How to fix an asynchronous communication between fscommand and javascript

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• Communication between TNS_Listener and the listener of the Apex

  Hi all
  I how communication between TNS Listener, receiver of the Apex and Apex? For some reason, I got the following error of Apex listener:

  Caused by: oracle.dbtools.rt.web.WebException: Unable to start the Universal Connection Pool: oracle.ucp.UniversalConnectionPoolException: Cannot get Connection from Datasource
  .
  .
  .
  Caused by: oracle.net.ns.NetException: Listener refused the connection with the following error:
  ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

  I truncated messages Java object.
  
  This has happened when I tried to connect to the Apex. So I can fix it by going to:

  http://localhost:8080/apex/listenerConfigure

  then everything worked fine.
  
  My listener.ora file:

  LISTENER =
    (DESCRIPTION_LIST =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      )
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = firefly.snowdrop.com)(PORT = 1521))
      )
    )
  
  ADR_BASE_LISTENER = /usr/local/oracle
  
  ADR_BASE_ORACLE_LISTENER = /usr/local/oracle

  My tnsnames.ora file

  INARA =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = firefly.snowdrop.com)(PORT = 1521))
      (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = inara.snowdrop.com)
     )
    )

  When inara is the name of the instance and the firefly is the host name.
  
  Is that the order of start if first the TNS Listener or listener Apex matter first?
  
  Best regards
  Val
  
  Published by: Valerie good-natured August 1, 2011 05:47

  Hi Val,

  My tnsnames.ora is configured for an existing server and there is no client configurations like sqlplus, sql or earpiece of the apex developer. However until now the server can connect to customers without problem (I just discover that unreproducible error on 'impossible to find the SID' sometimes occurs at the beginning of the Summit, the kick-off and can be solved by waiting for a while to connect to reconnect), so again I must modify the .ora?

  No, if your database listener is configured properly (i.e., he listens to the SID that you try to connect to the network interface/hostname/ip address /... she must use), there is no need to make any other configuration, especially not on another machine.

  -Udo

• Series communication between computer and cRIO

  Hello

  I am not new to Labview or cRIO programming, however, venture in for my first try at the serial communication.  I have a controller (not original NOR) that sends data over a serial RS232 network I want to open a parallel session to the data that I collect with a cRIO.  Before we get to integrate, I try to test with a series, my computer cable and hyperterminal communications and the serial port cRIO.  I followed and validated exploitation and drivers with the following text:

  How to do a loopback Test series
  http://www.NI.com/white-paper/3450/en

  However, when I try to use the following example, I get nothing:

  Transfer data between cRIO and host series
  https://decibel.NI.com/content/docs/doc-3816

  Any ideas on where to start?  I appreciate very much all the advice.

  Thank you.

  I have confirmed that it is a right.  I'll try a null-modem cable.

  Thank you!

• Communication between LabVIEW and MCU based on Modbus Protocol

  Hello

  I am a first year student in the port.and series applications see you, my projiect needs to communicate between LV and MCU based on Modbus Protocol.all configure it are correct, but the lv to send false information which is not suitable for modbus.i do not know how to fix it.

  My programs are:

  Why did you decide to write your own code instead of what is already available? If you had done a search, you would have easily found the modbus library. Just give a try.

• Communication between Labview and Rn42 Bluetooth

  Hello

  I am currently working on a project that requires communication between a bluetooth equipment and my pc with bluetooth built-in. The bluetooth hardware is verfied working with Blueterm on android. However I'm unable to connect with my laptop blueterm. Is back a unabe to connect error. I use bluetooth vi without series or visa. This method is suggested? Thank you

  
  

• How to fix shortcuts, boot record (MBR) principal and danaged of Configuration data (BCD) start by Alureon.A Trojan horse.

  My windows xp computer has been infected by a Trojan called Alureon.A. I was able to remove this virus, but all my shortcut icons are not displayed, and I understand that my master boot record (MBR) and boot configuration data (BCD) were damaged. How can I repair this damage?
  Thank you.

  Hi Rjjb2006,

  Follow the suggestions below for a possible solution:

  Method 1: You can run the fix it from the link below and check the results.

  Difficulty of broken desktop shortcuts and common system maintenance tasks

  http://support.Microsoft.com/mats/system_maintenance_for_windows

  Method 2: You can read the article of Basr Microsoft Knowledge for the repair of the specific element that causes Windows not to load not.

  Refer to the first method in the article mentioned:

  Computer stops responding with a black screen when you start Windows XP

  http://support.Microsoft.com/kb/314503

  Method 3: I also suggest that you scan your computer with the Microsoft Security Scanner, which would help us to get rid of viruses, spyware and other malware

  The Microsoft Security Scanner is a downloadable security tool for free which allows analysis at the application and helps remove viruses, spyware and other malware. It works with your current antivirus software.

  http://www.Microsoft.com/security/scanner/en-us/default.aspx

  Note: The Microsoft Safety Scanner ends 10 days after being downloaded. To restart a scan with the latest definitions of anti-malware, download and run the Microsoft Safety Scanner again.

  Important: While running scan on the hard drive if bad sectors are found on the hard drive when scanning try to repair this area if all available on which data may be lost.

  I hope this helps.

• How to fix the missing lines of text and formatting lost, hyphenated words and text disturbed flow, after the conversion of PDF in word doc to allow editing? using WPS office application on Android Galaxy tablet. tried Polaris app and got a blank document

  How to fix the missing text and updated lines shaped, hyphenated words and patterns disrupted, lost after export PDF document to word doc to allow editing? using WPS office application on Android Galaxy tablet. tried Polaris app and got a blank document.

  Thank you!

  Hi Spider,

  Adobe Acrobat on mobile devices can be used for editing. I will suggest you to perform the task on PC or Mac.

  Thank you

  Abhishek

• Communication between virtual and real session

  A virtual session may communicate information to the real machine? In other words, if a virtual session running can I send a message or a text to be saved on the actual computer?

  I'm under v VMWare Workstation 7.1.1 on a PC running Windows XP Pro.

  Sure! I'm not sure what exactly mean you by 'send a message or text' but you have several options:

  By default (depending on how your virtual computer was created) under the virtual machine settings > Options > Guest insulation, Drag and Drop and copy and paste are enabled. This allows you to freely drag and drop and copy and paste between guest and host operating systems. If these are not enabled, you can activate them. It's one of the ways safer and easier to share data.

  You can also create, under the ' Virtual Machine Settings > Options > folders ', a file shared between the two. Although some do not recommend this for reasons of performance and security.

  You can share files over the network by using shared folders, just like any physical PC 2 would be to share files. If you don't know how to do this, there are a lot of tutorials on the web.

  It is a bit more advanced, but you can also share a real physical drive (see the user manual). It is the least secure method, but offers the best performance if you regularly share huge amounts of data (several tens or hundreds of gigabytes).

• How can I justify the difference between varchar and varchar2 data type

  Hi all
  
  How can I justify the difference between the data type varchar and varchar2 on any table for space management.
  Is there any query to justify this.
  
  
  Concerning
  Girish
  
  Published by: boujemaa on February 2, 2011 21:23

  http://download.Oracle.com/docs/CD/B19306_01/server.102/b14220/datatype.htm#sthref3780

  
  The VARCHAR data type

  The VARCHAR data type is synonymous with the VARCHAR2 data type. To avoid any changes in behavior, always use the VARCHAR2 data type to store strings of variable length.
  

• Ideas on how to create a sine wave between 0 and 10 V with NI 5412?

  Hello

  I tried to create a sine wave from 0 to 10 volts on a 5412 OR. I have 2 problems and I have a question:

  (1) I can't generate a waveform with lag, even when using the examples of NEITHER.

  (2) the value of the offset, that I can set the camera is of +/-25% range of amplitudes. Do I have to create an arbitrary waveform myself?

  (3) in the brochure it says I can get 12 v peak-to-peak. Does this mean that it is between-6 and 6, or it is between 0 and 12?

  I would appreciate it if I could see an example.

  Thank you very much.

  Hi, several notes:

  (1) the peak to peak voltage is 12V. For example, it can operate between 0 - 12V.

  (2) the shift of 25% limit is for a given wave. That means assuming that it will create a wave, it cannot compensate for 25% of the beach. The solution is to create an arbitrary wave (e.g. a sine between 0 and 10 V) and the function generator to create rather than attempt to compensate for a sine wave.

  Thanks for the help though.

• Error: There is no communication between computer and printer

  Original title;

  printer not printihg after the installation of new updates

  I get messege there is no commacation between computer and printer

  Hello

  1. What is the brand and model of the printer?

  2. What are the updates that have been installed before the show?

  See the Windows updates are installed

  http://Windows.Microsoft.com/en-us/Windows7/see-which-Windows-updates-are-installed

  3. have you checked the status of the printer in Device Manager?

  Open the Device Manager

  http://Windows.Microsoft.com/en-us/Windows7/open-Device-Manager

  4. what operating system is installed on the computer?

  You can Open the printer Troubleshooter and check if it makes a difference:
  http://Windows.Microsoft.com/en-us/Windows7/open-the-printer-Troubleshooter

  You can follow this link and check if it helps.

  Printer in Windows problems

  Let us know the result!

• How to add an additional note between < ROWSET > and < ROW >

  Hi all

  Is there a way to add an additional NŒUD between < ROWSET > and < ROW > which appears ONCE per each XML document?

  <? XML version = "1.0"? >

  rowset <>

  < ROW >

  < > 7369 EMPNO < / EMPNO >

  SMITH < ENAME > < / ENAME >

  CLERK of < JOB > < / JOB >

  < MGR > 7902 < / MGR >

  < HIREDATE > 17 December 80 < / HIREDATE >

  < > 800 SAL < / SAL >

  < DEPTNO > 20 < / DEPTNO >

  < / ROW >

  < ROW >

  < > 7499 EMPNO < / EMPNO >

  ALLEN < ENAME > < / ENAME >

  SELLER of < JOB > < / JOB >

  < MGR > 7698 < / MGR >

  < HIREDATE > 20 February 81 < / HIREDATE >

  < SAL > 1600 < / SAL >

  < Order > 300 < / COMM >

  < DEPTNO > 30 < / DEPTNO >

  < / ROW >

  ...

  < / LINES >

  Will be

  <? XML version = "1.0"? >

  rowset <>

  new <>test < / test >

  < ROW >

  < > 7369 EMPNO < / EMPNO >

  SMITH < ENAME > < / ENAME >

  CLERK of < JOB > < / JOB >

  < MGR > 7902 < / MGR >

  < HIREDATE > 17 December 80 < / HIREDATE >

  < > 800 SAL < / SAL >

  < DEPTNO > 20 < / DEPTNO >

  < / ROW >

  < ROW >

  < > 7499 EMPNO < / EMPNO >

  ALLEN < ENAME > < / ENAME >

  SELLER of < JOB > < / JOB >

  < MGR > 7698 < / MGR >

  < HIREDATE > 20 February 81 < / HIREDATE >

  < SAL > 1600 < / SAL >

  < Order > 300 < / COMM >

  < DEPTNO > 30 < / DEPTNO >

  < / ROW >

  ...

  < / LINES >

  Thank you in advance, Sonya

  I don't think it's possible with dbms_xmlgen. I suggest you explore sql/xml to generate your own code xml using the keywords etc. of xmlelement, xmlagg.

  For example:

  Select xmlelement ("LINES"

  , xmlelement ("TEST", "NEW")

  XMLAGG (XMLELEMENT ("ROW",

  XMLFOREST (EMPNO,

  ENAME

  WORK

  BISHOP

  HIREDATE

  SAL

  COMM

  DEPTNO

  ) AS THE FOREST - XMLFOREST

  ) - LINE

  ) - TOT.

  ) - ROWSET

  from EMP;

  you will look like the following:

  New

  7369

  SMITH

  CLERK

  7902

  1980 12-17

  800

  20

  7499

  ALLEN

  SELLER

  7698

  1980-02-20

  1600

  300

  30

• How to implement a direct communication between the two boards of singleRio using Ethernet?

  Now in my project, we chose 2 SingleRio - 9032 s as our controllers. We need the two controller can be given exchanged directly using Ethrenet? How can I do?

  yuefiew,

  This discussion probably belonged in the LabVIEW RT forum.

  However, I would suggest looking in the LabVIEW shared Variables.  The two links below will give you more information on the subject:

  http://zone.NI.com/DevZone/CDA/tut/p/ID/4679

  http://zone.NI.com/DevZone/CDA/tut/p/ID/9900

  Kind regards

• How do I network a printer between XP and a Windows 7 computer?

  I'm running Windows XP on my desktop and I want to connect my Epson printer to my laptop that runs Windows 7 How to accomplish this?

  I am running Windows XP Home version on my desktop computer and I would like to connect my Epson SX400 printer to my new laptop running Windows 7. How to do this.  I tried to install the printer drivers on the laptop, but it is not recognized.

  These web pages should help you implement:

  Sharing files and printers with different versions of Windows
  Networking of computers running different versions of Windows
  Share files and printers between Windows 7 and XP

  For more details, see Wndows 7 and returned home group sharing .

  Boulder computer Maven
  Most Microsoft Valuable Professional

• Speed of communication between workstation and server

  Is there a way when I access my router settings that I can increase the amount of time it takes to run a report on the data of my server?  All I want to do is run a report of 100 emails or more leads is entered in the database today.  But it takes so long for the server to send this info to a spreadsheet on my workstation.  Don't you think that it is a router issue?

  What is the number of your router model. These are settings that you can set your may be this could solve the problem. If you have a firewall or an Antivirus on your computer try turning it off. Login to your configuration page of the router and under configuration tab change the MTU to 1365 size and click on save settings. After that you can try to transfer the files between your computer and check how his work.