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Home -> Community -> Usenet -> c.d.o.misc -> Oracle 7.3 v 9.2 client connection problems
Hi all.
I have a need to connect to an Oracle 7.3.3.5 database. I have a user who successfully connects to it with her Oracle 7.3 client. I have an Oracle 9.2 client installed on my machine.
I had her send me her tnsnames.ora from her PC. The entry I wanted was as follows (some letters replaced with xxx for security reasons):
xxxora2_prod2 =
(DESCRIPTION=
(ADDRESS=
(PROTOCOL=tcp)(PORT=1521)(HOST=xxxora2.xxx.xxx.com.au)
)
(CONNECT_DATA=
(SID=prod2)
)
)
She has an ODBC connection using her Ora 73 client drivers which works fine.
I then add the same entry to my
C:\oracle\ora92\network\ADMIN\tnsnames.ora file.
Now if I ping this hostname, it works fine.
If I tnsping this hostname it also works fine - see below:
Used HOSTNAME adapter to resolve the alias
Attempting to contact
(DESCRIPTION=(CONNECT_DATA=(SID=*)(SERVICE_NAME=xxxora2.xxx.xxx.com.au))(ADDRESS=(PROTOCOL=TCP)(HOST=xxxora2.xxx.xxx.com.au)(PORT=1521)))
OK (70 msec)
If I try and tnsping the tnsname, however, I get an error:
TNS-03505: Failed to resolve name
And if I then try and create an ODBC connection using my client I get a short wait and then an "Unable to connect" "SQLState=08004" "ORA-12154: TNS:could not resolve service name" error.
The existing entries in my (9.2 client) tnsnames.ora don't have a SID, they have a SERVICE_NAME. So I change mine from SID to SERVICE_NAME. My file now looks like this:
xxxora2_prod2 =
(DESCRIPTION =
(ADDRESS_LIST =
(FAILOVER = ON)
(ADDRESS = (PROTOCOL = TCP)(HOST = xxxora2.xxx.xxx.com.au)(PORT
= 1526))
)
(CONNECT_DATA=
(SERVICE_NAME = prod2)
(INSTANCE_NAME = prod2)
)
)
If I now try and create the connection, I get a "Unable to connect" "SQLState=S1000" "ORA-12705: invalid or unknown NLS parameter value specified" error.
I have checked my HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\NLS_LANG value which is AMERICAN_AMERICA.WE8ISO8859P1 so that looks OK.
Does anyone have any ideas?? I am a developer not a DBA and haven't played with Oracle clients for years.
If I change the port number to 1521 and try again I get a "ORA-12514: TNS:listener could not resolve SERVICE_NAME given in connect descriptor" error, but I am just clutching at straws now.
Thanks!
Simon Cullen
Australia
Simon.Cullen..._at_BHPBilliton.com remove the xxx Received on Thu Apr 07 2005 - 23:05:07 CDT
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