My Oracle Support Banner

SQL Developer ( 32 bit) Fails to Connect to Microsoft Access ( 64 bit) - [Microsoft] [ODBC Microsoft Access Driver] cannot open database '(unknown)'. (Doc ID 2382454.1)

Last updated on MARCH 03, 2025

Applies to:

Oracle SQL Developer - Version 1.5.1 to 4.0.3
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Cloud Infrastructure - Database 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
Information in this document applies to any platform.

Symptoms

Trying to connect to Microsoft Access ( 64 bit) from SQL Developer ( 32 bit) fails with the following error.

[Microsoft] [ODBC Microsoft Access Driver] cannot open database '(unknown)'. It may not be a database that your application recognizes or the file maybe be corrupt.

 

Cause

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
Symptoms
Cause
Solution


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