ODP.NET Causes Unhandled AccessViolationException When FillDataset or ExecuteReader Queries Executed With SELECT DISTINCT Keyword

(Doc ID 2424353.1)

Last updated on JULY 19, 2018

Applies to:

Oracle Data Provider for .NET - Version 12.1.0.2 and later
Microsoft Windows x64 (64-bit)
Microsoft Windows (32-bit)

Symptoms

Unmanaged ODP.NET is throwing AccessViolationException when using DISTINCT keyword in SELECT statement.

Scenario is as explained below:

 

Changes

Upgraded to ODAC 12.1.0.2 Release 4

Cause

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