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How to Configure DG4ODBC (Oracle Database Gateway for ODBC) on 64bit Windows Operating Systems to Connect to Non-Oracle Databases Post Install (Doc ID 1266572.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version and later
Microsoft Windows x64 (64-bit)


Starting with 11R2g Oracle now provides a Database Gateway for ODBC for 64bit Windows operating systems which can be used to connect to any 3rd party database using a suitable 3rd party 64bit ODBC driver.

Please be aware:

- DG4ODBC is first ported to 64bit Windows platforms starting with 11.2 and it is NOT supported to use a 32bit DG4ODBC on a 64bit Windows operating system nor can you use a 32bit ODBC driver with a 64bit DG4ODBC.

The gateway is certified also for older Oracle releases,, or But please be aware those pre-11g Oracle databases require a patch to work properly with V11 Gateways.

The patch can be found on My Oracle Support by performing a simple search under the 'Patches & Updates' tab at the top of the page. Choose 'Simple Search' and enter 5965763 in the block for the patch number and select the appropriate platform from the Platform or Language list.

This compatibility patch is already included in the patchsets.


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