On Fri, Dec 14, 2007 at 10:47:16AM -0700, Loo, Peter # PHX wrote: > I am not familiar with the tnsnames.ora file. Here is what they are > set to. I did not find anything out of the ordinary.
If both ORACLE_HOME's have the same contents in the tnsnames.ora, then you should be able to connect to both instances using either one. > To answer > your question about why I am changing the ORACLE_HOME, it is because > I spawn a "sqlldr" using system() within the program. If I don't > set the ORACLE_HOME to the relevant version of Oracle, I get the > SQL*Loader-951 and ORA-00942 errors when I spawn system($sqlldrCmd). I am not all that familiar with sqlldr, but I think you can supply a username/password/instance on the command line. So in theory it should work too unless the loading format is different between versions. If you do continue to switch ORALCE_HOME and PATH, I would definitely recommend switching LD_LIBRARY_PATH too (so sqlldr picks up the correct shared libraries when you spawn it). > INST1.domain.com = > (DESCRIPTION = > (ADDRESS_LIST = > (ADDRESS = (PROTOCOL = TCP)(HOST = hostname.domain.com)(PORT = 1521)) > ) > (SDU = 32767) > (CONNECT_DATA = > (SID = inst1) > ) > (TDU = 32767) > ) > > INST2 = > (DESCRIPTION = > (ADDRESS_LIST = > (ADDRESS = (PROTOCOL = TCP)(HOST = hostname.domain.com)(PORT = 1521) > ) > ) > (CONNECT_DATA = > (SERVICE_NAME = inst2) > ) > ) > ) > > -----Original Message----- > From: David Dooling [mailto:[EMAIL PROTECTED] > Sent: Wednesday, December 12, 2007 2:01 PM > To: dbi-users@perl.org > Subject: Re: ORA-12154: TNS:could not resolve the connect identifier specified > > On Wed, Dec 12, 2007 at 01:28:37PM -0700, Loo, Peter # PHX wrote: > > I tried setting both variables at the very beginning before any > > connection is made and the result is still the same. > > > > $ENV{ora_envhp} = 0; > > $ENV{ORA_ENVHP} = 0; > > Why are you switching the ORACLE_HOME at all? The 9i client should > be able to connect to the 10g database just fine (and vice versa). > All you need to do is ensure you have the appropriate entries for > the 9i and 10g instances in the network/admin/tnsnames.ora of > whatever client you are using. > > Switching as you are is quite problematic since the Oracle shared > libraries are probably only loaded once, the first time DBD::Oracle > is loaded by Perl. Switching ORACLE_HOME and PATH (it seems you > would also have to change LD_LIBRARY_PATH) after loading one set of > shared libraries is going to lead to unpredictable behavior. -- David Dooling
