Does qgis use gdal to access oracle data? If it does you can try to use the osgeo4w console to try to connect with gdalinfo. See if that presents a clearer error. Maybe the oracle plugin is compiled against a different version of oracle...?
If gdalinfo works, than you could create a .vrt that wraps the connection to your oracle spatial table. Try to open the .vrt in qgis... I have solved similar problems this way (dxf files wouldn't load unless through a .vrt). I have used process explorer before to find what dll is not being loaded or found... sometimes it worked sometimes it didn't... Just launch it and filter processes until you end up only with qgis related processes. You can find error messages like file not found and others. Duarte De: Jonathan Moules [mailto:jonathanmou...@warwickshire.gov.uk] Enviada: quarta-feira, 25 de Setembro de 2013 10:33 Para: Bob and Deb Cc: Duarte Carreira; qgis-user@lists.osgeo.org Assunto: Re: [Qgis-user] Oracle - QGIS connection Hi Bob, Thanks for the reply. Unfortunately none of those things seems to have made a difference. I've now installed QGIS on a second machine, one that already has a working Oracle administrator install that various other applications are successfully using (i.e. FME). But QGIS on that machine has the exact same problem with the exact same failure mechanisms/errors. So the issue seems to be QGIS specific, but I don't know enough to be able to report it as a useful bug report. Cheers, Jonathan On 24 September 2013 18:14, Bob and Deb <bobd...@gmail.com<mailto:bobd...@gmail.com>> wrote: Hello Jonathan, How about setting the environment variable ORACLE_HOME to c:\admin\apps\oracle32\product\11.2.0\client_1 and TNS_ADMIN to the location of the directory that contains tnsnames.ora? That is what I did and it works fine. In the past I also had to rename the oci.dll (or you can remove it) from c:\osgeo4w\bin because it conflicted with the oci.dll in %ORACLE_HOME%. Btw, we are connecting to Oracle 11.2.0 using OS authentication. Bob On Tue, Sep 24, 2013 at 9:48 AM, Jonathan Moules <jonathanmou...@warwickshire.gov.uk<mailto:jonathanmou...@warwickshire.gov.uk>> wrote: Hi Duarte, Cunning, I'd not played with the Python console before. The QGIS path is the same as the system one, though with extra stuff pre-pended - Oracle is in there just fine: 'c:\Admin\Apps\Progs\QGISDU~1\apps\grass\grass-6.4.3\bin;c:\Admin\Apps\Progs\QGISDU~1\apps\msys\bin;c:\Admin\Apps\Progs\QGISDU~1\bin;c:\admin\apps\oracle32\product\11.2.0\client_1\bin;C:\windows\system32;C:\windows;C:\windows\System32\Wbem;C:\windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Microsoft Application Virtualization Client;C:\Program Files (x86)\ActivIdentity\SecureLogin\;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;c:\Admin\Apps\Progs\QGISDU~1\apps\msys\bin;c:\Admin\Apps\Progs\QGISDU~1\apps\Python27\Scripts;c:\Admin\Apps\Progs\QGISDU~1\apps\qgis\bin;c:\Admin\Apps\Progs\QGISDU~1\apps\grass\grass-6.4.3\lib' Trying TNS ping from within QGIS worked just fine too: Attempting to contact (DESCRIPTION = (ADDRESS = (COMMUNITY = wcctcp.world) (PROTOCOL = TCP) (Host = co-gistest-li2) (Port = 1521)) (CONNECT_DATA = (SID = gistest) (GLOBAL_NAME = co_gistest.world))) OK (0 msec) ---- If I try and "cheat" and change my host from "co_gistest" to the actual machine name: "co-gistest-li2" - I get back an ORA-12514 instead where it says it doesn't know of the given host. But if I enter random gibberish it goes back to a ORA-12154. Very confusing (but it is Oracle). Jonathan On 24 September 2013 17:28, Duarte Carreira <dcarre...@edia.pt<mailto:dcarre...@edia.pt>> wrote: Can you compare your path to what qgis is using? In python console type: import os os.environ["PATH"] It seems to me qgis is not finding your tns settings... your're setting these up in tnsnames.ora? You can try tnsping from qgis and see what happens... try print os.popen("tnsping...").read() in your python console... Duarte De: Jonathan Moules [mailto:jonathanmou...@warwickshire.gov.uk<mailto:jonathanmou...@warwickshire.gov.uk>] Enviada: terça-feira, 24 de Setembro de 2013 17:16 Para: Duarte Carreira Cc: qgis-user@lists.osgeo.org<mailto:qgis-user@lists.osgeo.org> Assunto: Re: [Qgis-user] Oracle - QGIS connection Hi Duarte, Yep it works fine: sqlplus username/password@co_gistest Logs me straight in, and a trial select confirms I'm in. It's just QGIS that is having issues. My PATH (this is windows) is: c:\admin\apps\oracle32\product\11.2.0\client_1\bin;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Microsoft Application Virtualization Client;C:\Program Files (x86)\ActivIdentity\SecureLogin\ Am very perplexed! Cheers, Jonathan On 24 September 2013 17:05, Duarte Carreira <dcarre...@edia.pt<mailto:dcarre...@edia.pt>> wrote: It could be environmental variables messed up when launching qgis... does sqlplus work? Duarte De: Jonathan Moules [mailto:jonathanmou...@warwickshire.gov.uk<mailto:jonathanmou...@warwickshire.gov.uk>] Enviada: terça-feira, 24 de Setembro de 2013 16:00 Para: qgis-user@lists.osgeo.org<mailto:qgis-user@lists.osgeo.org> Assunto: Re: [Qgis-user] Oracle - QGIS connection Hi List, I've done a lot more dabbling and it simply refuses to work. I've now got to the point where I've installed the Administrator install of the Oracle client. Both QGIS and the client are 32bit. But no matter what I keep getting the Ora-12154 error. If I try tnsping, it can resolve the name just fine, so I'm not clear why it is failing with QGIS. I don't remember what I did previously to get it working but I'm sure it wasn't anything like this much trouble. Anyone? Thanks, Jonathan On 23 September 2013 12:56, Jonathan Moules <jonathanmou...@warwickshire.gov.uk<mailto:jonathanmou...@warwickshire.gov.uk>> wrote: Hi List, This is happening in 2.0.1 too. As other things can connect to the database from this machine I have to guess that it is a QGIS thing. I know it worked previously but doesn't seem to any more. Does it work for other folks? What are you entering into the parameters? Thanks, Jonathan On 28 August 2013 14:33, Jonathan Moules <jonathanmou...@warwickshire.gov.uk<mailto:jonathanmou...@warwickshire.gov.uk>> wrote: Anyone? I'm using QGIS weekly build d61cb25 on windows 7. 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