Error Ora 3114
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ORA-03114: Not Connected to Oracle tips Oracle Database Tips by Burleson Consulting The "ORA-03114: Not Connected to Oracle" error is commonly found when there is a problem with the network connectivity. The docs note: ORA-03114 not connected to ORACLE Cause: A call to Oracle was attempted when no connection was established. Usually this happens because a user-written program has not logged on. It may also happen if communication trouble causes a disconnection. Action: Try again. If the message recurs and the program is user written, check the program. Common causes for the ORA-03114 error include: Webserver or listener process is not running Missing entry to the tnsnames.ora Network issues Problems with connection pooling (shared servers, MTS) Also, see my notes on troubleshooting network errors in Oracle. If you like Oracle tuning, see the book "Oracle Tuning: The Definitive Reference", with 950 pages of tuning tips and scripts. You can buy it direct from the publisher for 30%-off and get instant access to the code depot of Oracle tuning scripts. �� Burleson is the American Team Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals. Feel free to ask questions on our Oracle forum. Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications. Errata? Oracle technology is changing and we strive to update our BC Oracle support information. If you find an error or have a suggestion for improving our content, we would appreciate your feedback. Just e-mail: and include the URL for the page. Burleson Consulting The Oracle of Database Support Oracle Performance Tuning Remote DBA ServicesCommunityOracle User Group CommunityTopliners CommunityOTN Speaker BureauJava CommunityError: You don't have JavaScript enabled. This tool uses JavaScript and much of it will not work correctly without it enabled. Please turn JavaScript back on and reload this page. Please enter a title. You can not post a blank message. Please type your message and try again. More discussions in General Database Discussions All PlacesDatabaseGeneral Database Discussions This discussion is archived 1 2 Previous Next 24 Replies Latest reply on Oct 1, 2013 9:27 PM by EdStevens ORA-03114 not connected to ORACLE nraju Oct 1, 2013 7:25 AM Hi All,Every day first user who is trying to login from application getting ORA-03114 error. After 3 attempts the application is http://www.dba-oracle.com/t_ora_03114.htm logging to database. Once logged in everything is working fine for all users for the whole day.Same issue again on next day who is logging in for the 1st time.What could be the reason for this kind of behavior. Please suggest on how to fix this issue.Thanks,Raju I have the same question Show 0 Likes(0) 7004Views Tags: none (add) 10gContent tagged with 10g, listenerContent tagged with listener, sqlnetContent tagged with https://community.oracle.com/thread/2587767 sqlnet This content has been marked as final. Show 24 replies 1. Re: ORA-03114 not connected to ORACLE sybrand_b Oct 1, 2013 8:41 AM (in response to nraju) The reason is likely there is a DBA who- doesn't read documentation- doesn't use online resources- can only be bothered to post questions like 'My car doesn't work, please fix my car' without doing any troubleshooting himself and without providing any details.Your request must be considered insulting and rude.----------- Sybrand BakkerSenior Oracle DBA Like Show 0 Likes(0) Actions 2. Re: ORA-03114 not connected to ORACLE nraju Oct 1, 2013 9:56 AM (in response to sybrand_b) Hi,I have read the online info and tried some troubleshooting. But could not get the reason for this issue. The listener log looks good and no error on alertlog about the timed out.That is the reason I requested here to know if anyone has faced similar issue. I am not insulting anyone here or being rude with anyone.Thanks,NR Like Show 0 Likes(0) Actions 3. Re: ORA-03114 not connected to ORACLE ankitbarsainya Oct 1, 2013 10:30 AM (in response to nraju) The last time i faced this issue it was because the session was disconnected by the DBA(read: Myself). Probably you can check truss on you
communication channel Cause: The connection between Client and Server process was broken. It may also happen if the external agent extproc crashes for some reason. Action: There was a communication error that requires further investigation. First, check https://docs.oracle.com/cd/B19306_01/win.102/b14306/appendixb.htm for network problems and review the SQL*Net setup. Also, look in the alert.log file for any errors. Finally, test to see whether the server process is dead and whether a trace file was generated https://scn.sap.com/thread/3563326 at failure time. There may be some system calls in the .NET function which might terminate the process. Remove such calls. ORA-03114: not connected to ORACLE Cause: The connection between Client and Server process was error ora broken. This may also happen if the external agent extproc crashes for some reason. Action: There was a communication error which requires further investigation. First, check for network problems and review the SQL*Net setup. Also, look in the alert.log file for any errors. Finally, test to see whether the server process is dead and whether a trace file was generated at failure time. There may be some system calls error ora 3114 in the .NET function which might terminate the process. Remove such calls. ORA-20100: System.BadImageFormatException. The format of the file is invalid. Cause: The .NET Assembly is not in the proper format. Action: Fix the .NET assembly format that contains the .NET stored procedures or functions. You need to recompile the .NET assembly. ORA-20100: System.IO.FileNotFoundException. File or assembly name
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