TNS_ADMIN (path to tnsnames.ora) using Instant Client IGNORED

Hi,
I developed a simple utility which uses OCCI LIB from 10g release. I'm deploying it with Oracle Instant Client lite libraries.
Everything works fine when tnsnames.ora is present in the same dir. When I move it somewhere else and set TNS_ADMIN to that directory, it doesn't work anymore:
C:\uplob>set TNS_ADMIN=c:\tns;
C:\uplob>echo %tns_admin%
c:\tns;
C:\uplob>uplob u/p@xe 15 input.dat
Exception:12154 ORA-12154: TNS:could not resolve the connect identifier specif
ied
This seems very simple, but I still cannot determine why TNS_ADMIN is not being taken into account.
Thank you for any help with this issue,
david

I think for Windows ,
You may have to set this in MY-COMPUTER-->Advanced-Env-Variables
and reboot to take effect.
rgds

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#Deleted in all fields using Instant Client ODBC

Finally I got Instant Client ODBC installed and working. The trick seemed to be defining ORA_HOME, TNS_ADMIN, and the PATH to point to the Instant Client directory - and alphabetizing the entries in tnsnames.ora!
Anyway, now in linking tables within MS-Access there is one particular table that displays "#Deleted" in all columns of all rows. If I link to the same table using the regular Oracle ODBC driver, everything displays as it should.
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Hi all. Just got ODBC working w/the instant client and would like to add what I've found with this with some quick testing.
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Hope this helps in tracking down what might be amiss.

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user11273096 wrote:
Hi All,
PLease need help urgently....
Have issue of connecting to a remote oracle server after following several tutorial online from step A-Z. http://www.dbatoolz.com/t/installing-oracle-instantclient-basic-and-instantclient-sqlplus-on-win32.html
I am the DBA that installed the remote oracle too so every information are right.Either you are mistaken or Oracle is in error.
I doubt Oracle mis-reports reality!
>
These are the errors: ORA-12154 or ORA-12560 TNS: protocol adapter error.ORA-12154 ALWAYS only occurs on SQL Client & no SQL*Net packets ever leave client system
ORA-12154 occurs when client requests a connection to some DB server system using some connection string.
The lookup operation fails because the name provided can NOT be resolved to any remote DB.
The analogous operation would be when you wanted to call somebody, but could not find their name in any phonebook.
The most frequent cause for the ORA-12154 error is when the connection alias can not be found in tnsnames.ora.
The lookup operation of the alias can be impacted by the contents of the sqlnet.ora file; specifically DOMAIN entry.

Problem using instant client with Win 7

Hi,
I have a Powerbuilder application that runs very well with Win XP and Oracle client 8 to 10.
With new computers (Win 7), we try to use instant client... but there are problems with accents ! In fact, all accents are replaced by a "¿" in the database.
It only appears when we are using our programs from a Win 7 machine with instant client.
Do you know if there is something to configure to solve this problem ?
Best regards.

user1931557 wrote:
Hi,
I have a Powerbuilder application that runs very well with Win XP and Oracle client 8 to 10.
With new computers (Win 7), we try to use instant client... but there are problems with accents ! In fact, all accents are replaced by a "¿" in the database.
It only appears when we are using our programs from a Win 7 machine with instant client.
Do you know if there is something to configure to solve this problem ?
Best regards.
If the characters only appear on certain clients, then they are NOT being "replaced ... in the database". What you are seeing is an issue with presentation, not data.

Minimum Client Install and Path to TNSNames.ora

1) What files are required for a minimum client install.
2) What is the route/path a program should take to find the tnsnames.ora (Environment variable, registry?) - i.e. how does one locate it?
Thanks

1) Go to http://otn.oracle.com, look for the Downloads link, select and download Instant Client, unzip the file anywhere and follow the 'install' instructions.
2) The TNSNAMES.ORA will be in each ORACLE_HOME/network/admin directory
In addition, you could manually create a central one and use either the environment variable or registry entry TNS_ADMIN to locate that.
I generally use the Windows Explorer search capability to look for files.
You may want to review the Installation manual and/or the Administration manual for Windows. They do give this information and a lot more information relevant to your OS. These could be found at http://tahiti.oracle.com

Problem using Instant Client 10g with PHP4.3.10-16 on Debian Sarge

Hello,
My current email is [email protected]
I am trying to use PHP on Debian box using Oracle 10gR2 on a RH 4 server. Everything works fine individually, but I cannot get PHP4 to use InstantClient to connect to the Oracle Server. This is what I've done:
Oracle 10gR2 works fine on the RH 4 server. Listener is running and all required OS security is in place and works (TCP_wrappers, etc.).
Client machine runs Debian 3.1 (Sarge). It works fine and SSH connectivity to RH4 server works.
Instant Client 10gR2 installed on Debian client and works fine. Tested SQL*Plus connection to the RH server. I installed Instant Client from the zip file.
I did have to add libclntsh.so to /etc/ld.so.conf and run ldconfig to get Debian to use it, though.
Apache2.0.54-5 on Debian client works fine. Web pages on it can be opened in browsers from other machines.
Installed PHP4.3.10-16 on Debian client using following:
./configure --with-oci8-instant-client=<dir of my choice>
--enable-sigchild
I first checked ./configure help and the option with-oci8-instant-client was there.
Configure went well. Log showed checking for Instant Client files.
Ran make. Saw numerous Instant Client message as words scrolled.
Ran make install. Successful.
Restarted Apache2 with following env variables:
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TNS_ADMIN=<same directory where I put my sqlnet.ora and tnsnames.ora files).
SQLPATH=<same directory>
I know this is correct because Instant Client SQL*Plus can connect.
Browsers on other machines can view simple php scripts run from the Debian box.
BUT, phpinfo does NOT show an OCI8 section.
phpinfo does show the correct extension directory, though.
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I checked $PHP4HOME/ext/oci8/config.m4 file and the verbiage IS in there to use the --with-oci8-instant-client option, either with the default location or the extension_dir location.
I tried using the new ZendCore product, even though it is not certified for Debian. It installed okay but I could not get PHP5 to work. I uninstalled it successfully and redid all of the above.
So, any ideas as to what else I can do here? Other than not use Debian (which is probably the wisest thing to do). And I suppose I could install a thick Oracle client, assuming that Debian would take it. But I prefer the Instant Client.
I tried the PHP ./configure syntax I've seen several places on this forum.
./configure --with-oci8=instantclient,<directory>
This syntax may work on Red Hat machines but it throws a syntax error on Debian and aborts the configure.
Thanks for any help.

Thanks, but that did not work. Configure aborts because it cannot find the required OCI8 libraries. The --with-oci8 option is for the Oracle "thick" client. I have only the Instant Client...and am not interested in loading the older client.
I may have my own solution next week, though. I will be loading RH4 on a new server and will then install ZendCore and forget all about using Oracle with Debian.
Update on trying ZendCore on Debian Sarge:
I tried installing it again yesterday. The install seemed go to well, and said it was successful.
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Unable to connect remote databse via windows XP(using Instant Client)

I have downlaod instant Client and the PATH env variable automatically is set when I install Instant Client. Then I try to connect using the following(from the path C:/XEClient/bin):
sqlplus username/passwd@//host:[port][service name]
I get the following error:
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When I ping the host I get reply.
Also I am able to connect to that same database thru perl( so I presume there is no problem with the database not avaiable or port not open etc), where additionally ORACLE_HOME and ORACLE_SID env variable are set to the path in the remote machine. The databse version is Oracle 9.2
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Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
Windows NT TCP/IP NT Protocol Adapter for 32-bit Windows: Version 10.2.0.1.0 - Production
Time: 30-AUG-2006 14:56:03
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: Message 12535 not found; No message file for product=NETWORK, facility=TNS
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nt main err code: 505
TNS-00505: Message 505 not found; No message file for product=NETWORK, facility=TNS
nt secondary err code: 60
nt OS err code: 0
Client address: <unknown>
===========================================================
Am I missing some set up.
Can anybody help please...I have been trying since last 3 days.
Thanks

Hi Laurenz,
Sorry to say...but it still does not connect(incorporated your suggestions), nor is the trace generated. sqlnet.log looks no different. As about any other oracle clients...I did not have any until yesterday evening when we installed the entire 10g oracle...client and database.
Anyways now too after having installed oracle 10g on D drive, no succes in connecting to remote databse.
Two questions:
1. Is XE client compatible with 10g database? As I am trying to connect to 9.2 version as mentioned in my initial query.
2. When I ping the host I do get reply. BUT when I telnet i.e.
telnet host port
....it says "could not open connection to the host, on port XXX: connect failed"
Does it mean there is a firewall at the remote end which is preventing the successfull connection? But then how do I connect thru' Perl with no extra info...
Any other suggestion please let me know...and also do you suggest I uninstall all oracle clients other than XE...or is there any way out ...having multiple clients?
Another query...hope I can use toad after having set up the XE client?
Thanks in advance...
Message was edited by:
user527367

Distributing new tnsnames.ora to 2000+ clients

Dear all,
We are in process of migrating from single instance to RAC. Following is configuration of single instance database 'orcl'
HUY =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = cc1001-hisdbs01)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = orcl)
While the one given below is tnsnames.ora of our RAC setup, to which we will migrate.
ORCL2 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = hisdbs02-vip)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
(INSTANCE_NAME = orcl2)
ORCL1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = hisdbs01-vip)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
(INSTANCE_NAME = orcl1)
HUY =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = hisdbs02-vip)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = hisdbs01-vip)(PORT = 1521))
(LOAD_BALANCE = yes)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
(failover=on)
(load_balance=on)
(failover_mode=
(type=select)
(method=basic))
What are short term and long term solutions.
Short term solution can be to put VIPs of both nodes of the RAC in DNS and let DNS do dynamic load balancing (round robin).
One of the long term solutions can be to have one directory mapped to all clients which contains tnsnames.ora and have TNS_ADMIN on client side pointed towards this directory containing tnsnames.ora
What are your recommendations? Please suggest.
Br,
Anjum

I'd strongly suggest looking in to
migrating to Oracle Internet Directory rather than
having 2000 client machines relying on localnaming.
That is a very good advice. Considering there are no
remaining network issues. And, since the machines are connecting to the database through the network, there should be limited network issues to contend with.
I also support Justin's advice. Especially since the use of Oracle's LDAP (installed as the Single Sign-on components of the App Server 10.1.2 infrastructire) is included in the 10g database license fee as per the Licensing manual.
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How to use Instant Client 10G DSN-less feature with SQLDriverConnect?

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The help file's "Format of the Connection String" page doesn't provide any clues and DBQ is definitely not working.
What format should be used?
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...So I take it that I'll have to have the server
export to csv or a db format that will provide a
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b) installing the Oracle instant client on Linux
c) building an application with Oracle instant client ODBC
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Hi ,
we have a local database called DEV01 and a duplicate of this database in a datacenter. To be able to connect to both databases the TNSNAMES.ORA
on the local database server (not the one in the datacenter) has the following entries:
/* Entry for local database */
DEV01_local, DEV01_local.WORLD =
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export PATH=/opt/oracle/app/oracle/product/9.2.0/bin:$PATH
export ORACLE_HOME=/opt/oracle/app/oracle/product/9.2.0
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Is it a matter of the entries in the TNSNAMES.ORA?
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Jan

Both databases have the SID=DEV01.
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SQL> select instance_name, host_name from v$instance;
INSTANCE_NAME    HOST_NAME
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In your case the one defined by ORACLE_SID environment variable => but which from both is it?

EA3 - show path to tnsnames.ora on connection panel?

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connection identifier entries.
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a nonstandard tns file.
Oh, and a button that pops up "didn't we tell you you'd be causing trouble for yourself by insisting on maintaining your own tns file?" would be nice.

Until we add it you can do this for now:
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2) enter this:
setloglevel oracle.dbtools.raptor.utils ALL
3) Run Script
This just sets the java.util.logging level for this class so you don't get all the noise of turning on debug for everything.
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the set
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at oracle.jdbc.driver.T2CConnection.t2cCreateState(Native Method)
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at oracle.jdbc.driver.T2CConnection.<init>(T2CConnection.java:139)
at oracle.jdbc.driver.T2CDriverExtension.getConnection(T2CDriverExtension.java:79)
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at ConnectionExample.jdbcOCIDriver(ConnectionExample.java:379)
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Thanks,
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java.lang.UnsatisfiedLinkError: t2cCreateState
, so I installed InstantClient from Oracle of the same version, and reset the path:
-Djava.library.path="C:\Oracle\instantclient10_1"
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Oracle Instant Client & Oracle 9i Client Co-existence

I am having problems installing Instant client with existing Oracle 9i client. Some of our users have Oracle 9i client already installed. In this case, I need to do the following to make it work.
1. Add the Instantcclient dir path
2. Remove oracle_home from registry
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Metalink note 90419.1 describes how to connect to a database without using tnsnames.ora. eg
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I have had some success using a MS-DOS Batch File to launch an application that required the Oracle7 client long after it had been removed from the registry. This could work for the Oracle10 Instant Client
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set ORACLE_HOME=%CD%\oracle7client
set TNS_ADMIN=%ORACLE_HOME%\NETWORK\ADMIN
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set NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1
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DBOUTIL.EXE

TNS_ADMIN (path to tnsnames.ora) using Instant Client IGNORED

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