Orical Error 12545
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the node specified. For example: when the listener has not been started on the node, if the node address has been specified incorrectly, ora-12545 connect failed because target host or object does not exist sqlplus or a firewall blocks access. How to fix it[edit] This message occurs
Ora-12545 Sqlplus
when the listener on the remote node cannot be contacted. Did you add the host name and IP in ora-12545 network transport your DNS server? You can try tracing the path or the route a connection is taking from the client to the server. If it encounters an error, then it returns ora 12545 connect failed toad the error stack which gives us more information when compared to an cryptic one line error. Execute the following: trcroute host_name This will help you find the problem and fix it. The problem may fall into one of the following areas: Check TNSNAMES.ORA: The TNSNAMES.ORA may contain a wrong address. Check the host and port have been specified correctly. Check
Ora-12454: Connect Failed Because Target Host Or Object Does Not Exist
the details against the LISTENER.ORA file. Check the remote node: Check if the listener has been started on the remote node. Check the status with the STATUS command of the listener control utility (lsnrctl): lsnrctl lsnrctl> status listener_name listener_name is the name of the listener defined in the listener.ora file. If you have not changed the listener name, then it would be called LISTENER. If the listener has not been started, start it with the command: lsnrctl> start listener_name You can check if the fix worked by executing tnsping. It should return an "OK" message if the TNSPING has been successful. Retrieved from "http://www.orafaq.com/wiki/index.php?title=ORA-12545&oldid=9517" Category: Errors Navigation menu Views Page Discussion Edit History Personal tools Log in / create account Site Navigation Wiki Home Forum Home Blogger Home Site highlights Blog Aggregator FAQ's Mailing Lists Usenet News RSS Feeds Wiki Navigation Categories Recent changes Random page Help Search Tools What links here Related changes Special pages Printable version Permanent link Page information This page was last modified on 23 June 2008, at 10:33. Privacy policy About Oracle Wiki Disclaimers
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ora-12545 connect failed because target host or object does not exist (dbd error ociserverattach) TNS-12545: Connect Failed Because Target Host or Object Does Not Exist tips ExpertOra-12545 Toad
Oracle Database Tips by Burleson Consulting December 6, 2015 Question: When I try to connect to Oracle in SQL*Plus I get the following error message: TNS-12545: Connect failed because http://www.orafaq.com/wiki/ORA-12545 target host or object does not exist What is the cause of the TNS-12545 error? Answer: The oerr utility shows this for the TNS-12545 error: See here, on how to use oerr to look up error messages. TNS-12545: Connect failed because target host or object does not existCause: The address specified is not valid, or the program being connected http://www.dba-oracle.com/t_tns_12545_connect_failed_because_target_host_or_object_does_not_exist.htm to does not exist. Action: Ensure the ADDRESS parameters have been entered correctly; the most likely incorrect parameter is the node name. Ensure that the executable for the server exists (perhaps "oracle" is missing.) If the protocol is TCP/IP, edit the TNSNAMES.ORA file to change the host name to a numeric IP address and try again. This TNS-12545 error is almost always an issue in your tnsnames.ora file, specifically your ADDRESS parameter, often a bad host name (node name). As a test for the DNS, temporarily replace the host name with the IP address, see here for details. Please go through these steps to diagnose the connectivity issue. Get the Complete Oracle SQL Tuning Information The landmark book "Advanced Oracle SQL Tuning The Definitive Reference" is filled with valuable information on Oracle SQL Tuning. This book includes scripts and tools to hypercharge Oracle 11g performance and you can buy it for 30% off directly from the publisher. Burleson is the American Team Note: This Oracle documentation was cr
(13) Performance (2) SecureFiles and Large Objects (1) Security (1) Utilities (1) OCI/OCCI (1) Internals (1) Grid Control (19) TimesTen (14) Linux (9) http://www.oracledistilled.com/oracle-database/oracle-net/ora-12545-connect-failed-because-target-host-or-object-does-not-exist/ Java (13) JDBC (8) JavaFX (4) Windows (5) VirtualBox (4) Grid Infrastructure http://searchoracle.techtarget.com/answer/Solving-error-ORA-12545 (4) NetBeans (2) Berkeley DB (2) JDeveloper (2) Golden Gate (2) Oracle Fusion Middleware (1) Weblogic (1) Video (1) MySQL (1) Cloud Control (1) announcements (1) ORA-12545: Connect failed because target host or object does not exist by Eric Jenkinson on July 14, 2010 Categories: connect failed Errors,Network Tagged: Error, ORA-12545, trace Connectivity errors are common questions on Oracle related forums and in many cases they are highly misunderstood by the poster of the questions and some responders. This aim of this document is to show a method for diagnosis and resolution to a scenario in which an ORA-12545 is raised during the connection to connect failed because a database. Problem You attempt a connection to database through SQL*Plus and you receive the following error. [oracle@ora2 ]$ sqlplus /nolog SQL*Plus: Release 11.2.0.1.0 Production on Wed Jun 30 10:29:27 2010 Copyright (c) 1982, 2009, Oracle. All rights reserved. SQL> connect hr@proddb Enter password: ERROR: ORA-12545: Connect failed because target host or object does not exist SQL> Diagnosis process If you are unfamiliar with the error use the oerr utility to get more information on the error. [oracle@ora2 ]$ oerr ora 12545 12545, 00000, "Connect failed because target host or object does not exist" // *Cause: The address specified is not valid, or the program being // connected to does not exist. // *Action: Ensure the ADDRESS parameters have been entered correctly; the // most likely incorrect parameter is the node name. Ensure that the // executable for the server exists (perhaps "oracle" is missing.) // If the protocol is TCP/IP, edit the TNSNAMES.ORA file to change the // host name to a numeric IP address and try again. [
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