Topic: Database Administration >> TNS_ADMIN
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| Prashant |
Posted: Jan 19, 2008 08:26:55 AM |
Total Post: 9
Joined: Oct, 2007
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Where is TNS_ADMIN environment set ??Pls guide me through...
Thank You. |
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 Mohammed Taj |
| Posted: Jan 19, 2008 09:10:12 AM |  |
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Total Post: 694
Joined: Jul, 2007
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TNS_ADMIN
On federated servers that run Windows, the Oracle client looks for the tnsnames.ora file in the %ORACLE_HOME%\NETWORK\ADMIN directory, where %ORACLE_HOME% is defined in the db2dj.ini file. If the tnsnames.ora file is not in the %ORACLE_HOME%\NETWORK\ADMIN directory, you need to set the TNS_ADMIN environment variable on the federated server.
On federated servers that run AIX, Linux, and HP-UX, the client looks for the tnsnames.ora file in the /etc directory. If the client does not locate the tnsnames.ora file in the /etc directory, then the client looks for the file in the $ORACLE_HOME/network/admin directory, where $ORACLE_HOME is defined in db2dj.ini file. If client does not find the tnsnames.ora file, you need to set the TNS_ADMIN environment variable. You set the variable in the db2dj.ini file to the path where the tnsnames.ora file is located.
For example, if the tnsnames.ora file is in the /home/oracle directory, you set the variable to:
TNS_ADMIN=/home/oracle
7 On federated servers that run Solaris, the client looks for 7 the tnsnames.ora file in the /var/opt/oracle directory. 7 If the client does not find the tnsnames.ora file in the /var/opt/oracle directory, then the client looks for the file in the $ORACLE_HOME/network/admin directory, where $ORACLE_HOME is defined in db2dj.ini file. If client does not find the tnsnames.ora file, you need to set the TNS_ADMIN environment variable. 7 You set the variable in the db2dj.ini file to the path where the tnsnames.ora file is located.
7 For example, if the tnsnames.ora file is in the /home/oracle directory, you set 7 the variable to:
7 TNS_ADMIN=/home/oracle
In short
1.TNS_ADMIN is use to point network configuration files "tnsnames.ora"
2.In windows enviourment you have to set on COMMAND PROMPT "cmd>"
3. In linux/soloris/aix/unix you have to set on command prompt "$"
REGARDS
Taj
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