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ORA-28500 - Unable to Connect to Data Source - Using DG4ODBC and FreeTDS ODBC Driver (Doc ID 1309708.1)

Last updated on JUNE 20, 2018

Applies to:

Oracle Server - Enterprise Edition - Version to [Release 11.1 to 11.2]
Information in this document applies to any platform.
Add ***Checked for relevance on 04-Sep-2012***


Using Dg4ODBC on Linux x86-64 with the FreeTDS ODBC driver a select gives the following error -

SQL> select * from Table@GATEWAY;
select * from Table@GATEWAY
ERROR line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
[unixODBC][FreeTDS][SQL Server]Unable to connect to data source
{08001}[unixODBC][FreeTDS][SQL Server]Adaptive Server connection failed

A DG4ODBC debug trace shows the following information -

Entered hgopoer at 2011/03/29-21:28:20
hgopoer, line 233: got native error 0 and sqlstate 08001; message follows...
[unixODBC][FreeTDS][SQL Server]Unable to connect to data source {08001}[unixODBC][FreeTDS][SQL Server]Adaptive Server connection failed {01000,NativeErr = 20002}[unixODBC][FreeTDS][SQL Server]Unexpected EOF from the server {01000,NativeErr = 20017}
Exiting hgopoer, rc=0 at 2011/03/29-21:28:20
hgocont, line 2752: calling SqlDriverConnect got sqlstate 08001
Exiting hgocont, rc=28500 at 2011/03/29-21:28:20 with error ptr FILE:hgocont.c LINE:2772 FUNCTION:hgocont() ID:Something other than invalid authorization


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