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heterogeneous link from oracle XE to firebird [message #327907] Wed, 18 June 2008 06:22 Go to next message
sead
Messages: 2
Registered: June 2008
Junior Member
Hi,
I/m trying to setup a heterogeneous link from an oracle XE (10.2.0) on a
Redhat :

Linux version 2.6.9-5.ELsmp (bhcompile@decompose.build.redhat.com) (gcc version 3.4.3 20041212 (Red Hat 3.4.3-9.EL4)) #1 SMP Wed Jan 5 19:30:39 EST 2005

To a firebird database using IBPhoenix Open Source ODBC Driver.
Everything went OK. Except when I execute an sql statement from oracle
Like :
select icode,iname from itable@superbase
where icode and iname are strings the first row is displayed correctly but from the second row the strings are scrambled. Fro example instead of 123456
I get 354162 for field icode and instead of MASTER I get ASERM .
All the numeric fields are displayed correctly.

When I execute the same from isql on the linux server everything works OK.
When I execute the sql above as
select icode,iname from itable@superbase where icode=’123456’
and returning one row everything displayed OK.

I’m attaching the configuration files for your reference.
Any advice appreciated.
Thanks

# tnsnames.ora Network Configuration File:
XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = okserver.ok)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )


EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

superbase=
(DESCRIPTION=
   (ADDRESS=(PROTOCOL=TCP)(HOST=okserver.ok)(PORT=1521))
   (CONNECT_DATA=(SID=superbase))
   (HS=OK)   
)


# listener.ora Network Configuration File:
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /usr/lib/oracle/xe/app/oracle/product/10.2.0/server)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (SID_NAME = superbase)
      (ORACLE_HOME = /usr/lib/oracle/xe/app/oracle/product/10.2.0/server)
      (PROGRAM = hsodbc)
      (ENVS=LD_LIBRARY_PATH=/usr/lib/unixODBC)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
      (ADDRESS = (PROTOCOL = TCP)(HOST = okserver.ok)(PORT = 1521))
    )
  )




the initsuperbase.ora

#
# HS init parameters
#
HS_FDS_CONNECT_INFO = superbase
HS_FDS_TRACE_LEVEL = off
HS_FDS_SHAREABLE_NAME = /usr/lib/unixODBC/libOdbcJdbc.so  
#
# ODBC specific environment variables
#
set ODBCINI = /etc/odbc.ini




The /etc/odbc.ini

[superbase]
Description = Firebird
Driver = Firebird
Dbname = localhost:/usr/databases/2008/superbase.gdb
User = SYSDBA
Password = masterkey
Role =
CharacterSet = WIN1253
ReadOnly=No
NoWait = No



and the sql link :
create database link SUPERBASE
connect to SYSDBA
using 'superbase';
Re: heterogeneous link from oracle XE to firebird [message #328021 is a reply to message #327907] Wed, 18 June 2008 11:07 Go to previous messageGo to next message
BlackSwan
Messages: 22845
Registered: January 2009
Senior Member
I am just guessing but I suspect a bug the the s/w driver.
The byte ordering is not as it should be.
Are both RDBMS running on the same physical hardware system?
Re: heterogeneous link from oracle XE to firebird [message #328178 is a reply to message #328021] Thu, 19 June 2008 04:22 Go to previous messageGo to next message
sead
Messages: 2
Registered: June 2008
Junior Member
Thanks for your reply
Quote:
Are both RDBMS running on the same physical hardware system?

Yes both of them are on a Dell server.
Quote:
I suspect a bug the the s/w driver.

I have the same suspect, but when Ι use isql from the Linux terminal using the same ODBC driver there is no problem with the string fields.

[Updated on: Thu, 19 June 2008 05:02]

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Re: heterogeneous link from oracle XE to firebird [message #328796 is a reply to message #327907] Sun, 22 June 2008 20:50 Go to previous message
BlackSwan
Messages: 22845
Registered: January 2009
Senior Member
>but when Ι use isql from the Linux terminal using the same ODBC driver there is no problem with the string fields.
AFAIK, isql does NOT use ODBC & connects to the DB via port 80.
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