Top "Tns" questions

An proprietary Oracle networking technology that provides connectivity to Oracle databases

Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

I had my database working for over a year since yesterday. Out of sudden, I am no longer able to …

Read More
oracle tns
Oracle ORA-12154 error on local IIS, but not with Visual Studio Development Server

I've got an ASP.NET application that can connect to Oracle when it's started by Visual Studio Development Server, but …

Read More
asp.net oracle iis tns
Oracle TNS: No Listener error while tnsping for my service

I just Installed Oracle 11g on windows 7 64bit, and when I tried to ping using tnsping I faced this error …

Read More
oracle oracle11g tns
What is the difference between "ORA-12571: TNS packet writer failure" and "ORA-03135: connection lost contact"?

I am working in an environment where we get production issues from time to time related to Oracle connections. We …

Read More
oracle odp.net tns ora-12571
oracle ASP.NET : TNS issue

I am trying to connect to my DB oracle with ASP.NET/C#. Here is my code: OracleConnection connection = new …

Read More
c# asp.net oracle11g tns
Connect to Oracle database without using TNS Listener

Just out of curiosity, a few days ago we had a discussion about whether there is a way to connect …

Read More
oracle listener tns
Problems resolving Oracle SID via LDAP/OID lookup with Thin JDBC Client

We are using OID/LDAP lookup for our connection configuration. Both the TNS_ADMIN environment variable and the oracle.net.…

Read More
oracle jdbc ldap oid tns
Connection to Oracle via TNS is not working

I have a Spring Boot app that works smoothly when it connects to an Oracle instance in the classic way: …

Read More
oracle spring-boot tnsnames tns
ODBC Oracle Connection error from MS Access

I currently support an MS Access database that has linked connections using the Microsoft ODBC Driver for Oracle. I can …

Read More
oracle ms-access odbc tns
ORA-12541 TNS :no listener on 1 specific remote database, but not on others

Some context: I'm setting up an environment to run some Ruby code our Lead wrote to connect to some remote …

Read More
oracle oracle-sqldeveloper sqlplus tnsnames tns