Ora 12154 Error In Oracle 11g
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to send data. Connection probably disconnected. Action: Reestablish connection. If the error is persistent, turn on tracing and reexecute the operation. ORA-12151: TNS:received ora 12154 error in oracle 12c bad packet type from network layer Cause: Internal error. Action: Not normally ora 12154 error in oracle 10g visible to the user. For further details, turn on tracing and reexecute the operation. If error persists, contact ora-12154 sqlplus Worldwide Customer Support. ORA-12152: TNS:unable to send break message Cause: Unable to send break message. Connection probably disconnected. Action: Reestablish connection. If the error is persistent, turn on tracing
Ora-12154 Tns Listener Does Not Currently
and reexecute the operation. ORA-12153: TNS:not connected Cause: Not currently connected to a remote host. Action: Reestablish connection. ORA-12154: TNS:could not resolve the connect identifier specified Cause: A connection to a database or other service was requested using a connect identifier, and the connect identifier specified could not be resolved into a connect descriptor using one of the naming methods ora-12154 tns could not resolve the connect identifier specified windows 7 configured. For example, if the type of connect identifier used was a net service name then the net service name could not be found in a naming method repository, or the repository could not be located or reached. Action: - If you are using local naming (TNSNAMES.ORA file): - Make sure that "TNSNAMES" is listed as one of the values of the NAMES.DIRECTORY_PATH parameter in the Oracle Net profile (SQLNET.ORA) - Verify that a TNSNAMES.ORA file exists and is in the proper directory and is accessible. - Check that the net service name used as the connect identifier exists in the TNSNAMES.ORA file. - Make sure there are no syntax errors anywhere in the TNSNAMES.ORA file. Look for unmatched parentheses or stray characters. Errors in a TNSNAMES.ORA file may make it unusable. - If you are using directory naming: - Verify that "LDAP" is listed as one of the values of the NAMES.DIRETORY_PATH parameter in the Oracle Net profile (SQLNET.ORA). - Verify that the LDAP directory server is up and that it is accessible. - Ve
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Ora-12154 Oracle 12c
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Error While Trying To Retrieve Text For Error Ora-12154
4, 2010 1:51 PM by rajeysh Go to original post This content has been marked as final. Show 84 replies 45. Re: ORA-12154 error plz help me 458726 Apr 26, 2006 12:50 PM (in https://docs.oracle.com/cd/E18283_01/server.112/e17766/net12150.htm response to 508936) Triple post? Try: C:> sqlplus u2/u2@mat Like Show 0 Likes(0) Actions 46. Re: ORA-12154: TNS:could not resolve the connect identifier specified 509395 Jun 26, 2006 12:37 PM (in response to 452882) You may want to check out this tutorial. http://www.devshed.com/c/a/Oracle/Experience-the-Possibilities-with-Oracle-10g-Express-Edition/ For other tutorials on Oracle check out this link: http://www.angelfire.com/vt2/hodentek/ It's a shame so many people have to spend so much time trouble shooting this ORA-12154 error. https://community.oracle.com/thread/269600?start=45&tstart=0 Oracle guys should come out with a definitive answer. Like Show 0 Likes(0) Actions 47. Re: ORA-12154: TNS:could not resolve the connect identifier specified orafad Jun 26, 2006 2:37 PM (in response to 509395) It's a shame so many people have to spend so much time trouble shooting this ORA-12154 error.Agreed. Oracle guys should come out with a definitive answer.Dont think they can give you one. It depends on your specific installation(s) and configuration. It could be some multi-home issue or Oracle Net domain name related.... To start with, you should check which Oracle home you are using really (registry, PATH etc.), then check that sqlnet.ora and tnsnames.ora "matches". Basically, If error says that tns name cant be found, this is what you should look into. Like Show 0 Likes(0) Actions 48. Re: ora-12154 error 522475 Jul 10, 2006 11:36 PM (in response to 508936) I had this same error over and over. I am not a dba but I have loaded oracle 7, 8 and 9 many times, always with the default orcl instance, and always it worked fine. Now with 10.2.0, I find I am in the same situation as others here. The thing I finally found was that if I did a sqlplus fred/fred@orcl f
specified Posted by Anil Kumar on December 3, 2014 All Posts, Database, Oracle DBA 2 Comments Rate this post This issue is faced in some versions of oracle as ORA-12154: TNS: Could not resolve service http://itbloggertips.com/2014/12/ora-12154-tns-could-not-resolve-the-connect-identifier-specified/ name. Mostly this issue comes in Oracle 10g and Oracle 11g Express edition which i have faced. When you or any application try to connect to an Oracle Service via Oracle Networking SQL*Net, it looks up the http://kb.mit.edu/confluence/pages/viewpage.action?pageId=3908966 connect data for the service. When this lookup fails, Oracle client show an error message ORA-12154. Sometimes this error comes when one database instance tries to connect to another database instance via database link. Root Cause: You ora 12154 try to connect to Oracle but the service name is either missing from the TNSNAMES.ORA file or is incorrectly defined. Resolution: Option-1: You have to make sure that the TNSNAMES.ORA file exists in the correct directory and accessible. %ORACLE_HOME% /network/admin/ Ex: In Oracle 11g express, it is located at below path. C:\oraclexe\app\oracle\product\11.2.0\server\network\ADMIN Option-2: You have to make sure that the service name that you are trying to connect is included in the TNSNAMES.ORA ora 12154 error file and that it is correctly defined. Option-3: Make sure that TNSNAMES is listed as one of the values of the names.directory_path parameter in the sqlnet.ora Oracle Net profile. Option-4: You have to make sure that the syntax of TNSNAMES.ORA file is correct. For example, if there are unmatched brackets in the file (ie: open bracket without the corresponding close bracket), the file will be rendered unusable. XE = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = TESTING.COM)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE) ) ) If you are still facing the same issue, please write to us in comment section. We will try to help you. Get Free Blogging Tips & Technology updates in your Email !!! Subscribe via RSS feed 0 Related PostsResolved ORA-12528: TNS:listener: all appropriate instances are blocking new connections errorHow to Multiplex Control Files in OracleFixed ORA-12518: TNS:listener could not hand off client connectionOracle DBA TipsFixed - ORA-12560: TNS: protocol adapter errorFixed - ORA-00844: Parameter not taking MEMORY_TARGET into accountHow to change the SID of an Oracle XE instanceHow to Enable/Disable Archive Log Mode in Oracle 10g/11gHow to Multiplex Redo Log Files in OracleFixed - ORA-01033: ORACLE initialization or shutdown in progressFixed - ORA-19809: limit exceeded for recovery filesFixed: ORA-01722: invalid numberFixed: Oracle not started-ORA-16038, ORA-19809, ORA-00312 errorORA-00600: internal er
view Printable view Export to Adobe Acrobat (PDF) Export to Microsoft Word Email this page Other pagesHome page Dashboard News Recent updates RSS feed builder Index Site map Labels Attachments index People Directory AccountLog in History History "TNS could not resolve connect identifier specified", "...could not resolve service name" I am trying to connect to the Data Warehouse or another database and am getting one of the following error messages: ORA-12154: TNS:could not resolve the connect identifier specified ORA-12154: TNS:could not resolve service name Context These error messages indicate that a connection to a database was requested using a connect identifier (such as "warehouse"), and the Oracle client could not resolve the specified connect identifier into a connect descriptor using one of the naming methods configured in sqlnet.ora. The connect descriptor will include server and port information. Note: In previous versions of Oracle, the Oracle client relied on the TNSNAMES.ORA file to resolve the connect identifier. MIT currently uses the Oracle Internet Directory (OID) server, and all databases previously listed in TNSNAMES.ORA are now available on the OID server. Connection information for the OID server (LDAP server), is stored in ldap.ora. Solution One: Off campus users will need to first connect to the MIT VPN. See: Install and Run the Cisco AnyConnect Secure Mobility VPN Client If you're off campus, and connecting to the VPN is not a viable option, see: "TNS could not resolve the connect identifier specified" error, user not on main MIT campus, VPN not a viable option Two: Verify Oracle configuration files If you're connecting to a 'well-known' MIT database, such as the Data Warehouse, you should be using MIT's Oracle Internet Directory (OID) server. This server acts as an online tnsnames.ora file. To verify your OID configuration: If there is a chance that there is more than one Oracle installation on the machine, you'll need to look in the Path variable to ascertain which Oracle installation appears first in the Path. This