Database Error Code 12154
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while creating a linked server to Oracle ★★★★★★★★★★★★★★★ SnehadeepJune 30, 201028 0 0 0 This is one of the most common errors while oracle database error 12154 creating linked server to Oracle database. Today I will discuss the oracle database error 12154 ora-12154 reason for this error and possible resolutions.
Full error message: OLE DB provider "MSDAORA" for tableau oracle database error 12154 linked server "LINKED_ORA" returned message "ORA-12154: TNS:could not resolve the connect identifier specified". Msg 7303, Level 16, State 1, Line 1 Cannot initialize the data sourceDatabase Vendor Code 12154
object of OLE DB provider "MSDAORA" for linked server "LINKED_ORA".
First of all make sure you have reviewed the following Microsoft KB article that has a lot of good information on troubleshooting Oracle linked server issues. How to set up and troubleshoot a linked server to an Oracle database in SQL Server http://support.microsoft.com/kb/280106 Also database vendor code 12154 failed to open the connection make sure you have installed Oracle Client on the SQL server. If the SQL server is 64 bit then we need to install 64 bit Oracle provider. You can also create linked server using Oracle ODBC driver together with Microsoft OLE DB provider for ODBC. Once again on a 64 bit SQL server you need to install the 64-Bit OLEDB Provider for ODBC (MSDASQL) and 64 bit Oracle ODBC drivers. However 64-Bit OLEDB Provider for ODBC (MSDASQL) is already there in Windows Vista/Windows Server 2008 and later OS. This particular error message is a very general error message and can happen for quite a number of reasons. For general understanding of the error, you can review oracle documentation like this http://ora-12154.ora-code.com/ In SQL Server Linked Server, it could indicate a few things (not limited to)– 1. SQL Server (and oracle net libraries) is not able to get the TNS alias from tnsnames.ora file. 2. Something is wrong with the way the alias isSQL 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 Scripts Ion Excel-DB Don Burleson Blog
error 12154 received logging on to the standby 11g ORA-12154: TNS could not resolve serviceError 12154 Received Logging On To The Standby Rac
name tips Question: I need help with this error: ORA-12154: TNS: could not resolve service name.Answer: The ORA-12154 is a
Error 12154 Connecting To Standby Host
very common error, always related to your local copy of the tnsnames.ora file, your listener configuration and your database name aliases. Make sure that your listener is listening for the same service name that https://blogs.msdn.microsoft.com/dataaccesstechnologies/2010/06/30/ora-12154-tns-could-not-resolve-the-connect-identifier-specified-error-while-creating-a-linked-server-to-oracle/ 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 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 http://www.dba-oracle.com/t_ora_12154_tns_resolve_service_name.htm 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 could not be found in a naming method repository, or the repository could not be located or reached. Action: The following actions may be appropriate: 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 sqlnet.ora Oracle Net profile. Verify that a tnsnames.ora file exists and is in the proper directory and
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies http://stackoverflow.com/questions/206055/oracle-ora-12154-tns-could-not-resolve-service-name-error of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: error 12154 Sign up Oracle ORA-12154: TNS: Could not resolve service name Error? up vote 11 down vote favorite 5 I am a SQL Server user . I am on a project that is using oracle (which I rarely use) I need to create an ODBC connection so I can access the some data via MS Access I have a application on my machine called oracle database error oraHome90. It seems to allow a configuration of something called a listener in a “net configuration utility”, I think that a “Local Net Service Name Configuration” needs to also be done. The IT support gave me this information to set up the ODBC connection . I have tried every combination that I can think of. I can get past a test that successfully passes a test to “login“ to the oracle server database. When I try to create the ODBC connection I get the following error: ORA-12154: TNS: Could not resolve service name. Assuming that I want to start from scratch and the following information is supposed to allow for me to connect to the database….. Any suggestions or comment ? Note: ultimately the project will have a website .ASP page query the data, but I have to first prove that I can see the data using the ODBC connection via MS Access Service name: SERVICENAME HOST = HOST.XYZi.com User Id: MYUSERID Password: MYPASSWORD ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 'Oracle Connection Dim ocst Dim oconn ocst = "Provider=OraOLEDB.Oracle;" & _ "Data Source=DATASOURCE;" & _ "User ID=CHIJXL;" & _ "Password=password;"