Links to DB, auditor and 2 tnsnames.ora

Hello

I would like to have some information about the following situation:

I installed on server1 Oracle 11.2 in the patches dbhome1 Group 3 (first place) and in the Group of hotfixes dbhome2 4 (Group of patches).

Now, the listener is always that of the patches dbhome1 Group 3 (where the tnsnames.ora y/network/admin).

I instance1 created with dbca patches dbhome2 Group 4. Instance1 has a link to db dblink1 to server2.

Now the strange thing, dblink1 cannot connect to the host.

The tnsnames.ora in dbhome1 contains the correct entry (tnsping with variables env dbhome1 works flawlessly). But if I do a tnsping with dbhome2 env variables, then it does not work (in fact the tnsnames.ora to dbhome2 has a WRONG server name in the entry). After I corrected the tnsnames.ora to dbhome2, all was FINE.

My question, I guess the listener takes the tnsnames.ora to dbhome1, why a dblink to an instance of dbhome2 not use this file, but rather the tnsnames.ora to dbhome2 (the listener runs on dbhome1)? A feedback?

Thank you

Martin

The listener has nothing to do with the tnsnames.ora. The important thing is the value of the TNS_ADMIN environment variable except that the value of ORACLE_HOME for the process in question. If TNS_ADMIN is undefined, instances that are running 2 House will pick up the tnsnames of House 2.

Tags: Database

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  • Creating a service; What must be included in tnsnames.ora and JDBC url?

    DB version: 11.2.0.2
    Operating system platform: Solaris 10

    We have a 2 RAC node.
    DB name   = mbsprd
Instance1  = mbsprd1
Instance2  = mbsprd2
    I want 1 Instance (mbsprd1) to use for our OLTP and Instance 2 (mbsprd2) application to use for another nature DSS request.

    According to the syntax
    srvctl add service -d <dbname> -s <ServiceName> -r <Preferred Instance> -a <Available Instance>
    I create 2 services

    -Creation of a service called OLTP
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    -Creation of a service called DSS
    srvctl add service -d mbsprd -s DSS  -r mbsprd2 -a mbsprd1
    -Start services
    srvctl start service -d mbsprd -s OLTP

srvctl start service -d mbsprd -s DSS
    I guess the above steps are sufficient to set up a service on the side server.

    I would like to know what needs to be done on the client side.

    Currently the file tnsnames.ora and JDBC url used by our clients are listed below. What needs to be added to the file URL and jdbc tnsnames.ora to start to use the services configured above?
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mbsprd =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (COMMUNITY = tcp.world)
        (PROTOCOL = TCP)(Host = p148149-scan.tpam.net) (Port = 36964))
    )
    (CONNECT_DATA =
      (SERVER       = DEDICATED)
      (SERVICE_NAME = mbsprd)
      (FAILOVER_MODE=(TYPE=SELECT)(METHOD=BASIC))
    )
  )

-- TNS entry based on local listener 
-- Instance 1
mbsprd1 =
(DESCRIPTION =
   (ADDRESS_LIST =
   (ADDRESS =(PROTOCOL = TCP)(HOST = hsolarp148-vip)(PORT = 36973))
   )
   (CONNECT_DATA =
         (SERVICE_NAME = mbsprd)
         (INSTANCE_NAME = mbsprd1)
       )
 )

-- Instance 2
-- TNS entry based on local listener 
mbsprd2 =
(DESCRIPTION =
   (ADDRESS_LIST =
   (ADDRESS =(PROTOCOL = TCP)(HOST = hsolarp149-vip)(PORT = 36973))
   )
   (CONNECT_DATA =
         (SERVICE_NAME = mbsprd)
         (INSTANCE_NAME = mbsprd2)
       )
 )
    Entry for RAC JDBC
    jdbc:oracle:thin:@p148149-scan.tpam.net:36964:mbsprd
    -Another version used by some clients, because the above had "some problems".
    jdbc:oracle:thin:@(DESCRIPTION=(LOAD_BALANCE=on)(ADDRESS=(PROTOCOL=TCP)(HOST=p148149-scan.tpam.net) (PORT=36964))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=mbsprd)(FAILOVER_MODE =(TYPE = SELECT)(METHOD = BASIC)(RETRIES = 180)(DELAY = 10))))
    OLTP =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = p148149-scan.tpam.net)(PORT = your_port_number))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = OLTP)
    )
  )
DSS =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = p148149-scan.tpam.net)(PORT = your_port_number))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = DSS)
    )
  )

    Entry for RAC JDBC

    JDBC:Oracle:thin:@p148149-scan.tpam.NET:36964:SERVICE_NAME

    JDBC:Oracle:thin:@new_tns_entry_description (if you do not want to connect to the database with particular service)

    Try this and let us know about problems,

  • Earphone &amp; tnsnames.ora

    I'm confused verymuch is a client/server configuration.
    I need help you popular.
    I posted the two clients/server listener & tnsnames.ora,.
    that I set up.

    Server listener.ora (test1)

    SID_LIST_LISTENER =
    *(SID_LIST =*)
    *(SID_DESC =*)
    * (SID_NAME = PLSExtProc) *.
    * (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)*
    * (= Extproc program) *.
    *)*
    *(SID_DESC =*)
    * (GLOBAL_DBNAME = TEST1) *.
    * (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)*
    * (SID_NAME = TEST1) *.
    *)*
    *)*

    TEST1 =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop029.tvsil.com)(PORT = 1521)) *.
    *)*

    SID_LIST_ORCL =
    *(SID_LIST =*)
    *(SID_DESC =*)
    * (GLOBAL_DBNAME = TEST1) *.
    * (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)*
    * (SID_NAME = TEST1) *.
    *)*
    *)*

    LISTENER =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC)) *.
    *)*

    ORCL =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop041.tvsil.com)(PORT = 1522)) *.
    *)*

    Server tnsnames.ora

    TEST1 =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop029.tvsil.com)(PORT = 1521)) *.
    *(CONNECT_DATA =*)
    * (SERVER = DEDICATED) *.
    * (SERVICE_NAME = TEST1) *.
    *)*
    *)*

    ORCL =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop041.tvsil.com)(PORT = 1522)) *.
    *(CONNECT_DATA =*)
    * (Service_name = ORCL). *
    *)*
    *)*

    EXTPROC_CONNECTION_DATA =
    *(DESCRIPTION =*)
    *(ADDRESS_LIST =*)
    * (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)) *.
    *)*
    *(CONNECT_DATA =*)
    * (SID = PLSExtProc) *.
    * (PRESENTATION = RO) *.
    *)*
    *)*

    customer listener.ora (orcl)

    SID_LIST_LISTENER =
    *(SID_LIST =*)
    *(SID_DESC =*)
    * (SID_NAME = PLSExtProc) *.
    * (ORACLE_HOME = E:\Sample1oracle\product\10.2.0\db_2)*
    * (= Extproc program) *.
    *)*

    *)*

    LISTENER =
    *(DESCRIPTION_LIST =*)
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop041.tvsil.com)(PORT = 1523)) *.
    * (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC)) *.
    *)*
    *)*

    ORCL =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop041.tvsil.com)(PORT = 1522)) *.
    *)*

    TEST1 =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop029.tvsil.com)(PORT = 1521)) *.
    *)*

    Customer tnsnames.ora

    LISTENER_TEST1 =
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop029.tvsil.com)(PORT = 1521)) *.


    TEST1 =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop029.tvsil.com)(PORT = 1521)) *.
    *(CONNECT_DATA =*)
    * (SERVER = DEDICATED) *.
    * (SERVICE_NAME = TEST1) *.
    *)*
    *)*

    ORCL =
    *(DESCRIPTION =*)
    *(ADDRESS_LIST =*)
    (* (ADDRESS = (PROTOCOL = TCP)(HOST = desktop041.tvsil.com) (PORT = 1522))) *.
    *(CONNECT_DATA =*)
    * (Service_name = ORCL). *
    *)*
    *)*

    EXTPROC_CONNECTION_DATA =
    *(DESCRIPTION =*)
    *(ADDRESS_LIST =*)
    * (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC2)) *.
    *)*
    *(CONNECT_DATA =*)
    * (SID = PLSExtProc) *.
    * (PRESENTATION = RO) *.
    *)*
    *)*

    user11345217 wrote:
    I'm confused verymuch is a client/server configuration.
    I need help you popular.
    I posted the two clients/Server Listener and tnsnames .ora,
    that I set up.

    Server listener.ora (test1)

    SID_LIST_LISTENER =
    *(SID_LIST =*)
    *(SID_DESC =*)
    * (SID_NAME = PLSExtProc) *.
    * (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)*
    * (= Extproc program) *.
    *)*
    *(SID_DESC =*)
    * (GLOBAL_DBNAME = TEST1) *.
    * (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)*
    * (SID_NAME = TEST1) *.
    *)*
    *)*

    TEST1 =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop029.tvsil.com)(PORT = 1521)) *.
    *)*

    SID_LIST_ORCL =
    *(SID_LIST =*)
    *(SID_DESC =*)
    * (GLOBAL_DBNAME = TEST1) *.
    * (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)*
    * (SID_NAME = TEST1) *.
    *)*
    *)*

    LISTENER =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC)) *.
    *)*

    ORCL =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop041.tvsil.com)(PORT = 1522)) *.
    *)*

    Well, it's certainly the most, uh, listener.ora interesting I've ever seen... where did you find with this?

    Server tnsnames.ora

    TEST1 =
    *(DESCRIPTION =*)


    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop029.tvsil.com)(PORT = 1521)) *.
    *(CONNECT_DATA =*)
    * (SERVER = DEDICATED) *.
    * (SERVICE_NAME = TEST1) *.
    *)*
    *)*

    ORCL =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop041.tvsil.com)(PORT = 1522)) *.
    *(CONNECT_DATA =*)
    * (Service_name = ORCL). *
    *)*
    *)*

    EXTPROC_CONNECTION_DATA =
    *(DESCRIPTION =*)
    *(ADDRESS_LIST =*)
    * (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)) *.
    *)*
    *(CONNECT_DATA =*)
    * (SID = PLSExtProc) *.
    * (PRESENTATION = RO) *.
    *)*
    *)*

    customer listener.ora (orcl)

    A listener.ora on the client makes as much sense as a radiator on a 1965 Volkswagen. The listener is strictly a process on the server side. That's the whole reason to live is to 'listen' (where its name) for connection requests.

    Customer tnsnames.ora

    LISTENER_TEST1 =
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop029.tvsil.com)(PORT = 1521)) *.

    TEST1 =
    *(DESCRIPTION =*)
    * (ADDRESS = (PROTOCOL = TCP) (HOST = Desktop029.tvsil.com)(PORT = 1521)) *.
    *(CONNECT_DATA =*)
    * (SERVER = DEDICATED) *.
    * (SERVICE_NAME = TEST1) *.
    *)*
    *)*

    ORCL =
    *(DESCRIPTION =*)
    *(ADDRESS_LIST =*)
    (* (ADDRESS = (PROTOCOL = TCP)(HOST = desktop041.tvsil.com) (PORT = 1522))) *.
    *(CONNECT_DATA =*)
    * (Service_name = ORCL). *
    *)*
    *)*

    EXTPROC_CONNECTION_DATA =
    *(DESCRIPTION =*)
    *(ADDRESS_LIST =*)
    * (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC2)) *.
    *)*
    *(CONNECT_DATA =*)
    * (SID = PLSExtProc) *.
    * (PRESENTATION = RO) *.
    *)*
    *)*

    OK, let's clear up a few things.

    First of all, as mentioned, the listener is purely a process on the client side. There is therefore no use to a listener.ora on the client.

    Second, a single listener, listening on a single port, can serve several databases multiple editions in multiple oracle homes. He listens to a connection, it puts in place (on a different listening port on) and then is out of the picture for this connection. It establishes the connection, but not the support it. Your listener.ora is much more complex (dare I say convoluted) as necessary.

    On the client side (the server can also act as a client) and the tnsnames.ora is used to resolve an alias (a tns service name) to a real destination on the network.

    Suppose you have the following in your tnsnames.ora:

    larry =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = myhost)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = curley)
    )
  )

    Now, when you issue a connect, say like this:

    $> sqlplus scott/tiger@larry

    TNS will appear in your tnsnames.ora for an entry called "larry". Then, tns sends a request to (PORT = 1521) on (HOST = myhost) to aid (PROTOCOL = TCP), requesting a connection to (SERVICE_NAME = curley).

    Where's (HOST = myhost) on the network? When the request is passed to tns to the next layer in the network stack, the name "myhost" resolves to an IP address, either via a file 'hosts' local, through DNS, or possibly other mechanisms being used less. Alternatively, you can hard-code the IP (HOST = 123.456.789.101) in the tnsnames.ora.

    Then, the request arrives (port = 1521) on (HOST = myhost). If all goes well, there is a listener on myhost configured to listen on (PORT = 1521), and this listener knows (SERVICE_NAME = curley). If so, you'll be connected.

    What can go wrong?

    First, there may not be an entry for 'larry' in your tnsnames file. In this case, you get "ORA-12154: TNS: could not resolve the connect identifier specified" no need to go looking for a problem on the host, with the listener, etc.. If you cannot place a phone call because you do not know the number (can't phone your telephone book or can't find the group you're looking for it contained therein) you don't look at problems at the switchboard.

    Perhaps the entry for larry was found, but myhost could not be resolved to an IP address (for example there is no entry for myhost in the local hosts file). This will mean by "ORA-12545: Connect failed because target host or object does not exist.

    Maybe there is an entry for MyServer in the local hosts file, but it specified a bad IP address. This will mean by "ORA-12545: Connect failed because target host or object does not exist.

    Maybe the INVESTIGATION period was good, but there is no listener running: "ORA-12541: TNS:no listener.

    Maybe the INVESTIGATION period was good, there is a listener to myhost, but he is listening on a different port. "ORA-12560: TNS:protocol adapter error.

    Maybe the INVESTIGATION period was good, there is a listener to myhost, listening on the specified port, it's unknown SERVICE_NAME = curley. "ORA-12514: TNS:listener is not currently of service requested in connect descriptor.

  • Sqlplus not find tnsnames.ora

    Hey guys,.

    I have a question about oracle client and the tnsnames.ora file. Basically, I have the customer put in place and it seems to work on the use of sqldeveloper such that she can see the tnsnames.ora file in the drop-down list but I don't seem to be able to connect using sql, which makes me think that it cannot find the file ora. I set the env as:
    DON@donkeyhome:/usr/lib/oracle$ echo $PATH
.:/usr/lib/oracle/oracle_client/bin:.:/usr/lib/jvm/jdk/bin:/usr/lib/jvm/jdk/jre/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
DON@donkeyhome:/usr/lib/oracle$ echo $ORACLE_HOME
/usr/lib/oracle/oracle_client
DON@donkeyhome:/usr/lib/oracle$ echo $TNS_ADMIN
/usr/lib/oracle/network/admin
DON@donkeyhome:/usr/lib/oracle$
    Sql developer seems to work with the tns ok but not sqlplus:

    DON@donkeyhome:/usr/lib/oracle$ sqlplus SYSADM@STUDA1

SQL*Plus: Release 10.2.0.1.0 - Production on Tue Jan 6 16:26:50 2009

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Enter password:
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
    Any help with this would be greatly appreciated that I had this problem and commented on many forums for about 1 month now :(

    Dave was soon

    Published by: wheelie on January 5, 2009 22:28

    Published by: wheelie on January 7, 2009 22:32

    Wheelie,

    I understand that you have tried many options to solve and in general, this mistake is easy to correct. Bad especially as a tnsnames.ora entry, you can also try dos2unix tnsnames.ora see if it removes all special characters and it changes size.

    Concerns

  • location of the file tnsnames.ora and Listener.ora

    Hello

    env: Oracle 11 g 2 - Orable Linux 6.2 64bits

    I set up a database for the client server. I installed IM and the House according to the standards of the Oracle RDBMS. Then I configured the listener to run BOF IM home. If the location of the 'ora, tnsnames' and 'listener.ora' files is $GI_HOME/network/admin.

    Customer's DBA is asking me to conform to the standard for the location of these two files. Here's what he asked for:

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    user130038 wrote:

    Thanks to you two!

    So basically this DBA do not like to follow standards of Oracle but his own.

    BINGO!

    What is the problem with the help of $ORACLE_HOME/network/admin for these two files if there were several homes of oracle on a server? Sorry I never got to work on a server with multiple oracle homes, so I have no idea.

    The 'standard' with several houses installation is to run the listener from the version the most recent House.  If all of the houses are of the same version (putting aside the question of 'why'), then just pick one that is going to be home for the listener.  If the installation program uses the Grid Infrastructure (ASM and/or Oracle Restart), you must run the listener from the House of IM, not House the database.

    There are some key things to consider here.

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    1a. a single listener, using the default name of the LISTENER and the unique default port of 1521 is quite capable of--indeed, we wanted to - several multiple databases editions of multiple service homes.

    2. the tnsnames.ora file provides a name resolution and address customers.  So it has the sense that on the client computer.

    2. when a database uses a db link to access a different database, the first database acts as a client to the second - as with any other LDAP client.

    Best regards

  • After changing the port (1521 to 1525 in listener.ora and tnsnames.ora) OEM: the database is down

    Hello

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    (DESCRIPTION_LIST =

    (DESCRIPTION =

    (ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1521))

    )

    (DESCRIPTION =

    (ADDRESS = (PROTOCOL = TCP (PORT = 1525))(HOST = localhost))

    )

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    (DESCRIPTION =

    (ADDRESS_LIST =

    (ADDRESS = (PROTOCOL = TCP (PORT = 1525))(HOST = localhost))

    )

    (CONNECT_DATA =

    (SERVER = DEDICATED)

    (SERVICE_NAME = bi)

    )

    )

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    What should I do? Can someone help me solve the problem?

    Thanks in advance.

    UPDATE:

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    So what I'm doing is decreasing the config:

    $ emca - deconfig dbcontrol db-rest drop

    and then create again:

    $ emca - create config dbcontrol db-rest

    Voila.

    Best regards

    Jerry Antonius

    Hello

    Try to change the port numbers in the following files

    Don't port no 1521 to 1525

    $ORACLE_HOME /_SID/sysman/config/emoms.properties

    oracle.sysman.eml.mntr.emdRepPort = 1525 (before 1521)

    $ORACLE_HOME /_SID/sysman/emd/targets.xml

    (Before 1521)

    (Before 1521)

  • DBD::Oracle and instant client - can't find tnsnames.ora

    Hi all! :-)

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    My OS: CentOS 6.6, i386

    Installed:

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    Oracle - instantclient12.1 - devel - 12.1.0.2.0 - 1.i386

    Oracle - instantclient12.1 - sqlplus - 12.1.0.2.0 - 1.i386

    Perl-DBI-1, 609 - 4.el6.i686

    and last perl-DBD-Oracle-1, 74-CPAN.

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    SELinux disabled.

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    tnsnames.ora exist in /usr/lib/oracle/12.1/client/network/admin

    I wrote a simple perl script to test the connection:

    use strict;
use DBI;

my $dbh = DBI ->connect("dbi:Oracle:crm", 'login', 'password',{RaiseError => 1} );
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    When I try to run script command line - everything isn't ok, no errors (Yes, I can run queries, etc... )

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    DBI connect('crm','login',...) failed: ORA-12154: TNS: could not resolve the connect identifier specified (DBD ERROR: OCIServerAttach) in /opt/otrs/bin/cgi-bin/oratest.pl on line 9

    I am trying to add ORACLE_HOME with PerlSetEnv and script see (I checked through % ENV), but no luck.

    Probably easier to use EZconnect instead of tnsnames.ora:

    $machine = 'my.oracle.database.com';
 $port = 1521;
 $sid = 'my_sid';
 $dbh = DBI->connect("dbi:Oracle://$machine:$port/$sid", $user, $pass) ||
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  • SQLNET.ora and tnsnames.ora, listener.ora btwn difference

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    What is the fundamental difference between these 3 files - sqlnet.ora, listener.ora and tnsnames.ora?

    Version may be 10 g.

    (a) Listener.ora is a SQL * Net configuration file allows you to Configure listeners (needed to accept applications for remote connection) Oracle database.

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  • tnsnames.ora and oracle cleint

    We have a duty to make an analysis of data on one of our oracle databases. We have a copy of the tnsnames.ora file with the Server DB and SID etc.

    If you use something like toad or gold to query the DB, you also need to install client oracle on the machine (windows XP)? Or just the TOAD software?

    Is there a device by default on XP where tnsnames.ora needs to be saved?

    And if we don't need the customer what is the right version?

    user599292 wrote:
    We have a duty to make an analysis of data on one of our oracle databases. We have a copy of the tnsnames.ora file with the Server DB and SID etc.

    If you use something like toad or gold to query the DB, you also need to install client oracle on the machine (windows XP)? Or just the TOAD software?

    Is there a device by default on XP where tnsnames.ora needs to be saved?

    And if we don't need the customer what is the right version?

    Toad, Yes, you have the Oracle client. Cannot say on 'gold', I don't know what it is. In general, any product like that will sit on top the Oracle client, not replace it.

    There is nothing magical about tnsnames.ora. It is just a file of name resolution that is used by the software oracle client. If you have a magical application which replaces the customer oracle instead of using it, then your tnsnames.ora will be without intrinsic value beyond giving you the necessary information configure magic of the application.

    Published by: EdStevens on October 14, 2011 06:32

  • When I need the machine tnsnames.ora and customer configurations?

    Hello

    I installed Oracle 11 g on Linux system and successfully created the databases. I can access the database (on server) Enterprise Manager and SQL * (by sqlplus SYSTEM/pass@ora). On another computer I installed the Oracle 11 g database Client (and chose the type administrator installation). Before you start the network for local configuration Setup Wizard Net Service Name, I started Enterprise Manager (the same address, what happens on the server). I was very surprised that I can access Enterprise Manager client without any additional configuration.
    I know, tnsnames.ora help with SQL * more (we can access SYSTEM/pass@ora and don't give no address ip and port).
    And my questions: can I access by Enterprise Manager of any client computer without creating tnsnames.ora and additional configurations client machine?
    Is SQL * more use only tnsnames.ora?

    Thanks awfully for help.
    Concerning

    Luk004 wrote:
    can I access by Enterprise Manager of any client computer without creating tnsnames.ora and additional configurations client machine

    Yes, because the Business Manager is an application of 3 layers: you connect to an application server that connects to the database instance.

    Luk004 wrote:
    Is SQL * more use only tnsnames.ora?

    No.: each client must connect directly to the instance of database with a base layer Oracle Call Interface (OCI) must use tnsnames.ora.
    There are a few exceptions:
    -The thin JDBC driver: http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14251/adfns_environments.htm#sthref52.
    -EZConnect connection string: http://download.oracle.com/docs/cd/B19306_01/network.102/b14212/naming.htm#ABC524382SRI12.

  • Change the location TNSNAMES.ora (discoverer 11g)


    Hello

    I have a requirement where I need to change the location of tnsname.ora.

    I installed Oracle Fusion Middleware install (11.1.1.7) and then set the field to the Finder only.

    Tnsnames.ora location is $DISCO_INST_HOME/config/tnsnames.ora

    Another use of symbolic link, can I change the configuration to change the location of the TNSNAMES.ora file.

    Concerning

    Sumit SALAUN

    Hi Sumit

    I have additional information for you, with the permission of a contact I within the Oracle.

    Yes, you can use the TNS_ADMIN environment variable.

    Indeed, in the [middleware_home]\[oracle_instance]\config\OPMN\opmn\opmn.xml that it points to the location that you mentioned.

    You can update the location of the file

    Run: [middleware_home]-[oracle_instance\bin\opmnctl reload (to pick up the new changes in the opmn.xml file

    the next session of discoverer (dis51ws) began to read the changes.

    If this fails, stopall opmnctl, then opmnctl startall

    I also checked on other files that I mentioned earlier. We believe that they are not necessary for the discoverer, or why they would have this environment variable defined here as the repositories of metadata of Fusion Middleware use JDBC. They must be to another generic use of Weblogic or custom java applications.

    The binary discoverer/server only read /sessions opmn.xml - so simply by changing opmn.xml should be enough

    Best wishes

    Michael

  • EM does not create entry tnsnames.ora with service name orcl11gr2

    Hi all

    I am trying to create a service network with EM Database Control, Net Services Administration link name. On the service name field, under the "Edit Net Service Name" screen, I type in orcl11gr2, and it throws the following error:

    Validation error
    Review and correct the following errors, and then try again:
    Service name - specify a valid service name.

    I wonder what is the additional validation that checks EM. I guess it's to check the number of characters to 8 characters or less.

    In addition, because of this additional validation that is in MS, all entry tnsnames.ora with service name = orcl11gr2, I won't be able to use 'EM to change, as I have the same error.

    But why Oracle implements this additional validation when the same validation is not implemented on other Oracle tools? For example:
    1 dbca allows me to create a database with instance_name greater than 8 characters, and the results of the initialization parameters will be as follows:
    db_name = orcl11gr - truncated to 8 characters
    instance_name = orcl11gr2
    db_unique_name = orcl11gr2
    noms_service = orcl11gr2

    2 oracle Net Manager supports the name of orcl11gr2. The name of the created Service Net, I have no problem connecting to the database.
    3. name of the service orcl11gr2 of listener support

    I am using Oracle 11 g R2 (11.2.0.1.0) for Microsoft Windows (x 64), running on Windows 7.

    Its a known issue fixed 12gc Ms.

    concerning
    Bennett

  • Tnsnames.ora (ORA-12162) Configuration problems

    Hi all

    I have a database of 10.2.0.5 on a RedHat Linux box that I can use locally. I mean, I can connect to sqlplus using "connect scott/tiger".
    * $ export ORACLE_SID = MASTER *.
    * $ sqlplus /nolog *.
    * > connect scott / tiger *.
    * > Display the service_name parameter *.
    service name string MASTER.myhost.mydomain
    * > Display the db_name parameter *.
    db_name string MASTER

    Then, I wrote a listener.ora in my $ORACLE_HOME/network/admin like this:

    LISTENER_MASTER =
    *(DESCRIPTION =*)
    (* (ADDRESS = (PROTOCOL = TCP)(HOST = myhost.mydomain) (PORT = 1522))) *.

    SID_LIST_LISTENER_MASTER =
    *(SID_LIST =*)
    *(SID_DESC =*)
    * (GLOBAL_DBNAME = Master.myhost.mydomain) *.
    * (ORACLE_HOME = /Oracle/product/10.2)*
    *(SID_NAME = MASTER))) *.

    Has successfully started lsnrctl start and netstat auditor shows me that the box is the listening port 1522, belonged to tnslsnr.

    On the same machine (for testing purposes), I wrote this tnsnames.ora in $ORACLE_HOME/network/admin like this:

    MASTER =
    *(DESCRIPTION=*)
    * (ADDRESS = (PROTOCOL = tcp (PORT = 1522))(HOST=myhost.mydomain)) *.
    * (CONNECT_DATA =(service_name=Master.myhost.mydomain))) *.

    Unfortunately, I am unable to connect to my MASTER database:
    * $ ORACLE_SID unset *.
    * $ sqlplus /nolog *.
    * > connect to scott/tiger@MASTER*
    ORA-12162: TNS service name: net is incorrectly specified

    A trace of the "sqlplus" system process shows me that it is the correct reading of the tnsnames.ora file, I have no TNS_ADMIN environment variable (I also tried to put in my $ORACLE_HOME/network/admin).

    The curious thing, is when I tried to launch netmgr, this interface allows to test a tnsnames entry. So I did, and he told me I logged successfully while I just load the configuration of my own (I mean, it uses the tnsnames.ora I wrote, and I even tried to crush him of netmgr without success)

    Another curious, tcpdump shows me no traffic on port 1522...

    I turned around many sites and checked my files .ora ten times... so if there are clues...
    Thank you!

    Salvation;

    Please see:
    ORA-12162 connecting using DOB (no alias tnsnames) [ID 312348.1]

    Respect of
    HELIOS

  • Instant tnsnames.ora for client Configuration procedure?

    The instant client has any tnsnames.ora or tnsping.exe. There is no 'normal' client available anywhere on the site of oracle, who needs this instant client which is completely unusable - http://download.oracle.com/docs/cd/B19306_01/server.102/b14196/network005.htm#CIHJHJGJ said to use Oracle Net Manager to set up the network for the instant client, but where to find the Oracle Net Manager? It is not available separately, but only with the Oracle sever Installer. Why does download the server in order to use just the customer?

    I created the structure of network/admin directory and copied the tnsnames.ora in it and also copied the tnsping.exe, but it does not say some 'no message file. Can someone please?

    Published by: user4928701 on 16 Sep, 2011 04:00

    user4928701 wrote:
    There is no 'normal' client available anywhere on the oracle website,

    Subsection through software downloads of database, under the see all link for your platform, you will find the Setup file of database "full" Client (e.g., win32_11gR2_client.zip).
    http://www.Oracle.com/technetwork/database/Enterprise-Edition/downloads/index.html

    http://download.Oracle.com/docs/CD/B19306_01/server.102/b14196/network005.htm#CIHJHJGJ said to use Oracle Net Manager to set up the network for instant customer,

    Where does say instant customer?

    and also copied the tnsping.exe Moreover,

    Copy of the files at random on installations of Oracle is obviously not possible.
    Please use an appropriate installation package. If you need administrative tools, I would say this type of installation by the full Client with the "Administrator".

    However, for normal applications need connection OIC/Net base libraries and to facilitate their deployment, Instant Client agrees very well.

  • Error in tnsnames.ora

    Hello

    I installed Oracle 10.2.0.1 and then created my listener and tnsnames using NETCA. I get the following error for tnsnames.ora.

    Try to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.102))(PORT = 1521)) (CONNECT_DATA = (SID = ora10g))
    TNS-12533: ADDRESS TNS:illegal settings

    Listener does not error. I am including the files tnsnames.ora and listener.ora for your referral link. I would be grateful if someone can help to report the error.

    Listener.ora
    listener.ora # Network Configuration file: F:\oracle\network\admin\listener.ora
    # Generated by Oracle configuration tools.

    LISTENER10G =
    (DESCRIPTION_LIST =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.102)(PORT = 1521))
    (ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC0))
    )
    )

    SID_LIST_LISTENER10G =
    (SID_LIST =
    (SID_DESC =
    (SID_NAME = PLSExtProc)
    (ORACLE_HOME = F:\oracle)
    (= Extproc PROGRAM)
    )
    )

    tnsnames.ora
    tnsnames.ora # Network Configuration file: F:\oracle\network\admin\tnsnames.ora
    # Generated by Oracle configuration tools.

    ORA10G =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.102)) (PORT = 1521))
    (CONNECT_DATA =
    (SID = ora10g)
    )
    )

    EXTPROC_CONNECTION_DATA =
    (DESCRIPTION =
    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC0))
    )
    (CONNECT_DATA =
    (SID = PLSExtProc)
    (PRESENTATION = RO)
    )
    )

    where ORA10G is the name of my base and LISTENER10G is the name of listener 10g.

    Kind regards
    Somd

    Hello..

    Instead your TNSNAMES.ora, this article has only, save, and run tnsping ora10g. Also paste the entry in the sqlnet.ora file.

    ORA10G =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.102)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SID = ora10g)
      (SERVER = DEDICATED)
    )
  )

    You are missing in your entry for the ora10g tns * (ADDRESS_LIST = * line.)

    HTH
    Anand

    Published by: Anand... on March 17, 2009 05:15

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