Ora 12154 Could Not Resolve Service Name Error
Contents |
TNS:received bad packet type from network layer Cause: Internal error. Action: Not normally visible to the user. For further details, turn on tracing and reexecute the operation. If error persists, contact Worldwide Customer Support. ORA-12152: TNS:unable to send break message Cause: ora-12154 tns could not resolve the connect identifier specified windows 7 Unable to send break message. Connection probably disconnected. Action: Reestablish connection. If the error is
Ora-12154 Tns Could Not Resolve Service Name Oracle 11g
persistent, turn on tracing and reexecute the operation. ORA-12153: TNS:not connected Cause: Not currently connected to a remote host. Action: Reestablish connection.
Tns Could Not Resolve The Connect Identifier Specified Sqlplus
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
Tns Could Not Resolve The Connect Identifier Specified Oracle 10g
one of the naming methods 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) asp.net ora-12154: tns:could not resolve the connect identifier specified - 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. - Verify that the net service name or database name used as the connect identifier is configured in the directory. - Verify that the default context being used is correct by specifying a fully qualified net service name or a full LDAP DN as the connect identifier - If you are using easy connect naming: - Verify that "EZCONNECT" is listed as one of the values of the NAMES.DIRETORY_PATH parameter in the Oracle Net profile (SQLNET.ORA). - Make sure the host, port and service name specified are correct. - Try enclosing the connect identifier in quote marks. See the Oracle Net Services Administrators Guide or the Oracle operating system specific guide for more information on naming. OR
SQL TuningSecurityOracle UNIXOracle LinuxMonitoringRemote supportRemote plansRemote servicesApplication Server ApplicationsOracle FormsOracle PortalApp UpgradesSQL ServerOracle ConceptsSoftware SupportRemote Support Development Implementation Consulting StaffConsulting PricesHelp Wanted! Oracle PostersOracle Books Oracle ora-12154 tns listener does not currently Scripts Ion Excel-DB Don Burleson Blog
ora-12154 tns listener does not currently know of service requested in connect descriptor ORA-12154: TNS could not resolve service name tips Question: error while trying to retrieve text for error ora-12154 I need help with this error: ORA-12154: TNS: could not resolve service name.Answer: The ORA-12154 is a very common error, always related to your local copy of the https://docs.oracle.com/cd/B19306_01/server.102/b14219/net12150.htm tnsnames.ora file, your listener configuration and your database name aliases. Make sure that your listener is listening for the same service name that you are using. Your service name might have an alias, so check for global (world) entries and local entries. Check: $ORACLE_HOME/network/admin/tnsnames.ora Check your global_name setting with this SQL: select * from global_name; The query http://www.dba-oracle.com/t_ora_12154_tns_resolve_service_name.htm value should match your init.ora parms for db_name and db_domain, You can change the global_name with an ALTER DATABASE command, as follows: alter database rename global_name to xxx; Also see these notes on configuring your tnsnames.ora file and troubleshooting network errors. Rampant author Steve Callan notes this on the ORA-12154 error: "One of the most common errors related to improper configuration is the "ORA-12154: TNS: could not resolve service name" error. It is not uncommon for new users of Oracle to spend hours upon hours trying to figure out what their mistake is when ORA-12154 appears." The oerr utility notes this on the ORA-12154 error:: $oerr ora 12154 ORA-12154: TNS:could not resolve the connect identifier specifiedCause: 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 configured. For example, if the type of connect identifier used was a net service name then the net service name couldresolve the connect identifier specified"? Article: 00951 Last Reviewed: 7th September 2006 Revision: 1 This error indicates that Oracle is unable to locate the service name http://www.easysoft.com/support/kb/kb00951.html specified in your Easysoft ODBC-Oracle Driver ODBC data source. You need to check https://www.tekstream.com/resources/ora-12154-tns-could-not-resolve-service-name/ the Database attribute value in the data source.If you are using the standard Oracle client, the Database attribute value must specify a valid service name defined in tnsnames.ora. For example, for the following tnsnames.ora entry, the Database attribute value needs to be my_database: my_database = (DESCRIPTION = (ADDRESS = could not (PROTOCOL = TCP)(HOST = my_host)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = my_database) ) ) If you are using the Instant Client without a tnsnames.ora file, the Database attribute value needs to be a SQL connect URL rather than a service name: //host:port/service_name where host is the host name or IP address of the Oracle database server, port is the Oracle could not resolve listener port and service_name is the service name. For example: //my_host:1521/my_database If you want to use the Instant Client with a tnsnames.ora file, the Database attribute value must specify a tnsnames.ora service name and you need to set and export the TNS_ADMIN environment variable. Set TNS_ADMIN to specify the location of the tnsnames.ora file. For example: TNS_ADMIN = /home/oracle/network/admin export TNS_ADMIN Applies To Products Easysoft ODBC-Oracle Driver Knowledge Base Feedback * Did this content help you? Yes No Maybe * Please select one option based on your first choice: I'm very satisfied I think it will help, but I haven't tried it yet It is helpful, but I need more information It is helpful, but hard to understand Seemed relevant in search results, but didn't help me The information is incorrect The page contains one or more broken links Suggest new content or let us know how we can improve this content: (* Required Fields) About Easysoft Contact Us About Us Clients Upgrade Offer Blog Careers Products ODBC Drivers JDBC Drivers Bridges and Gateways In Development Services Consultancy Training Custom Development Licensing Product Licenses P
Digital Records Management Enterprise Content Management Strategy Digital Asset Management Oracle Imaging & Process Management Web Content Management Oracle WebCenter Portal Enterprise Portal Support Enterprise Portal Strategy Enterprise Portal Upgrade Oracle WebCenter Sites Sourcing Staffing & Recruiting Recruiting Managed Services Candidate Registration Technical Focus Client Opportunities Support Solutions Training Legacy to Oracle WebCenter Oracle Documents Cloud Service Next Generation AP Automation & Dynamic Discounting Oracle WebCenter Contract Lifecycle Management (CLM) Search ORA-12154: TNS could not resolve service nameYou are here: Home / Resources / ORA-12154: TNS could not resolve service name The Oracle message known as “ora-12154” may be the most common error experienced by Oracle users. Luckily, the frustration of so many previous users has prompted some fairly straightforward solutions to the issue. The Problem When you receive this error, it means that the Oracle client has failed to connect with the listener on the desired server. In Oracle’s own words: “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 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.” There can be many possible causes for this problem, which is why it can be tricky to solve. Users may have to test more than one method before identifying the source of the ORA-12154. The target server could have temporarily gone down, which is likely if the issue is occurring across multiple PCs after attempting to access