Solved

error ora-12560 TNS protocol error

Posted on 2011-03-17
3
741 Views
Last Modified: 2012-05-11
hi guys, i installed oracle 11gr2 on wondow 7, but am not able to login getting error error ora-12560 TNS protocol error
0
Comment
Question by:nirvairghuman
3 Comments
 
LVL 2

Assisted Solution

by:choukssa
choukssa earned 62 total points
ID: 35156252

Some things to consider--

1. Do you have the proper client ?
2. Is listener running?
3. Is ORACLE_SID set properly?

--choukssa
0
 

Author Comment

by:nirvairghuman
ID: 35158263
Yeah, i have set ORACLE_SID and my listener is running, but i installed on my local pc.
0
 
LVL 5

Accepted Solution

by:
anand_20703 earned 63 total points
ID: 35189095
open command prompt
tnsping ORACLE_SID ( replace the correct oracle_sid name here)
result ? ( will give u clue what is the cause ?)
.
another check
set ORACLE_SID=name of oracle_sid
sqlplus /nolog
conn / as sysdba

result ? ( if successful, then the problem is with your listner and it's setup,availability....)
(if not successful, problem is with your database avialability, setup...)
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
Stay Alert! 13 62
Identify records which do NOT qualify for a view 9 29
Oracle 12c patching 1 37
sql query 5 52
Article by: Swadhin
From the Oracle SQL Reference (http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/queries006.htm) we are told that a join is a query that combines rows from two or more tables, views, or materialized views. This article provides a glimps…
How to Create User-Defined Aggregates in Oracle Before we begin creating these things, what are user-defined aggregates?  They are a feature introduced in Oracle 9i that allows a developer to create his or her own functions like "SUM", "AVG", and…
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.
This video shows how to copy an entire tablespace from one database to another database using Transportable Tablespace functionality.

758 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now