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Database Connectivity Error -2147467259 or -21468245984 With LabVIEW Application

Updated Jan 10, 2023

Reported In


  • LabVIEW Database Connectivity Toolkit

Programming Language

  • LabVIEW G

Issue Details

I have a LabVIEW application that uses the LabVIEW Database Connectivity Toolkit to access a local database file (.mdb) created using Microsoft Access. When I tried to run the application, I get the following errors messages.
  • Error -2147467259 occured at NI_Database_API.lvlib:DB Tools Open Connec(String).vi->Untitled 1
  • Error -2146824584 Occured at Untitled 1



The error messages suggest that LabVIEW is not able to connect to the database server and the Open Database Connectivity (ODBC) is either not configured or configured incorrectly. 

To access a database from other applications, you need to specify a Data Source name (DSN) or Microsoft Data Link file (.udl).

In LabVIEW, the LabVIEW Database Connectivity Toolkit allows you to use either of the following methods:

Instead of specifying a DSN or UDL file, you can also access a database by passing a connection strings to the DB Tool Please refer to the connection strings reference guide for the specific connection string for each database type. 

Additional Information

When connecting to a database in LabVIEW using DSN file, the connection string needs to be the same as specified in the ODBC Data Source Administrator.