I would know if it could works like this:
Database 11G R2 on Windows 2008 R2 x64
Oracle Client 9i (what version?) for OCI connection on 11g ?
I heard that we can use 9.2.0.4 for connection to 11G R2 database, but if you have an tutorial or if you can describe the way to do, i would be glad !
Because we are running on 9i database with 9i client ... on 2003 R2 x86.
Connection must be possible with Navicat or i would not be able to work fine.
Thanks.
Assuming that 9i client has been patched to at least 9.2.0.4 (note that most people do not apply patchsets to client machines which would be necessary here), a connection to an 11.2 database should be no different than a connection to any other version of the database. I've never heard of Navicat but I assume it's just using the standard Oracle client libraries to connect to a database.
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In my current project, facing problem of connecting the oracle server from oracle client. Here are the details
Oracle Server 12.2.0.1 64-bit
Oracle Client 12.2.0.1 32-bit
But after analysis, I noticed that I have a common requirement to connect all the oracle servers e.g. 11g, 12c, 18c, 19c from any of the oracle client.
I tried to find common version of oracle.dataaccess.dll which will work for all the above oracle servers from any of the oracle clients. But I couldn't able to find. For example 4.122.19.1 works for all the servers only if client is 19c. For 12c client, it's not working and so on. Is there any common version of oracle.dataaccess.dll available to serve this purpose?
Or do I need to use some other assembly in my project?
I also tried to use Oracle.ManagedDataAccess.dll. But it has an issue of locating the tnsnames.ora.
Any help/suggestions will be greatly appreciated.
I have installed the Oracle client on my server & configured the TNS as per the database hosters instructions.
Powerbi can now connect to the Oracle datasource.
Id like clarity regarding what method PowerBI is connecting to the oracle source.
For example, I can connect to oracle via ODBC without using the Oracle Client.
Id like to know what protocol the oracle client is using and what are the benefits of using it over ODBC?
It looks like Power BI recommends installing the ODAC runtime for your environment. There is no alternative option. You might be asking why Power BI uses the Oracle ODP drivers instead of the Oracle ODBC driver - I'm pretty sure the answer is that it's faster and supports more Oracle features, since it doesn't have to implement a bridge.
If you're frustrated with the large size of the Oracle Client or full ODAC developer downloads, you might be able to just install the ODAC XCopy runtimes, which are much smaller. (32-bit, 64-bit)
To answer your question about protocols, as far as I know, every client uses the Oracle Net component of the proprietary Oracle Net Services network stack to connect the client to the server.
Then the client sends commands over the network connection. Again, as far as I know, most clients use the low-level OCI library to do this.
There are a lot of different clients built on top of OCI:
SQL*Plus
SQL*Loader
Datapump
Oracle Instant Client
Oracle Client (ie, "Thick Client")
Oracle JDBC OCI driver
Oracle ODBC driver, and other drivers for Microsoft products (ODP.NET unmanaged, ASP.NET, OLE DB)
There's a few exceptions:
Oracle JDBC Thin driver (entirely Java code)
Oracle ODP managed driver (entirely .NET code)
There is also a Microsoft ODBC driver for Oracle, although Microsoft explicitly says to use the Oracle driver instead. It doesn't support most modern Oracle data features ("Unicode data types, BLOBs, CLOBs, and so on").
I have an Oracle 9i database server on a machine. I want to connect using the Oracle 12c client tool remotely to the 9i machine. I want to create a DSN and retrieve data from server to use in further front end applications. Is this possible?
I am already using the 11g client to connect to the 9i server, which is working fine. I want to test it with the 12c client.
My team are trying to migrate from ORACLE 10g to 11g. These are our system specs:
Our current production server:
ORACLE 10.2g
ORACLE Application Express(3.0)
Apache
Red Hat 64 bit
Our new server (not yet in production):
ORACLE 11.2g
ORACLE Application Express (4.1.1)
ORACLE HTTP Server
Red Hat 64 bit
We have managed to setup 11g, install APEX 4.1 and apply the recent patchset.
The only bit that's delaying us with our migration is that our business users have access to Crystal Reports XI, MS Access/Excel 2003 whcih they use to connect to our database. A typical user has Window XP SP 3 (32bit) operating system. At the moment we are using Microsoft ODBC for Oracle driver (version 2.575.1132.00) to connect to our 10g Database and have not had any issues. However when we try connect to 11g we keep getting ORA-03113: end-of-file on communication channel errors. In ORACLE SQL Developer, we're able to connect to our 11g instance using the "basic" connection. I have also used the "TNS" entries and that works well.
I think the business users obtained the Microsoft ODBC for Oracle driver by installing ORACLE Discover 3.1.3.6 which is used for another Oracle DB. They also have Oracle Client 7.3.3 which I can see Oracle73 (2.00.03.01) mentioned in the ODBM Data Source Admin screen.
We have tried googling for a result and after various tests, we have come to the conclusion that it is an ODBC driver issue. As far as our understand it ORACLE SQL Developer uses a different JAVA based driver to connect so it does not use the Microsoft version.
Can someone confirm that our understanding is correct about there being a compatibility issues with Microsoft ODBC for Oracle driver (version 2.575.1132.00) and 11.2g?
If so, what could you recommend a compatible driver to use with Crystal and Access/excel to extract the data?
I think the business users obtained the Microsoft ODBC for Oracle driver by installing ORACLE Discover 3.1.3.6 which is used for another Oracle DB. They also have Oracle Client 7.3.3 which I can see Oracle73 (2.00.03.01) mentioned in the ODBM Data Source Admin screen.
The Microsoft ODBC Driver for Oracle is written using an ancient version of the OCI (Oracle Call Interface) API that was deprecated when Oracle 8 was released (which was more than a decade and 11 major releases ago). Microsoft chose to desupport this driver rather than port it to the new version of the OCI API. Oracle 7 clients can connect to Oracle 10.2 databases but Oracle does not support connections between Oracle 7 clients and Oracle 11.2 databases.
You'll need to upgrade the version of the Oracle client that is installed on the business user's machines and you'll want to use the latest version of the Oracle ODBC driver that is appropriate for that version of the Oracle client. Assuming that you install the 11.2 version of the Oracle client (the only reason not to upgrade all the way to the 11.2 client would be if the users still needed to connect to older databases that don't support connections from an 11.2 client), you'd want to use the most recent version of the 11.2.0.x Oracle ODBC driver. The Oracle client install should also have the option to install a version of the Oracle ODBC driver-- that should be sufficient as well.
I recently upgraded my oracle client to 10g (10.2.0.1.0).
Now when I try to connect to a legacy 8.0 database, I get
ORA-03134: Connections to this server version are no longer supported.
Is there any workaround for this problem, or do I have to install two clients on my local machine?
Yes, you can connect to an Oracle 8i database with the 10g client, but the 8i Database requires the 8.1.7.3 patchset, which you can get from Oracle's Metalink support site (requires login).
Here's an Oracle forum post with the details.
If updating your Oracle Database isn't an option, then you can have 2 different clients installed (in different "Oracle Homes" (or directories), and use the selecthome.bat file to switch between your installed clients.
For example, before connecting to 8i, you'd run:
C:\Oracle\Client1_8i\bin\selecthome.bat
or this to use your Oracle 10g client:
C:\Oracle\Client2_10g\bin\selecthome.bat
I had to connect a C# code to an Oracle 7 (I know you it's 8...)... the only way I get it was to get the CD to install the Oracle Server and to go in the "Optional Configuration Component" and to use the Oracle73 Ver2.5.
I think you should go check the CD of the Oracle 8 Server and check if an ODBC is still available.
The best way to connect an Oracle 8.1.7 and higher is through Instant Client. Download Instant client 10.2 from oracle site, copy all files in the same folder where .NET assemblies resides and use classes located in System.Data.OracleClient. This work for me in .NET 4 project and oracle DB 8.1.7 server.