Connection String With a bit more knowledge about how Oracle actually connects to databases, we can now look at how connection strings are formatted. This parameter is optional and does not have to exist; if we don't specify it, then service would be dynamically registered. For example, the correct jdbc string should be. Volunteer Posts: 1488 Joined: Wed Mar 19, 2008 11:34 am Location: Germany I'm trying all possibilities but i obtain always the same error. Seems to be only a minor difference to your 12514 error. It will give u the tns decription and all most of the time host name is different which is not matching. The error I receive is: java.
Remote Emergency Support provided by. The thick driver has some advanced features that mainly improve performance in some cases, but it requires an additional configuration setting inside an Oracle directory on each client computer that wants to access the database server. The first of your connection strings is what I normally use. The likely cause may be a database node outage, downtime or loss of network connectivity which prevented the requests from being processed. I too faced the same issue. If this error is encountered in a newly created instance, then it may be caused by configuration.
This broker application is known as the and it performs the task of listening for incoming client requests. There was a problem in the listner. All legitimate Oracle experts publish their. A succession of such errors may cause the engine or entity manager to shut down. It might well be that the thin client can't connect to a database that uses cluster technology? DataAccess' the result was: The Global Assembly Cache contains the following assemblies: Oracle.
I am trying to currently connect to a database on my current computer. The error indicates that the database listener received a request but rejected it because the connect descriptor received by the database listener as part of the request specified a service name that the database was not listening for. This service name is usually present in the tnsnames. In my case the error states that the assemly Oracle. Check by doing tnsping and instance name in host machine.
Not the answer you're looking for? In Oracle, the system identifier or is a local identifier of up to eight characters in length that is used to identify a particular database and differentiate it from other databases on the system. The way I solved this issue In Windows 10 1. However, if there's no listener to register with, it can't do this. If the listener isn't running, the database doesn't register itself, and if the listener starts, it doesn't go looking for databases that might register with it. If the connection isn't established or name not found,try the database name,in my case it was 'orcl'. Browse other questions tagged or.
. Why am I getting this error and how can I circumvent it? This may be a temporary condition such as after the listener has started, but before the database instance has registered with the listener. Depending on the database activity, we can identify the root cause. I'm not 100% sure why. When the listener starts up, it doesn't check to see whether the instances it knows about have started up. Normally the exact format of the connect string should be specified in the documentation that comes with the database driver jar file for the specific vendor. Feel free to ask questions on our.
If the above three fails. You are using the thin driver, this works out of the box as it is implemented in pure Java. Connected to: Oracle Database 11g Express Edition Release 11. In other words the first two parameters of your connect string are okay, the problem is with the asdbp2. Restarted the database and it worked like a charm. If the above three fails.
But I have some experience with Java programs that have to access Oracle databases. Would you like to answer one of these instead? Code: An exception occured Type: com. Action: - Wait a moment and try to connect a second time. Code: An exception occured Type: com. Now the next guy can Google it. What Oracle services are running in the Services snap-in? For the later case I would have loved if your code had been complete.
As a result, the database was unable to process the client request and we got the error pasted above. It's probably easier to start with. I can provide a demonstration. When a request is received, the listener processes and forwards that request onto the appropriate Oracle database server using a , which just acts as the connection between the listener and the database server. Your hostname is oracledb racprod02pub.