You are getting ORA-12560 : TNS:protocol adaptor error becuase you didn’t start the Oracle database. You can start Oracle database like this. From START-> select Oracle Database 11g Express Edition ( 11g or what ever your database type.you can find this from All Programs). Then inside this folder there is a DB icon with green color spot.
You are ORA-12560: TNS: protocol map error because you did not start a new Oracle database. Here’s how you can start an Oracle database. From START->Specific Oracle 11g Database Express Edition (11g or whatever type of repository you have. You can find it under All Programs). Then that folder now has a DB icon with a healthy color grain.
Tnsping is not annoying. returns TNS protocol error: “tns-12560: card error”. Copyright 1997, (c) 2005, Oracle. All rights reserved. TNS-12560: TNS: log map error.
How do I fix the TNS protocol adapter error in Oracle 11g?
How to fix ORA-12560: TNS: protocol adapter error
- Make sure the specific Windows service is up and running.
- Make sure your ORACLE_SID is set to represent the name you are using to create the login request. If one or more are incorrect, an error will be displayed as shown below.
How do I fix error ORA-12560 TNS protocol adapter error?
Successfully set the Oracle System Identifier (SID) to C:>set oracle_sid=ORCL. Then run the Net Start (C:>net oracleserviceORCL) start command. This should fix the ORA-12560 error in this situation.
How do I fix ORA 12560 TNS protocol adapter error?
Set the Oracle System Identifier (SID) to C:>set oracle_sid=ORCL. Then run Net Start require (C:>net start oracleserviceORCL). This should resolve the ORA-12560 error in this situation.
How do I get rid of TNS protocol adapter error?
Set the Oracle System ID (SID) to Oracle_sid=ORCL c:>set. Then run the Net Start Start (c:>net oracleserviceORCL) command. This should fix the ORA-12560 bug in this critical situation.
When does ora-12560 throw a TNS protocol adapter error?
ORA-12560 comes out when connecting to the database and this is not possible. At this point, it just throws a TNS protocol adapter error. The cause itself can be any of the following: a person. The listener is not active. 2. Third party software. 3. Problem with some tnsnames.ora files.

Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.