Ora 12154 Tns Could Not Resolve Service Name Error
Contents |
while creating a linked server to Oracle ★★★★★★★★★★★★★★★ SnehadeepJune 30, 201028 Share 0 0 This is one of the most common errors while creating linked server to Oracle database. Today I will discuss the reason for this error and possible resolutions.
Full error ora-12154 tns could not resolve the connect identifier specified windows 7 message: OLE DB provider "MSDAORA" for linked server "LINKED_ORA" returned message "ORA-12154: TNS:could not tns could not resolve the connect identifier specified sqlplus resolve the connect identifier specified". Msg 7303, Level 16, State 1, Line 1 Cannot initialize the data source object of OLE ora-12154 tns could not resolve service name oracle 11g 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 setAsp.net Ora-12154: Tns:could Not Resolve The Connect Identifier Specified
up and troubleshoot a linked server to an Oracle database in SQL Server
http://support.microsoft.com/kb/280106 Also 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 tns could not resolve the connect identifier specified oracle 10g 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 is created in the tnsnames.ora file (incorrect syntax) 3. TNS alias could not be resolved into a connect descriptor Below is a list of things that you can try to resolve this issue. 1. Verify that the tnsnames.ora file has the alias and the service name that the customer is using. TNS entry for the Oracle database =========================== OracleDB_Dev = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = server01.mydomain.com)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = OracleDB) (SERVER = DEDICATED) ) ) In the above tnsnames.ora file Alias = OracleDB_Dev Service Name: OracleDB (Actual Orhere for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of ora-12154 tns listener does not currently this site About Us Learn more about Stack Overflow the company Business
Ora-12154 Tns Listener Does Not Currently Know Of Service Requested In Connect Descriptor
Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask
Tns Could Not Resolve The Connect Identifier Specified Odbc
Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up 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/ 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 oraHome90. It http://stackoverflow.com/questions/206055/oracle-ora-12154-tns-could-not-resolve-service-name-error 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;" set oconn = CreateObject("AD
resolve the connect identifier specified"? Article: 00951 Last Reviewed: 7th September 2006 Revision: 1 This error indicates that Oracle is unable to http://www.easysoft.com/support/kb/kb00951.html locate the service name specified in your Easysoft ODBC-Oracle Driver ODBC data source. You need to check 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 could not be my_database: my_database = (DESCRIPTION = (ADDRESS = (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 could not resolve name or IP address of the Oracle database server, port is the Oracle 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 Ab