My Oracle Support Banner

DG4ODBC and FreeTDS ODBC Driver Gives Error: Data Source Name Not Found, And No Default Driver Specified (Doc ID 1289422.1)

Last updated on JULY 09, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


It is not possible to connect to SQL*Server via DG4ODBC 11.2 using the FreeTDS ODBC driver.

An error occurs:

SQL> select * from dbo.tbl_agenda@test;
select * from dbo.tbl_agenda@test
ERROR at line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
[unixODBC][Driver Manager]Data source name not found, and no default driver
specified {IM002}
ORA-02063: preceding 2 lines from TEST


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.