I'm trying to connect to a remote oracle database in my perl app.
When running the app, the following error appears:
"Connection Error: ERROR OCINlsEnvironmentVariableGet(OCI_NLS_CHARSET_ID)"
I got Oracle Instant Client and placed it locally then set the Oracle Home env to it, as I don't have Oracle client installed there.
My code is below:
BEGIN {
$ENV{NLS_LANG} = "AMERICAN_AMERICA.UTF8";
$ENV{OCI_NLS_CHARSET_ID} = "AMERICAN_AMERICA.UTF8";
$ENV{ORACLE_HOME} = #The path to the instant Oracle client";
}
#Connect to database
my $DBHandle = DBI->connect(
"dbi:Oraclehost=$host;sid=$sid;port=$port",
$userName,
$passWord
) or die "Connection Error: $DBI::errstr\n";
I'm using ActiveStat perl on Windows Server 2008, ORACLE 10g
I could find the root cause. I used Oracle Instant Client lite (instantclient-basiclite-win64-10.2.0.5) which contains only binaries. Then I tried Oracle Instant Client - SDK, which contains only lib.
I found that I need to merge both to get my code working, I used the SDK as main client, created a bin directory into it then placed the lite client into it...it works !
Related
Can someone help me connecting database oracle on robotframework for data manipulation?
So far I did:
*** Keywords ***
Connect to database
Connect To Database Using Custom Params cx_Oracle
... user='${DBUSER}', password='${DBPASS}', dsn='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=${DBHOST})(PORT=${DBPORT})))(CONNECT_DATA=(SID=${DBName})))'
*** Test Cases ***
Connect to database
#{queryResults} Query SELECT * from tb_example_table
log to console #{queryResults}
But I got error:
DatabaseError: DPI-1047: Cannot locate a 64-bit Oracle Client library: "failed to get message for Windows Error 126". See https://cx-oracle.readthedocs.io/en/latest/user_guide/installation.html for help
I tried to install Oracle Instant Client Downloads for Microsoft Windows (x64) 64-bit, but I couldn't find any executable file.
I am not able to connect to my Oracle 19C Cloud DB, I have downloaded the wallet and placed it in a secured place in my machine(windows).
I have installed Oracle 19C Client in my machine,
and updated tnsnames.ora(network/admin) with connection strings from wallet zip,
Not sure how whether I have missed any config like Environment variables
Getting below error from sqlplus
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
Note: I am able to connect to Cloud from Sql developer using the wallet file.
And I have Oracle 18c XE running in my machine.
Any help will be appreciated, thanks in advance.
Your problem seems to be related with the issue that you have an Oracle XE database version installed in your own laptop.
When you run sqlplus or any other OCI tool to connect to Oracle, no matter whether the database is a remote host or in the cloud, sqlplus evaluates the TNS_ADMIN environment variable to identify where your sqlnet and tnsnames files are located. If there is no variable, it uses the default values of your main Oracle registry entries, that for sure point to your XE version, as it was installed before.
When you get ORA-12154: TNS:could not resolve the connect identifier specified , your session is not finding any information regarding the target in your configuration files, probably because the session is evaluating the files in your XE installation
Try to do the following
Copy the wallet files provided by your Oracle Cloud to a location different to your XE installation.
Export the TNS_ADMIN variable in your sqlplus cmd session to this new path
Run sqlplus using wallet
Example ( I believe you did points 1 and 2 )
Install Oracle Client software on your computer. Use either the full
Oracle Database Client 11.2.0.4 (or higher) or the Oracle Instant
Client 12.1.0.2 (or higher). The Instant Client contains the minimal
software needed to make an Oracle Call Interface connection. The
Instant Client 12.1.0.2 (or higher) is sufficient for most
applications.
Download client credentials and store the file in a secure folder on
your client computer. See Download Client Credentials (Wallets).
Unzip/uncompress the credentials file into a secure folder on your client computer.
Edit the sqlnet.ora file in the folder where you unzip the
credentials file, replacing "?/network/admin" with the name of the
folder containing the client credentials.
Example
WALLET_LOCATION = (SOURCE = (METHOD = file) (METHOD_DATA = (DIRECTORY="/my_new_path")))
SSL_SERVER_DN_MATCH=yes
cmd> set tns_admin = my_new_path
cmd> sqlplus /#yourtnsentry
I don't know whether your cloud database is using a Public IP address or not, or if you want to use SSH tunneling to connect to the database. Take a look here, because then you might want to use SQLcl ( Sql Developer Command Line )
https://docs.cloud.oracle.com/en-us/iaas/Content/Database/Tasks/connectingDB.htm
I followed this steps to install Oracle 19.6.0 for Ubuntu 18.04:
https://medium.com/#TechExpertise/installing-oracle-sql-developer-on-ubuntu-16-04-lts-bfa4af959deb
Then for some reason I was not able to open sqlplus, so I followed this steps as solution:
https://gist.github.com/tcnksm/7316877
And now I want to log in sqlplus by typing sqlplus / as sysdba, but I am getting:
ERROR: ORA-12545: Connect failed because target host or object does
not exist
So I think I have to make the appropriate settings in listener.ora and tnsnames.ora,
but I am missing this files.
SQL Developer and SQL*Plus are client only tools that connect to a database that must be running somewhere: either on the same host or on another host.
If this database exists you should have its connect string to connect to it with SQL Developer or SQL*Plus
If this database does not exist, you must first create it: there are several ways to do this in addition to install Oracle Database (server - not client) and to create a database:
install Oracle XE 18c on Oracle Linux or Windows: installation will install database software and create a database at the same time (easier for non database specialist)
use a pre-installed VM such as: https://www.oracle.com/database/technologies/databaseappdev-vm.html.
Just installed Oracle 11g XE (Windows), but can't connect in SQL Developer or run any command in CLI.
When try to connect in CLI using SYS or SYSTEM with password defined during the install, get the following error:
ORA-12638: credential retrieval failed
When I tray to connect via SQL Developer (tried via SID and Service Name, hostname=localhost, port=1521, SID=xe), get this error:
Status : Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in
connect descriptor
Already tried change SQLNET.AUTHENTICATION_SERVICES = (NTS) to (NONE) in sqlnet.ora file. When I do this, get the following error when try to connect with the SYS or SYSTEM user and password:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Already tried every solution in Google results, like reinstall, stop and start services... Mostly ask for first connect in CLI to make some changes, but even this I can't accomplish.
Any suggestions on how connect to the database?
Found the solution:
I was installing in my company Windows user domain.
First uninstall any instance of Oracle XE 11g.
Switch to a local administrator Windows user and install Oracle XE 11g.
Sign off and back to company Windows user.
Edit the file C:\oraclexe\app\oracle\product\11.2.0\server\network\ADMIN\sqlnet.ora (or equivalent to your installation path). Change SQLNET.AUTHENTICATION_SERVICES = (TNS) to SQLNET.AUTHENTICATION_SERVICES = (NONE).
This change will allow you connect to database from you company Windows user.
As seen here: Error ORA-12638 in Oracle Database 11g
Try the following: Open command window, cd to Oracle bin directory, enter sqlplus /nolog. If you get a prompt enter connect / as sysdba. If you get connected then you can try "startup".
- -
Did you try to start the Oracle RDBMS service via Services (services.msc)?
Do you use an spfile? Check the registry for ORA_SID_NAME_PFILE that is different from default location of $ORACLE_HOME/dbs. Also check the default location. Use only the default location or the registry entry removing either the registry entry or the file in the default location depending on which you want to use.
I am configuring a server in CentOS 7 to connect to an Oracle database within the same network. IP ORACLE = 192.167.10.100 IP SERVER = 192.167.15.123
I have installed the Instant Client Package: Basic, SDK and SQL * Plus. Download link
Then set the environment variables:
ORACLE_HOME=/usr/lib/oracle/12.2/client64
PATH=$PATH:$ORACLE_HOME/bin
LD_LIBRARY_PATH=$ORACLE_HOME/lib
TNS_ADMIN=$ORACLE_HOME/network/admin
When entering with the SQL * Plus through the implicit connection string: With the format.
sqlplus username/password#host:port/sid
sqlplus testuser/orcltiger#192.167.10.100:1521/testdb
I get the error: ORA-12170: TNS: the connection timeout occurred
I have been able to connect with the same credentials from a Windows PC with Oracle SQL Developer but from CentOS I get an error:
Someone to help me find the solution, please.