Suspension and dequeuer AQ

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• Enqueue and dequeue

  Hi all

  I have jusr found an interesting question, which confused me too much. Hope you can help me. Look at the picture (Panel and block diagram). When I press the button loop dequeue, the number will change to 50. When I press STOP loop enqueue, then press the dequeue one, the number will never change at 50. I really don't understand. In addition, on the basis of the second sequence of operation, what can I do to jump the dequeue loop and change the number?

  your queue and dequeue loop run at rates almost the same (which are crazy because you don't have any waiting loop enqueue.)

  So when you tap hold stop button loop it dequeues an element and stops and you go to another sequence and get value = 50. (Note that you always queue data)

  When you press stop loop enqueue, dequeue funtion had already removed data from the queue and waiting for other data. Because the time-out dequeue is - 1 he'll wait forever and the loop will not stop and you would get any value out of the loop.

  To work around the problem, you can give some timeout to dequeue function. (just a workaround, may not be a good technique)

  Now made explanation what actually you trying to do with this?

• suspension and resumption of a proc to the tool DEVELOPER oracle PL/SQL, PL/SQL

  I need to test a PL/SQL on how it reacts to an exception. I need to PAUSE, do something outside of the proc and then resume the proc. Is there a command PROMPT in PL/SQL where he would wait for user input? Can I use DBMS_OUTPUT. GET_LINE to do this? Where is raed GET_LINE entry of?

  user4900730 wrote:
  The INSERT will wait forever?

  Yes - the lock has been created by the 1st session needs to be released. This is done by a commit or rollback - or something like kill this session which will result in an automatic cancellation.

  Remember that it is an application problem. Oracle must simply ensure that the primary key is not violated. It is the application that has decided the how/what/where/when to insert the data.

  The only time where Oracle will intervene in this regard is when it detects a deadlock. It is an infinite hung - so Oracle will select one of the sessions involved in the deadlock and kill him. This lead to a cancellation of this session and will allow the other session attached to continue.

  This error is stored in the instance's alert log file and a trace file is created - and also marked as an application problem which must be solved at the level of the application.

  If yes then I never need to test the duplicates on the VALIDATION. If the waiting is over and oracle allows session B to continue beyond the insert (with the record inserted in homogeneous image read B) so if one commits before B Gets the commit B can get a PK violations on validating DUP?

  No, a process can continue pass a lock. She can try the lock with "+ no waiting +"-in which case when he fails to lock, it will not be queued for the lock, but rather throw an exception.

  You must decide at the application level, how you're going to deal with this. You wait for access to the line of change/insert? You use without waiting? This framework is an architecture decision. Client-server standard with a dedicated dynamic customer, you can expect. With a Webmail client-server having a customer without a State, you cannot afford to wait.

  It is much simpler than in other Oracle databases. Readers do not block writers. Writers do not block readers. Writers can only block other Scriptures when pretending to write the same data (rows). Thus, you should only have to worry about writing the data of same (and no lock escalation, or readers, writers, etc. of blocking as is the case in other RDBMS products).

  Is there any place in the oracle documentation that deals with this.

  [Concepts of Oracle® database | http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/consist.htm#i13945] has a section on to data concurrency and consistency.

• How to connect an lvdt and cell to usb 6008

  Please help me iam do not know how to choose a daq card. looking for a lost lt but iam.

  I want to measure the force and displacement at the same time a bench test of suspension and I wanted to use or usb6008 because of my budget for the project.

  can I use this daq card to measure these parameters?

  answer please... Thanks in advance.

  Hi Sylvia,.

  To be able to determine or not with a box NI USB-6008 would be appropriate for your application, it would be useful to get a little more information on measures you can take. If possible you would be able to provide the range of voltage, you intend to measure with your instruments and sampling rate, you need?

  I also noticed in the subject line you use an LVDT, will you also production for this tension with the 6008 or this will be done separately?

  To give you some setting in context, the NI USB-6008 case does not really simultaneous readings at every moment, but will be replacing rapdily between channels, to give effectively simultaneous samples. As this unit has a sampling rate of 10 kech. / s, and you use 2 channels, the sampling rate effective for each entry would be 5 kech. / s.

• details on the test of suspension of vehicle (car) with labview real-time

  Hello friends,

  I'm doing phd in the suspension system active semi auto. Here, I need to study and measure all the setting of suspension of the complete vehicle experimentally. . So far, the experimental cost is so high.that too will give the approximate result.

  In the experimental method, we need create the profile of the road using jacks. Its cost too much. I don't want to do that.

  I would like full of model.is of vehicle it is possible to time real suspension test using labview? Let me tell you what I want.

  I have to fix four sensors on four wheels to measure the road disturbance. Then I will join four more sensor on the car body.

  This difference in two reading will give the perfromace of my suspension. Whenever I drive my car, I can get this place profile and the road to the deformation of the car body. Finally, I can measure my performance of car suspension.

  is it possible to get the upward movement of the tire by using sensor in labview? That's what I want exactly. In the experimental method, we spend a lot of time and money to create the profile of the road. but it is already available in envirment. So, I just want to eliminate the road profile. If we eliminate we can easily measure the performance of the suspension.

  The measured value recorded in the vehicle itself using labview computer. So we can better the performace.

  If you do not understand my question pls ask me once again.

  looking for your answer.

  Spengler

  I saw an article that uses labview for quarter car model. but want to do it for the full car model.

  Hello

  I hope that I can understand what you mean, because I did several tests on vehicles and I hope that I can tell you something good for your topic.

  First of all, I am interested in what kind of upward movement? Speed, displacement or same acceleration? You can have a lot of possibilities for a test in the vehicle using LabVIEW, CompactRIO or CompactDAQ, but they are all software problems. If you know which parameter you will measure, we can simply fix the sensors on the suspension and run the test program.

  Also you can collect the State of the car, for instance a speed of ROTATION of the wheels and so on, through the CAN bus.

  If you are you doing PhD on this topic, you may need to find a company to present a better solution. Well, in a Word, it is a part of a doctoral thesis.

  Wilbur

• Continuous measurement and logging model - Hang-Up of may because of the lost output

  The model of continuous measurement and logging in LabVIEW 2012SP1 has a flaw in the Acquisition and recording loop.

  Stop messages manager ignores all messages in the queue of messages. The note says:
  "Stop - empty the queue of all pending messages 'Connect'. Close the reference of TDMS files. "See the picture below.

  This concept breaks if the output message is issued while the Stop message is being processed. The time gap critical to do this is small, because the issue is posted on the front of the queue. But it depends on the treatment in the case of the Manager to stop. Large or small - it can happen.

  The symptom is the application block in an infinite waiting on the queue of message - all commands have no effect, as the rest of the loops are completed. Break terminates the application. Pause button doesn't work anymore. (see this entry forum)
  This problem may appear only after enforcement has become more complex and the schedule has changed - the fresco made model works and does not reveal the question.

  The cure: first of all I thought to preview the elements of the queue before they are scrapped selectively, one by one in the loop to stop, but that usually is not working either, because the output can happen precicely in the laps of time between overview and dequeue - don't forget no outputs are displayed on the front of the queue.

  I think the best option is to replace the flush of the queue in the Stop messages with a selective messages waiting managers one by one and check if the output is - if so, reseat it in the front of the queue. All other messages are discared. That look like this, have seen interesting parts...

  

  Here is the message loop to stop with the problem highlighted.

  As I'm not mistaken, I think it's better that NEITHER updates the model to avoid this problem.

  

  Here is the case of the resting State in the case of stop message:

  

  Us do not hang the CPU run a constant stream of messages ineffective because we only "Log" enqueue messages when we are in the valid state logging (a State of rest here is again a passthrough).

  

  The worst case, it's that there are number of register requests already in the queue when the system shuts down. After receiving the stop idling message, state transitions and other Log messages become non - ops due to the State.

  I consider the opportunity to post a few screws update

  ~ Simon

• TableView: column widths computed for the contents of the cells and ignorant header

  Hallo,

  I use the tableview component. The header font size is higher then that of the cells. The problem is: the width of the column based on the cell that contains the longest string, and if the header-string has a length, then the header is truncated (it shows the points of suspension) and I need to change the width of column manually. How could I solve this problem? The easiest way would be to calculate the width of column on myself. I can't find any method in javafx, allowing to calculate the width of the string in pixels. Bat there is the FontMetrics class and the Graphics class, so it's easy to get the width in pixels. There pendants to this course in JavaFX?

  regarding

  Rafal Z

  It is indeed a problem valid and I had only a short time consuming solution. You can create a new instance of a few well-chosen javafx.scene.Node and apply the same style you have in your column header. You would then proceed with

  new Scene( new Group( YourNode ) );
  YourNode.applyCss( );
  YourColumn.setPrefWidth( YourNode.getLayoutBounds( ).getWidth( ) );
  

  You can get simple text width by using the javafx.scene.text.Text node, but it doesn't have some nice properties, you could use as padding.

• Need a break and then resume the script

  Hello
  
  I need assistance with an animated banner. Basically, it's a slide show. Frame 1 shows img0, box 20 img1, and so on until img5. When I play the movie with control-> test movie, the first img is not long enough to be seen. I would like to add some sort of suspension and then taken actionscript to frame 1. As the pause for 5 seconds and then continue with the rest of the banner.
  
  Thanks in advance,
  Hector

  Framework 1
  Stop();
  ID = setInterval (function () {play (); clearInterval (id)}; 5000);

• Difference between AQ$ TableName and TableName of the queue

  Our BPEL process is listening for the event of Oracle ebiz business. Noted that
  
  Arise-> Message available in wf_deferred (name of the queue table)-> Message available in wf_bpel_qtab (name of the queue table)-> BPEL called proceeding.
  
  After the process described above, noted that State record wf_bpel_qtab is 0 and there is no value in waiting times. On the other hand, according to AQ$ WF_BPEL_QTAB, for the same message that the State is treated and dequeue time is met.
  
  1. why there is difference of data AQ$ TableName and TableName queue
  2. is there any process to ensure that data queued TableName and AQ$ TableName are synchronized
  3. when the data will be deleted from the TableName queue? Currently, the retention of the queue value is 0.
  
  Thank you.

  Hello

  In response:

  * 1. Why there is difference of data AQ$ TableName and queue TableName. *
  The queue_table_name of $ aq is a VIEW based on the QUEUE_TABLE and join other objects queue, you should not query the table of the queue directly because the values here are open to interpretation, until you link them with other available data, so why oracle creates the AQ$ views that you can use.

  * 2. Is there any process to ensure that data queued TableName and AQ$ TableName are in sync *.
  You do not need to "synchronize" a data views with its table, a view is simply a stored SQL statement so when selected you get the data from the table right now.

  * 3. When the data will be deleted from the TableName queue? Currently, the retention of the queue value is 0.*
  The PROCESSED data are removed by background qmon processes when all the messages in the initial queue have been processed, for example if you have multiple subscribers etc. must all were treated to be eligible for deletion, background qmon processes depend on the database parameter aq_tm_processes - the optimum setting for which is oracle version dependent.

  I hope this helps.

  Paul

• AS2, HTTPS and AS2 + HTTP

  Hi all
  
  Can someone help me understand this please.
  
  AS2 is a message encryption protocol
  HTTP and HTTPS are the transport protocol
  What happens when I select AS2 + HTTP and what happens when I select AS2 + HTTPS
  And what haapen if I select the Protocol of business as EDIx12 Exchange credits and Exchange as 'Generic' Protocol, HTTP and HTTPS transport protocol
  
  Can B2B pick up OAGIS 9.0 (IN.) FTP file and drop an OAGIS 9.0 (BOD confirmed) in a FTP?
  You can enqueue OAGIS 7.2 B2B (IN.) transaction by you connecting to XML Gateway and Dequeue a 7.2 OAGIS (consistent DBO) on Oracle advance queue?
  Can B2B pick up a flat-file delimited pipe of FTP?
  
  Global B2B, kind of like we have an MDN to the AS2, do we have a similar setup when we connect to a SFTP trading partner?
  
  
  Thanks in advance
  CNU

  Hi Alain,

  The main difference is that there is no support acknowledgement with the generic Exchange Protocol but AS2 supports the recognition level Exchange (DND). Second is that in Exchange for the AS2, you are using AS2 for TP identifiers in generic Exchange, he must use generic identifiers. In AS2, you can keep the name of file (part of AS2 header), but this support is not there in generic Exchange.

  Kind regards
  Anuj

• Photo for Mac not download pictures

  I have a problem on my Mac where not all photos are uploaded to iCloud. Demand is to tell me that everything is up to date (in Dutch: Zojuist bijgewerkt) Although there are still some 3.899 photo only on my Mac (and so of the iCloud not in Photo). Suspension and resumption of the download do not help. The status remains on 'bijgewerkt Zojuist. Can anyone back me up on this problem? Thanks in advance.

  I use a Mac Mini (model Q4 2014) on OSX 10.11.6 (El Capitan).

  

  

  

  Is it possible that you "referenced" photos (photos stored outside the library of Photos because "Copy items in the photo library" has been disabled at the time wherever they were imported? Photos referenced are not eligible for download.

  If you are not sure, you can create a Smart Album with the 'Photo' test 'is' 'referenced' and see if the photos appear in this album.

• How do you get rid it of an Apple ID if you have two oh?

  How does one remove an Apple ID if there are two of them and one was suspended for security reasons

  You don't need to delete it. Just stop using it. Be aware, however, that purchases made with this identification will need to be re-bought your do second, or you will have to get the first one without suspension and then use this ID password to update the applications purchased by this ID.

  Good luck

  GB

• What to do after the cutting of water on the keyboard?

  Someone spilled cold water, only a small amount on my keyboard. We the dried quickly, but the laptop Satellite came into fashion, suspension and the power indicator led changed to a flashing orange light, and if I plug the power cable it not change color and starts...
  Help.

  Hello

  There is nothing to do. When the electronic power supply detects a hardware malfunction the result blinks code send by orange led. Contact the customer Service of your country partner and explain the situation.

  Good bye

• Skype Lite

  Skype Lite, which was stopped please run that we have a problem to enter the account, I hope the Skype Manager to run the program, because users worried by his suspension and the inability to access the account Vodtro to change before communicate with friends, it hurts you not to respond to the needs of the Mstkhaddmikm and thank

  Skype Lite

  I hope I hope that Taido run Skype Lite can not enter on our account
  I hope that Skype Manager restart Skype Lite for its importance to us

• Tecra A4: suspend/shutdown/logout buttons missing

  Hello
  I am running windows XP on a Tecra A4,
  sometimes and so far I have not found a rule, the buttons associated with the stop/suspension and logoff, on the start menu, are endangered, and the only way to close is the Task Manager.

  Any idea to solve this problem?

  Thank you & best regards
  Federico

  Hello

  I'm a bit confused of Mr. you are not able to see the Start button in the taskbar?
  There you can stop the operating system.
  Have you changed some configuration settings?
  Have you tried to use the System Restore tool that XP offers to roll back the OS in the old days? Select this check box.

  Good bye