I've recently upgraded from Delphi 3 and Oracle 7.3 to Delphi 4 and
Oracle 8.15 (i.e. Oracle 8i)

I have no problem reading Oracle 8.0 databases from DBExplorer and can
logon to Oracle 7.3 databases and see tables, etc.

However, when logged on to a 7.3 database and attempting to select the
'DATA' tab available for any table, I get the following error:

General SQL Error:
ORA-12663: Services required by the client are not available on the
server
BDE Error 13059

If I set the Native Oracle driver back to SQLORA32.dll (from the default
SQLORA8.dll), my sql 7.3 databases work just fine.

I've seen references to another driver dll ORA804.DLL, but this is not
on my system (not distributed with 8.1 I guess)

My guess is that I need to use a different driver dll. Anybody know what
the best settings for DLL, DLL32 and Vendor Init are for Oracle 8.15?

Thanks

There's a new parameter OBJECT MODE in the bde database definition
that's default to TRUE. Obviously there is no object mode in Oracle 7.3.
Changing that to FALSE allows it to work fine with 7.3 databases