Easy Way To Troubleshoot Sqldeveloper Errors



  • 1. Download Fortect
  • 2. Follow the on-screen instructions to run a scan
  • 3. Restart your computer and wait for it to finish running the scan, then follow the on-screen instructions again to remove any viruses found by scanning your computer with Fortect
  • Speed up your PC today with this easy-to-use download.

    If you encounter sqldeveloper error, this user guide can help you. This error usually means that one of the hosts, port, sid / service is the worst, or that there is a network problem.

    This error usually causes one of the Host, Port, Sid / Service to be usually incorrect or a network problem occurs.



    Hello internet marketers! Have you ever encountered the TNS IO error saying “The network card cannot connect easily”? the moment you try to create your own new connection in SQL Developer, or perhaps connect to the database that SQL * Plus editor creates. If so, then most of the people on this blog have come to the right place. I’ll show you how you and your family can fix this mistake.

    So,without further ado, let’s move on to fixing the TNS Item Badass error.

    Step 1. Make Sure You Entered The Correct Information

    To resolve the “Network card cannot establish maximum connection” error, first make sure you enter the correct username and password, as the hostname and port number are correct. While these are probably small things, we cannot avoid them. After: “All the little amenities in the relationship matter most to you.”

    [bctt tweet = “How to fix” Community adapter failed to establish this connection “error in just 2 steps” username = “RebellionRider”]

    You can check Listener.ora for a valid hostname and port sum, just like you need to access your node, since a listener is a machine process. If they do not have access to the listener.ora file, the owners can view the tnsnames.ora file.

    If there is a problem with Listener.File or check the host and port entries in the listener’s registration token for a valid hostname and port number.

    And if you use the TNSnames.ora datafile to check the hostname and number underThe module to be switched, find a tolerance with the same name in the role of your SID, and then check the host support – and the port number specified in this special tag.

    Try logging in now. If this solves your problem, your organization can avoid the next step. But if you still get the “The network adapter absolutely cannot connect” error, take a look at the next step. 2:

    Step Is The Listener Taking A Break?

    How do I fix IO Error in SQL Developer?

    If your disease persists and this fatal error persists, it is likely that many of your listeners are not working. To check if the auditor is active or not, just open a command prompt with legal administrative files and an entry

    This command shows the status of your listener. If the output of this command looks like all of the figures, it is an explicit indication below that your listener is not running. Then you need to start the earphone.

    This will definitely start your listener and will definitely solve your problem.

    Information Byte: If you are having trouble starting the listener, pop Try to start the “OracleOraDb11g_home1TNSListener” Windows service. To do this, open the current run command and write services.msc. This unique one opens your service panel. Click here to find the same, and ok to get started.

    That’s all you need. This should fix the “Network adapter cannot establish all connections” error. Let the power connect with you. Have fun.

    Click here to read and learn how to perform the initial setup of Orcale Enterprise Manager to get started efficiently.

    If you find this useful, please share it on your social network and help me attract more people. If you have further questions, you can reach me on my entire Facebook and Twitter page. Thank you gentlemen and have a nice day!

    Frequently Asked Questions For SQL Developers


    Please note that the data has been changed for security reasons Home sights. However, the problem remains intact.

    I have installed Oracle 11g on a local server database, said herp-devDV.derp.edu.Now I have another Oracle 11g database on the server with a location say derp-db.derp.edu.

    I entered a specific login, username, password, and then hostname and service name in Oracle SQL Maker for herp-devDV.derp.edu and derp- db.derp.edu. I can connect to the schema if derp-db.derp.edu but not herp-devDV.derp.edu. This gives me and my colleagues the following message:


      - test failed: network card could not establish a connection 


    • Port 1521 is not responding to either server when using telnet.
    • I have both.
    • I can access derp-db.derp.edu in Oracle SQL Developer.
    • The Oracle client is often on the local machine + Oracle SQL Developer
    • I can control my desktop remotely from both servers.

    What I Want To Do

    • google search
    • Stack Overflow
    • Stop and start following lnrctl route
    • At herp-devDB.derp.edu I have the status lsnrctl
    • . executed

      sub Go to Of (description = (address = (protocol = ipc) (key = extproc1521)))LISTENING Status------------------------Also known as LISTENINGTNSLSNR version for 64-bit Windows: Version - ProductionStart date 06.03.2014 13:37:22Operating time 6 periods of 24 hours each 0 hours 53 minutes 6 secondsTrace level disabledSecurity ON: Local AuthenticationSNMP operating system disabledListener settings file D:  oracle  product  11.2.0  dbhome_1  network  admin  listener.Log oralistener file d:  oracle  diag  tnslsnr  HERP-DEVDB  listener  alert  log.xmlEndpoint Listening Summary ...  (DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (PIPENAME = .  Pipe  EXTPROC1521ipc)))  (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp) (HTE = HERP-DEVDB.derp.edu) (PORT = 1521)))Brief description of services ...Service "CLRExtProc" comes with 1 instance (s).  The clrextproc instance status, UNKNOWN, has 1 manager (s) for our service ...Service "HERPDEVDBXDB" has 1 instance (s). A READY herpdevdb instance has 1 manager (s) for this service ...The herpdevdb service offers 1 instance (s). The herpdevdb instance, READY, has 1 manager (s) for my service ...The order was completed successfully 

    = sid_list_listener (SID_LIST = (SID_DESC = (SID_NAME = CLRExtProc) (ORACLE_HOME resp.According to D: oracle product 11.2.0 dbhome_1) (PROGRAM = external process) = (envs "EXTPROC_DLLS = ONLY: D: oracle product 11.2.0 dbhome_1 bin oracr11.dll") ) )LISTENING = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521)) (ADDRESS = (PROTOCOL = TCP) (HTE = HERP-DEVDB.derp.edu) (PORT = 1521)) ) )

    In this post, I’ll admit that it’s best to scratch the back of my head because I don’t see other things that stand out and give me reasons that shouldn’t work.


    Is your PC running slow? Do you have problems starting up Windows? Don't despair! Fortect is the solution for you. This powerful and easy-to-use tool will diagnose and repair your PC, increasing system performance, optimizing memory, and improving security in the process. So don't wait - download Fortect today!

  • 1. Download Fortect
  • 2. Follow the on-screen instructions to run a scan
  • 3. Restart your computer and wait for it to finish running the scan, then follow the on-screen instructions again to remove any viruses found by scanning your computer with Fortect

  • The only clue is when I check derp-db.derp.edu and run the lsnrctl status job. Pleasesee excerpt below:

    sqldeveloper error

      market connection with (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = DERP-DB.edu) (PORT = 1521)))LISTENING STATE------------------------Also known as LISTENINGTNSLSNR Version for 64-bit Windows: Version - ProductionStart of meeting 18-MAY-2014 02:19:01Opening hours 22 days 12 hours 23 minutes 19 seconds.Trace level disabledSecurity ON: Local Operating System AuthenticationSNMP disabled--- Etc ---- 

    sqldeveloper error

    So at first I’m still scratching. Why does derp-db have to establish a connection that DERP-DB.edu can but herp-devDB doesconnected to EXTPROC1521? How can I prepare for this? Listener.ora and other documents between the two servers can be nearly identical except for the name, which affects instances.HM.

    • EDIT1: I have a listener.ora in Herp. This still didn’t fix the problem.

    • EDIT2: I am not allowed to telnet in derp-db.derp.edu on port 1521. But can I still connect it to SQL Developer? Which ?

    • EDIT 3 I also cannot telnet to 1521 in herp-devdb.derp.edu.
    • EDIT4 I am unable to ping the IP addresses of the two servers.



    Speed up your PC today with this easy-to-use download.

    Where is error in SQL Developer?

    Once created, add or replace Show Errors and use F5 instead of Ctrl + Enter. This will either run the entire script or ask Oracle to show us the errors for the session.

    Why my SQL Developer is not opening?

    I had a leadership problem too! You should go to: C: Users-your username- AppData Roaming sqldeveloper-version of your SQL developer – there is also a file named product. conf right here. Right click it and edit it with notepad in the document, edit your address in Java Home and register this tool.




    Errore Sqldeveloper
    Sqldeveloper Fehler
    Sqldeveloper Fout
    Erreur Sqldeveloper
    Sqldeveloper 오류
    Oshibka Sqldeveloper
    Erro Sqldeveloper
    Error De Sqldeveloper
    Blad Programisty Programu Sql
    Sqldeveloper Fel