code:

  stage.addEventListener(Event.RESIZE, onResizeHandler, false, 0, true);
  

  You can only change the width/height of your components to the event based on the width/height of the floor.

  I will guard against specifying specific sizes, if you want your code to work on devices BB10. I recommend using %'s.

  Kind regards

  Dustin

• Best practice? Storage of large data sets.

  I'm programming a Client to access the customer address information. The data are delivered on a MSSQL Server by a Web service.

  What is the best practice to link these data namely ListFields? String tables? Or an XML file with is analyzed?

  Any ideas?

  Thank you, hhessel

  These debates come from time to time. The big question is how normally geet she on the phone after

  someone asks why BB does not support databases. It is there no magic here - it depends on what you do with

  the data. Regarding the General considerations, see j2me on sun.com or jvm issues more generally. We are all

  should get a reference of material BB too LOL...

  If you really have a lot of data, there are libraries of zip and I often use my own patterns of "compression".

  I personally go with simple types in the store persistent and built my own b-tree indexing system

  which is also j2se virtue persistable and even testable. For strings, we'll store me repeated prefixes

  that only once even though I finally gave up their storage as only Aspire. So if I have hundreds of channels that start "http://www.pinkcat-REC".

  I don't store this time. Before you think of overload by chaining these, who gets picked up

  the indexes that you use to find the channel anyway (so of course you have to time to concatenate pieces)

  back together, but the index needs particular airspace is low).