11g will not be 'listen' SQLDeveloper

I am an adjunct professor at Northern Virginia Community College and I teach again a SQL Fundamentals courses this semester. The teaching course is not a problem. The problem is to configure an Oracle environment that students can access. I don't have these skills, and Oracle is a very complex environment.

I installed Oracle 11 g on a Windows machine in the computer lab. It's an XP box, but last year students were able to use the installation of Oracle 10 g on it well on her in a nearby classroom. It seemed to install OK, and I was able to connect using SQL * more. I went to one of the lab workstations and open SQLDeveloper, since that was what the students preferred to use year last to talk to the database. In SQL Developer, I put in the following connection information:

Connection name: LO Server
Username: System
Password: the one that worked when I installed >
HostName: does not matter but it is good >
Port: 1521
SID: oracle

That's when I got the mysterious Developer SQL error when I tried to connect by pressing the Test button of the SQL Developer:

"Status: failed - Test has failed: IO exception: the network adapter could not establish the connection.

After some research on the web and the discussion with another instructor, we believe that the problem comes from Oracle database configuration, not with SQL Developer. We are able to log into the control panel of database via a web interface of my computer without problem. Our best estimate is that Oracle must be configured to "listen" on port 1521 to 'see' applications for SQL Developer. I found a utility Oracle which supposedly opens the ports, in 1521, was added, but it doesn't seem to work. I have also modified a listener.ora file and added the port, but did not know the exact syntax because it does not work. We stopped and restarted Oracle, even rebooted the machine, hoping he would go away. No luck.

Oddly enough, we ran SQL Developer on the same computer as the database and it gave the same error. It's one of the reasons why we think it's a configuration issue with the database.

I would appreciate any idea that you can provide. I have to learn from mid-August, and it is something that would be probably obvious to a person with the right skills seems to be all that I need trouble. The College doesn't have any support contract with Oracle that I am aware, that they use for most SQLServer. (If there is a way to get free Oracle support, please let me know.)

Developer SQL can connect two ways

1. with Java (how you try)

2. with your Net80 and that one needs a tnsnames.ora

Developer SQL will use the tnsname.ora in the Oracle home. But since you have two sb92075 was right (again). There might be a conflict, but you try a java connect so I doubt it.

You posted this

ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = LW230-NV85702.nvstu.edu)(PORT = 1522))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl.nvstu.edu)
)
)

Note the post (not 1521) setting

Change this with SQL Developer so that your settings for you to connect it is:

Username: system
Password: 
hostname: 
Port: 1522
SID: orcl

mseberg

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = LW230-NV
85702.nvstu.edu)(PORT = 1522)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAM
E = orcl.nvstu.edu)))
OK (20 msec)

It confirms the 1522 here too

Published by: mseberg on July 16, 2011 11:49

istening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1522ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=LW230-NV085702.nvstu.edu)(PORT=1522)
))
Services Summary...
Service "oracleXDB.nvstu.edu" has 1 instance(s).
Instance "oracle", status READY, has 1 handler(s) for this service...
Service "orcl.nvstu.edu" has 1 instance(s).
Instance "oracle", status READY, has 1 handler(s) for this service...
Service "orcl_XPT.nvstu.edu" has 1 instance(s).
Instance "oracle", status READY, has 1 handler(s) for this service...
The command completed successfully

And here. I'm OK he beat to death!

Published by: mseberg on July 16, 2011 11:51

Tags: Database

Similar Questions

  • The second listener intake will not work. My DV6000 is one month old.

    The second listener intake will not work, but I get static when I plug my headphones in there. The other socket works well. I need help fixing it. My DV6000 is one month old.

    Hello

    Robert96 wrote:

    The second listener intake will not work, but I get static when I plug my headphones in there. The other socket works well. I need help fixing it. My DV6000 is one month old.

    One of the is for audio in and one for the audio output. Some versions of some have a plug S/PD/F. Chances are the reason why you get static is that if you connect a headset with a microphone jack, it will try to behave like a microphone. It will not work properly.

    Then. a summary. There is only a single take of earphone

    Best regards
    ERICO

  • Vista will not update Vista or AVG, or the system will upload to sharing sites, such as BitComet (States 'State Listening Port unknown') [if connected DHT]

    Briefly: Even with the firewall, retrieve Vista and AVG will not connect, and downloads of some programmes not; connect for example, Limewire and BitComet will fail.

    Since you are doing behavior at high risk for the computer, your computer is probably infected.

    Go through these stages of systematically General malware removal:
    http://www.elephantboycomputers.com/page2.html#Removing_Malware

    MS - MVP - Elephant Boy computers - don't panic!

  • Oracle 11g COE of custom components will not activate

    I have a custom component of Oracle 11 COE who will not activate.

    It is a development server, and I was thinking he was a supplier problem given that the component will not activate little matter how many times I rebooted the WCC server.

    Just to rule COE, I advanced and created a component that is empty, it enabled and rebooted WCC. I get the exact same message of ""needs to restart to activate " "

    What should I look for in WCC to solve this problem?

    If you look under Administration > Configuration for Instance_name, is the component indicated under active components? It could be that the component is enabled, but the alert message disappears forever.

    https://blogs.Oracle.com/Kyle/entry/adding_your_own_alert_messages

    Jonathan

    https://jonathanhult.com

  • badge iPhone app notification will not clear

    badge iPhone app notification will not clear. The version of the software 6 using iphone 9.3.5. The phone application will not erase the last badge referring to a message I've ever listened to and deleted. The problem started after updating iOS version 9.3.4 and continues with 9.3.5. Research on possible solutions, apparently this has been a recurring problem with the iPhone over the past years.  Possible solutions included notification of closure when it pops up, restart the iphone, update to the latest version of iOS, activating / disabling the group by App.  I had to disable notifications from app badge hoping that Apple will provide a solution. In the meantime his is going to be a pain not having not not available visual notification.

    Tap Settings > general > reset > reset all settings

  • My entertainment sainburys application will not work in AirPlay on iOS 9.3

    Entertainment sainburys app will not work in AirPlay I can watch a movie on my iPad, but can't listen to my TV through the air Apple TV device, I can see my iPad on screen and YouTube plays just this app is not working I am using iOS 9.3

    Some applications do not broadcast their content you are sure that your application won't, a lot of apps that provide movies or TV series you block using AirPlay.

  • Videos and music will not play with Firefox. I did what all said and it did not help!

    When you use google chrome, everything works perfectly. If you use Firefox, videos do not work, music will not work, and even video games on facebook do not work. I tried what the article told me to do, but it did not help. I even uninstalled and reinstall firefox and nothing. I really frustrated, I use Firefox for listening to music while I play games with google. Someone please HELP!
    Additional information: I have disabled all of the plugins, youtube started working. I advanced and compatible Flash, Silverlight and Java. Nothing is activated, and music and games still does not work.

    This can be caused by a recent update of Flash 11.3.

    See:

    You can try 11.2 Flash you can download it via this link:

  • my laptop will not import my photos and my itunes doesn't sync new music

    I'm not sure that the question is my Iphone 5 or the laptop. When I plug my phone both the laptop and the phone between them pick up and my phone syncs automatically, however, my phone always wonder if I want to import new photos and then once I clicked on Yes, it says that no pictures are available. Also when you try to import pictures on an app on the phone, he could not pick up one of my recent photos.

    As well as what I downloaded some new music on my itunes on my laptop, however, given that I brought music apple songs downloaded on my itunes on my laptop will not sync and I don't know why. The phone syncs and always put my new music on the phone when it syncs, but it's their import is no longer automatically.

    Thanks for any help in advance.

    You can copy photos manually from the film. It might sound like a somewhat random Folders collection.

    With Apple active any music that you add to your library becomes automatically available for you to download or listen to on your device. Music sync via USB, however.

    TT2

  • Satellite L305D-S5934 Pro - keyboard will not perform a double click

    Hello

    I have Satellite L305D-S5934 and the keyboard does not work properly. I can use the keyapad to point but it wll not perform a double click. Left click will not work... I think it's a hardware problem, I have tried resetting everything and downloaded synaptics at least 3 times.

    Anyone have any suggestions?
    It does not work with a USB mouse. It is still under warranty, but the agent wants to keep my laptop for 6 weeks to fix while they get a part starting from the United States. and they don't test it for me for free so I'm not even sure this is harware related to 100%?

    Hope someone can help me, thanks

    Hello!

    Do you mean before the touchpad mouse left button or tap on the touchpad function?

    The listen function must be activated first. This means click on the left button of the mouse TouchPad.
    Go to control panel > mouse > device settings > settings > Tapping. There you can check if the function is enabled or not.

    Good bye

  • GarageBand will not play Mid-note

    During playback, when I jump the playhead in the distance in the single set song Garageband (version 10.1.0, on a Macbook Pro Retina early 2015) will be a recently struck note after all what I am in the middle of.

    Which means long synth keys don't play unless I was to save another key of the piano being hit, or take the playhead at the beginning when I hit that note and listen to everything instead of jumping to a part of the song that I want to work. All sounds are instruments Garageband.

    It of incredibly frustrating and slows down my work process. Any ideas?

    Ghostboot wrote:

    When I move the playhead to the longest in the song, Garageband [...] will only play a note recently struck after all what I am in the middle of.

    I'm afraid that this is just how GB works (since version 1)

  • iPod Nano 7th Gen will not be running

    I was listening to just music and disable bluetooth speaker that I was listening to music on. So when I go to see my iPod, I notice it lights. I've tried everything. Now all buttons at the same time, hold the "home" button and lock button and still nothing. Help, please! I already had problems with the iPod before. I don't want to lose all my music to the iPod AGAIN! My iPod is a 2012 model if that helps. Please help!

    You must keep all your songs stored in your iTunes library, on your computer.  Then, even if your iPod is lost or breaks, you will not lose your music.  (And then, back up your iTunes library on the computer database, so you will not lose your music, even if your computer breaks or needs to be deleted.)

    What happens when you connect it to the USB on your computer?  If nothing appears on the screen of the iPod?  If so, what appears on the screen of the iPod?

  • Satellite A200 28H: F6 floppy will not work when installing XP

    Hello

    I am trying to install Windows XP pro on my new laptop (Satellite A200 28 H), and since it needs driver SATA, I downloaded the driver suitable for my laptop (Satellite A200 28 H), put it on a floppy disk for use with a USB floppy drive (which works fine), press "F6" when appropriate and everything... But it simply doesn't. I had training as a technician for a few years, so even thouh that is no longer my work and I might be a little rusty, I think I still know at least a little what I do... Well, apparently I'm more image than I thought!

    I've tried several things, and this is what I get:

    * If I don't use all the disks, Windows XP will not find the hard drive. Which was intended, no problems here, don't except for the fact that it is completely useless for me :)

    * If I force the driver on the floppy disk, despite Windows tells me that is already a driver that can be used, then within 10 seconds I get a BSOD with the stop message 0x7B (found or inaccessible boot device).

    * If I use the floppy drive, but do not force the driver and listen instead of Windows ("oh, you already have a driver? ("OK, then, use and too bad that diskette"), I can actually finish the installation process. Windows will copy all the necessary files on the disk, it will even restart correctly after that and moved on. But when the installation is complete, the computer will restart, I'll see the loading for a second screen, and then, BSOD stop 0x7B again.

    I'm sure I downloaded the driver for my computer. In fact, I also tried a couple of bad drivers too, just to be safe (IE I use Intel Matrix for ICH8M, but I also tried the ICH7M to be sure), I tried with drivers downloaded from the Toshiba site, on the site of Intel and whatnot-other-website-for-newbies-or-powerusers, and I still have the same behavior as described above.

    I tried partitioning / formatting during installation, and I also tried leaving the file system intact. If I do the latter, the only difference is that I have offered 2 possible OS to boot from, the two being Windows XP and both failed miserably.

    It's probably worth mentioning that, if I use the recovery DVDs and start over and clean with Vista, I have no problem whatsoever, except for the loaded gazillion process during startup, the RAM already used half and applications useless hundred I don't give a darn on... And the fact that some applications that I need work just can not be installed on Vista.

    If anyone has any idea how to solve this problem, I would be very grateful!

    Hello

    The procedure, including the SATA drivers in Win XP using the external USB floppy drive is very easy.
    First you need to download the Storage Manager and having to put on the diskette.

    During the installation of Win XP you must press F6 for inclusion since the external floppy drive and follow the new instructions on the screen.

    _Note; _
    Very important is that your XP CD Win would contains SP2!
    Without SP2 a BSOD can appears and could break up of installation!

    Don t format or don t create all partitions after the installation of the SATA driver. It can erase the installed and included from HARD disk SATA driver.

    Last but not least some readers of external floppy drive are not supported. I read that some users had some problems with an external FDD drives they tested another drive and it worked finally

    Check the recommendations may indicate that it might be useful

    Good bye

  • Why does Microsoft consider my situation of REAL account so inconsequential they they will not help?

    How to get microsoft to remove an old e-mail address of my Live account, I asked 3 times, they tell me just ease of details to remove.

    BUT the new holder of the account OR the 'catch all' account at the level of the domain holder must keep the reactivation of the email because I ask to remove and it sends an email. Microsoft will not listen AND they don't care what my xBox account with my credit card details. I NEED the old deleted email!
    At least the PSN Network hackers were not facilitated. Microsoft is actually ALLOW people to access my account by removing is not it. I had to reset my password AND go through the process of validation ANY who is to tell one of the staff said microsoft my details of credit card because someone changed some of my contact information. I don't know how long they are in my account.
    I wouldn't have this account more if it is not required by the XBox and my Microsoft Training, simply because of this lack of compassion!

    This comment forum is unfortunately not Hotmail or Live Mail, Xbox.

    Contact Xbox support:
    http://support.Xbox.com/en-us/pages/contact-us.aspx

    Xbox technical support forums:
    http://forums.Xbox.com/xbox_forums/xbox_support/default.aspx

    You can find Live.com support by email here:
    http://windowslivehelp.com/product.aspx?ProductID=15

    Real account compromise - unauthorized account access

    http://windowslivehelp.com/solution.aspx?SolutionID=6ea0c7b3-1473-4176-b03f-145b951dcb41

    Hotmail support:

    http://windowslivehelp.com/product.aspx?ProductID=1

    Account compromised Hotmail - unauthorized account access:

    http://windowslivehelp.com/solution.aspx?SolutionID=6ea0c7b3-1473-4176-b03f-145b951dcb41

  • Sansa fuze will not update track licenses

    I must have the most ghetto sansa fuze there because I had so many problems with mine. I currently have two. I have the new firmware from sandisk sansa updater program.

    First of all:

    When I connect my sansa fuze to my PC to update track licenses, add songs, etc. that my computer slows down considerably and all internet access is stopped. I can't sign my account on rhapsody because the internet will not work. And since internet does not work when it is connected, I could not update my licenses and now they are all expired. Help, please!

    Second:

    I took the same sansa fuse to another computer. When I plugged on the second computer, I had no problem. However, when I try to update the licenses, the Rhapsody program says that the function is finished. But when I try to listen to music in the "rocket", the "rocket" tells me that track licenses are obsolete. I've updated the entire library and internal and external disks, appears in the pane. I hope this makes some sense. Any help is appreciated.

    It's the limitation of the Janus DRM.  You must update the licenses of track on the same PC as they were transferred from.

    This isn't a fault with Rhapsody, it's part of the way in which DRM system has been designed.  Format RealAudio RAX of Rhapsody has circumvented this restriction by using the Rhapsody from Sansa e200R.

    Regarding the license updates in the last 24 hours, the real servers had issues.  The system is back today!  Yep, I met the same question, a handful of devices update last night.

    Bob

  • E260 will not go past the opening screen

    I got my 260 E for about a year and later that yesterday I went to turn it on, but it remains on the logon screen. Enter mode 'sleep', but I can't listen to music or find out anything because it will not go beyond the opening screen. The second of 10-15 soft reset I tried a hundred times, but it does not work.

    If remove/insert the battery did not work, the next step would be to format the drive.  You can also try to update the firmware.  I hope that you have a model v1.  What does say on the back of the drive?  Do you see a blue Sansa logo on the splash screen?  If so, you have a model v2 with no recovery mode.

    Assuming you have a v1 with the recovery mode:

    1. Turn off the player.
    2. Slide the key lock (to headphone jack).
    3. Press and hold the RECORD when connecting to the PC.
    4. Output RECORD when the "Welcome to recovery mode" message on the LCD s drive.
    5. Open my computer/Windows explore and see if you can find a new "16 MB - FORMAT" labeled removable flash drive
    6. Right-click on 16 MB-FORMAT and select new folder.
    7. Name the new folder "sansa.fmt" (without the quotes).
    8. Use the remove safely icon in the system tray.
    9. HOLD reset in the unlocked position.
    10. Disconnect the player from the PC.

    The player must, by seeing the folder sansa.fmt in the root directory of the drive, proceed to format itself.  Pay attention to any error/success message see you.  If all goes well, it will tell the full format and then to restart.

    DO NOT TRY TO FORMAT THE VOLUME 16 MB-FORMAT!

    If the format does not work, the next step is to try to update the firmware.  Go to the correct sticky message and download the firmware for your region .24A (assuming that he is a player of v1).  Drag and drop the embedded .mi4 and ROM files of archive of the firmware in the root directory of the 16 MB-FORMAT drive.  Make sure that the files end up in the root directory and not in a subdirectory.  Unplug and restart the player as before.

Maybe you are looking for

  • Chart WPF with visual host RenderMode.Hardware error

    graph rendermode = RenderMode.Hardware debug error: System.Windows.Threading.Dispatcher.Run (); The calling thread could not access this object because another thread has the object.

  • BlackBerry App Bank of America app no longer works.

    My application of BofA has stopped working recently. Someone knows what's the problem? Thank you DW

  • 4535 proBook s video card memory

    Hello! I apologize for what is fake, but I recently bought a noteboot HP ProBook 4535 s with a video card AMD Radeon 6480 G and I do not understand if it has an internal memory or uses the memory of RAM. I checked many sites and found different answe

  • Error playing the virtual machine in VMware Player

    Hi allI am getting error below while reading VM(UI VM.ova) UI in VMware Player. Everyone has also same error. Help, please.Thanks in advance,RizQad

  • import from opening

    I'm trying to import into Lightroom from an Aperture library. I've accessed the import dialog box in file / plugin Extras. I chose an Aperture library and Lightroom seems to have locked up. It's been at least 30 minutes that I launched the applicatio