Oracle 8 Client Download

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OracleInstant Client enables development and deployment of applications that connect to Oracle Database, either on-premise or in the Cloud. The Instant Client libraries provide the necessary network connectivity and advanced data features to make full use of Oracle Database. The libraries are used by the Oracle APIs of popular languages and environments including Python, Node.js, Go, PHP and Ruby, as well as providing access for Oracle Call Interface (OCI), Oracle C++ Call Interface (OCCI), JDBC OCI, ODBC and Pro*C applications. Tools included in Instant Client, such as SQL*Plus, SQL*Loader and Oracle Data Pump, provide quick and convenient data access.

Instant Client RPM packages for Oracle Linux can now be installed from yum.oracle.com for Oracle Linux 8 and Oracle Linux 7. Older releases are available for Oracle Linux 9, Oracle Linux 8, Oracle Linux 7 and Oracle Linux 6.

Whether your applications are in the cloud or on-premise, you can install Instant Client and connect to cloud databases. Follow the normal installation process for your operating system. Some cloud-specific references are shown below.

DigiCert retired the Organizational Unit (OU) field for all public TLS/SSLcertificates to comply with industry standards as of August 2022. This meansthat public TLS/SSL certificates issued by DigiCert will no longer have an OUfield. Refer to MOS note 2911553.1for details.

To avoid disruption to applications connecting to Oracle Autonomous Database onShared Exadata Infrastructure (ADB-S) during the server side certificatechange, you must use hostname based matching of the server certificate.

The following versions of Oracle Instant Client automatically support hostnamebased matching:

Versions: 18.19 (or later), 19.2 (or later), 21 (base release or later), 23.4 (or later)

Oracle Call Interface (OCI), Oracle C++ Call Interface (OCCI) or ODBCapplications must use one of the above client versions.Oracle Database drivers based on Oracle Instant Client or Oracle DatabaseClient (e.g ODPI-C, python-oracledb Thick mode, cx_Oracle, node-oracledb Thick mode,godror, PHP OCI8, PHP PDO_OCI, ruby-oci8, ROracle, and rust-oracle) must usethe driver with a compatible client version from the list above.An additional step is required if you have changed the ADB-S connection string.

ADB-S connection strings contain a hostname "...(HOST=xyz)..." which depends onthe region. For example, in the Chicago region the hostname would be"adb.us-chicago-1.oraclecloud.com". If you have replaced the default hostnamewith an IP address or a custom hostname, then hostname based DN matching willfail. The solution is to add a new entry to your /etc/hosts file using theoriginal ADB-S domain suffix. Your connection string should then use this newname. For example an entry "localtunnel.adb.us-chicago-1.oraclecloud.com"could be created and used.

When I try to connect to Oracle, I experience this error message. Currently I have both of 32 bits and 64 bits OCI installed. How do I make sure Alteryx picks up 64 bits instead of 32 bits? Any settings from Alteryx?

Currently if I use 32 bits OCI, it works.

I just wanted to respond to this post just to put closure to it, even Henriette had helped you resolve the issue. Generally speaking, the issue appears to have stemmed from moving the location of the installation of the Oracle instant client. Alteryx did not know where to find it after that point. Pointing Alteryx to the new location, along with a few other troubleshooting steps, resolved your issue.

Thank you for your post. As this will likely require a closer look at your computer and configurations, please submit a support request to sup...@alteryx.com. A Customer Support Engineer will be more than happy to assist you.

You can also have both versions of the driver running if needed for backwards compatibility. You just need to have you SQL_PATH with both locations separated by a semi-colon. Keep in mind that Alteryx will only read the variables when it opens, so you will need to close designer and re-open to make Alteryx aware of the new location.

Viewed 10K+ times! This question is You Asked Hi Tom,

Wish you a happy new year!

A theoretical problem that is eating up my mind over the past few days. Your advise would be helpful.

A DBA from our project informed me that a session from my PC got connected on day 1 and is running still in ACTIVE status for two weeks. This has resulted in a lock on the dictionary tables owing to which we have got a performance problem. On day 14, the session was killed at the database to get rid of the problem. (as stated by the DBA)

When I checked the client tool status in my PC, (PL SQL developer in this case), it was not running and I cannot find any relevant process as well in the task manager. We connect to the database over a VPN connection, which terminates itself after 24 hours.

In this case,

How can the session remain ACTIVE in Oracle and holding a lock? When there is an abnormal (VPN exit, process killed) exit / normal termination (proper exit), the session should not hold any locks, isn't? Is the DBA trying to cheat me here? The DBA has provided a session ID, name, logon time, SQL Hash value but says he holds no information on the SQL / PL SQL executed by the session, which resulted in a lock. Please throw some light on this.

Thanks as Always.

and Tom said...It is deceptively easy to do.

TCP/IP doesn't interrupt things by default, by design. When a connection goes away, the client and/or server do not immediately get notified. So, if your client connects to the database and does nothing - and you unplug your client (blue screen it, kill it, pull out the network cable, crash the computer, whatever) the odds are the session will stay in the database. The server will not know that it will never receive a message from you. We have dead client detection for that if it becomes an issue:

_01/network.101/b10776/sqlnet.htm#sthref476

As for the active session, that is really easy. You open a connection, you submit a request over this connection like "lock table T". Table t is locked by your transaction in your session. You then submit a block of code like:

begin

loop

dbms_lock.sleep(5);

end loop;

end;

/

your session will be active for as long as that code is running - the client process is blocked on a socket read waiting for the server to send back a result - a response (which of course will never come). The server isn't touching the network at all right now - it is active with your code. So, if your client 'dies' right now - the block of code will continue to run, and run, and run - and since it never commits - it'll just hang in there and run and of course any locks you have will remain in place.

The dba isn't trying to cheat you. If they were capturing statspack reporting information - they should be able to turn that hash into a sql string, the historical sql statements would be captured in the statspack tables.

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Is this answer out of date? If it is, please let us know via a Comment Comments Comment Active sessionSrini Sr, January 05, 2010 - 5:05 pm UTC

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I'm trying to connect to an Oracle 19C database. I have installed two Oracle Clients (11g and 12c) because we need to support legacy programs. I can connect with no issue with any user using sqlplus through the 12c client. But if I use the 11g (11.2.0) client with any user. I always get:

For some components, e.g. "Oracle OleDB Provider" it is even not possible to have more than just one version (again, one each for 32-bit and 64-bit) installed. This is a limitation of the old Windows COM architecture.

I couldn't make a 11 client (ODP.Net + Instant Client 11.2) connect to a 19 DB, whatever changes I made to the sqlnet.ora file regarding security, etc. be it on the server or the client side. I always had a cryptic message about the impossibility to negociate protocols.

I have connected to oracle 19C Release 19.0.0.0.0 using ODAC 11.2.0 without any issue. But if you want to connected to oracle 19C higher release you need to have ODAC 11.0.3 or higher. Still looking for way to connect using ODAC 11.0.2 to later Oracle 19C release.

You don't need to add an ORACLE_HOME environment variable. If this is a full client, the installer should have added it to your path. Check. If this is an instant client, you don't have a \bin folder and the path would just need whatever folder you unzipped it to.

I tried without Oracle home with oracle home , with full client , with instant client but it dint work. RIght now , Oracle 19c instant client is installed on my machine. We don't have the zipped folder , we have Software center of our clients portal from which we have installed. I have used 1st option in that - i.e instant client.

Made entry in Path : C:\instantclient and also added TNS_ADMIN and placed tnsnames.ora in C:\instantclient folder. Then also, Toad is not picking up the client and it says " You do not have any oracle clients installed".

I don't think you are missing anything. I just tried Toad 10.1 with a 19c instant client and couldn't get Toad to find it either. I guess it's not supported and you should stick with a full client (or older version of an instant client).

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