Listener Refused The Connection With The Following Error 12505
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Ora 12505 Error In Sql Developer
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Ora 12505 Error In Oracle 12c
does not currently know of SID given in connect descriptor up vote 81 down vote favorite 22 I have installed Oracle 11g Express Edition Release 2 in my windows 7 64 bit OS and tried to execute JDBC program, then I got the following error: java.sql.SQLException: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:412) at oracle.jdbc.driver.PhysicalConnection.
connect to the appropriate Oracle database, we'll need to expound a bit on how Oracle behaves and, therefore, what is causing this issue ora-12505 jdbc thin client in the first place. SIDs vs SERVICE_NAMES It is important to listener refused the connection with the following error ora-12519 understand the (slight) difference between what Oracle defines as a SID compared to a SERVICE_NAME, as we'll use
Listener Refused The Connection With The Following Error Ora-12528
this information to create a proper connection string later on. In Oracle, the system identifier (or SID) is a local identifier of up to eight characters in length http://stackoverflow.com/questions/18192521/ora-12505-tnslistener-does-not-currently-know-of-sid-given-in-connect-descript that is used to identify a particular database and differentiate it from other databases on the system. Often the SID is the prefix word or DB_UNIQUE_NAME that precedes the DB_DOMAIN. For example, the SID of our bookstore database, as seen in in the full global database name of bookstore.company.com. SERVICE_NAMES, on the other hand, represent the names https://chartio.com/resources/tutorials/how-to-fix-ora-12505-tns-listener-does-not-currently-know-of-sid-given-in-connect-descriptor by which database instances can be connected to. A SERVICE_NAME will typically follow the format of the SID followed by the database domain, like so: DB_UNIQUE_NAME.DB_DOMAIN The TNS Listener When a client is attempting to connect to an Oracle database, rather than connecting to the database directly, there is a broker service that intervenes and handles the connection request for the client. This broker application is known as the listener and it performs the task of listening for incoming client requests. When a request is received, the listener processes and forwards that request onto the appropriate Oracle database server using a service handler, which just acts as the connection between the listener and the database server. TNS Names and Configuration When connecting to an Oracle database, typically your database server will have tnsnames.ora, which is a configuration file that informs the server about NET_SERVICE_NAMES which are valid database connections. By default, this file is located at ORACLE_HOME/network/admin. For example, a NET_SERVICE_NAME descriptor in tnsnames.ora may be formatted like this: myD
Certification Databases Caching Books Engineering Languages Frameworks Products This Site Careers Other all forums Forum: JDBC and Relational https://coderanch.com/t/585051/JDBC/databases/Listener-refused-connection-error-ORA Databases Listener refused the connection with the following error: ORA-12505 lalit khera Ranch Hand Posts: 39 posted 4 years ago hi i am getting the error as-"Status: Failure - Test Failed: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor" when listener refused instead of xe as sid, i write SIVA it works successfully. please reply. its urgent listener-error.PNG listener error lsnrctl.PNG attach Sumit Patil Ranch Hand Posts: 296 I like... posted 4 years ago lalit khera wrote: please reply. its urgent Please EaseUp Thanks & Regards, Sumeet SCJP 1.4, SCWCD 5, LinkedIn Profile Sumit listener refused the Patil Ranch Hand Posts: 296 I like... posted 4 years ago Check your TNSNAMES.ora file, if it contains an entry having service_name as "xe" Thanks & Regards, Sumeet SCJP 1.4, SCWCD 5, LinkedIn Profile lalit khera Ranch Hand Posts: 39 posted 4 years ago Sumit Patil wrote:Check your TNSNAMES.ora file, if it contains an entry having service_name as "xe" hi i am new bee in oracle. please tell me where to find that file and if find what next thing i need to do. lalit khera Ranch Hand Posts: 39 posted 4 years ago Sumit Patil wrote:Check your TNSNAMES.ora file, if it contains an entry having service_name as "xe" hey thanks sumit i found the file tnsnames.ora and the content of that file is as follows # tnsnames.ora Network Configuration File: G:\app\windows7\product\11.2.0\dbhome_1\network\admin\tnsnames.ora # Generated by Oracle configuration tools. LISTENER_SIVU = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521)) LISTENER_ORCL = (ADDRESS = (PROTOCOL = TCP)(HOST